DE6003-002 [ETC]
Telecommunication IC ; 电信IC\n
| 型号： | DE6003-002 |
| 厂家： | 
ETC |
| 描述： | Telecommunication IC
|
| 文件： | 总12页 (文件大小：319K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
JUNE 1995
DS3506-7.3
DE6003
DIGITAL RADIO TRANSCEIVER
(Supersedes DS3506-6.3, September 1994)
The DE6003 is a high performance frequency hopping
microwave radio, designed for spread spectrum operation. It oper-
ates in the 2·4 to 2·5GHz band. Portions of this band are available
for data transmission on an unlicensed basis in most countries on a
shared basis with existing users (that include microwave ovens,
intruder alarms etc).
The radio is highly resistant to interference and has many other
design features that ensure the most reliable data
transfer possible (when used in conjunction with an advanced
protocol).
Co-location with other simultaneous users (as well as interfer-
ers) is possible, giving an unsurpassed data density in a given area.
The radio has been designed specifically for portable
computer applications (including use ‘on the move’). It is also suit-
able for a wide variety of other applications including
inventory control, point of sale terminals (including handheld) and
data logging.
FEATURES
■ Rapid Frequency Hopping with 1MHz
Channels 2·4 to 2·5GHz
■ Designed To Meet World Wide Standards
■ 625 kb/s Data Rate
DE6003 digital radio transceiver
■ Highly Selective Receiver, Wide Dynamic Range
■ High Simultaneous User Density
■ Diversity for Mobile Applications
■ Fast Switching for Support of Advanced,
Interference Resistant Protocols
■ Miniature Size with Low Power Consumption for
Handheld Use
RELATED DOCUMENTS
GPS Outline drawing number: M50633-A2
FCC Rule 15.247
ETSI ETS 300-328
Japanese specification number RCR STD-33
ORDERING INFORMATION
DE6003-001 Max. transmit power: 120dBm
DE6003-002 Max. transmit power: 122dBm
ISO9000 Quality Manuals
GPS application notes AN142,143,144,145, 154 and 203
for further design information
ANTENNAS
ANTSEL
VCC
3V to
2
1
5
VCC (15V)
RX/TX
(
1
6V)
SWITCHING
REGULATOR
90°
SAW 2
38MHz
SAW 1
350MHz
VEE (25V)
RXD
RSSI
LO2
PLL
312MHz
S1
S2a
S2b
2·05-2·15
GHz
CHANNEL
7
SELECT
HOPPING
LOADB
PLL
4
40/41
2
700MHz
S2c
TX
PLL
42
TXD
140MHz
45
POWER CONTROL
GND
Fig.1 DE6003 functional block diagram
DE6003
EXTERNAL INTERFACE
The antenna select input (ANTSEL) is used to switch
between the two antenna ports; this input should be set to
antenna 1 for transmit and only switched when the transceiver
is in receive mode for antenna diversity selection.
The data input (TXD) has data applied in simple non-return
to zero (NRZ) format with the maximum consecutive ‘1’s or ‘0’s
limited to 16. Receive data (RXD) is demodulated and output in
NRZ format with no clock extracted. The RXD output is
designed to drive a high impedance CMOS input with a
maximum load capacitance of 6pF. Loads in excess of 6pF will
extend the negative edge time of the output data resulting in
pulse stretching.
The DE6003 transceiver has a simple external interface, with
all but three interface connections having CMOS compatible
switching levels: some inputs have pull-down or pull-up resistors.
The DE6003 connection list, Table 2, is followed by a description
of each of the external connections in pin number order.
On power up, the DE6003 transceiver should have its control
inputs set to receive with the power amplifier off. On power
switch-on, a channel within the 101 channels is selected by the
value that is on the select data inputs SD(6:0); the correct channel
should be loaded by placing the channel number on the select
data inputs and strobing the channel data in with LOADB.
ELECTRICAL CHARACTERISTICS
The Electrical Characteristics are guaranteed over the following range of operating conditions, unless otherwise stated:
TAMB = 0°C to 155°C, VCC = 5V±5%, VCC25 = 13V to 16V.
Value
Characteristic
Symbol
Units
Conditions/comments
Min.
Max.
All Inputs
Input voltage low
Input voltage high
VIL
VIH
0
3·5
1·5
VCC
V
V
PAOFF, PWRLO, ANTSEL
Input current low
IIL
IIH
210
10
µA
µA
V
IN = 0V
Input current high
VIN = VCC =5·25V
RX/TX
Input current low
Input current high
IIL
IIH
2400
50
2600
150
µA
µA
V
V
IN = 0V
IN = VCC =5·25V
LOADB
Input current low
Input current high
IIL
IIH
2250
2400
10
µA
µA
V
IN = 0V
VIN = VCC =5·25V
STDBY
Input current low
Input current high
IIL
IIH
210
200
µA
µA
V
V
IN = 0V
IN = VCC =5·25V
SD (6:0), TXD
Input current low
Input current high
IIL
IIH
210
200
µA
µA
SYNLOK
Note: Not CMOS compatible switching levels.
at 1mA sink
at 1mA source
Output voltage low
Output voltage high
VOL
VOH
0
0·5
V
V
V
CC 20·5 VCC
RXD
Output voltage low
Output voltage high
Rise/fall time
VOL
VOH
0
3·8
75
1·2
VCC
150
V
V
ns
VCC =15V at 100µA
VCC =15V at 100µA
Load = 6pF
CLK
Note: Not CMOS compatible switching levels.
For load impedance <300Ω
See AN142 for interface circuit
Output current low
Output current high
IOL
IOH
20·25
0·25
21·6
1·6
mA
mA
RSSI
Note: Analog output, source impedance 10kΩ – not
CMOS compatible. See Fig 9.
Output voltage low
Output voltage high
VOL
VOH
0
V
V
3·3
30
ANT1, ANT2
Isolation between ports
10
0
dB
Nominal 50Ω load on each port
Negative Supply, VEE
Output current
IEE
VEE
215
mA
V
mVp-p
Output voltage
Ripple and noise
24·75 25·25
Test at VCC25 = +5V
at 215mA
50
Table 1
2
DE6003
EXTERNAL CONNECTIONS, 40-WAY CONNECTOR
Pin
Name
Description
1
2,4,6
3
FRMGND
VCC
Frame Ground. Connects to antistatic circuits on DE6003 and internally connected to ground.
15V supply pins.
PWRLO
ANTSEL
Power Level Control. Sets transmitter power to high (PWRLO = ‘1’) or low (PWRLO = ‘0’).
5
Diversity Control. This signal is used to select antenna port ANT1 (ANTSEL = ‘0’) or antenna port
ANT2 (ANTSEL = ‘1’). This can be used to make use of diversity to overcome signal nulling due to
destructive interference caused by multipath propagation.
7
RX/TX
Receive/Transmit control. Switches between Receive (RX/TX = ‘1’) and Transmit (RX/TX = ‘0’)
functions. CMOS compatible with 10kΩ nominal pull up resistor.
8
9
VEE
25V output from internal switching regulator, powered by external15V supply, VCC25, pin 15.
RXD
Received Data output.This low drive current data output is the output from the receiver demodulator.
Total load on RXD should be less than 6pF.
10
11
12
VEEGND
RXDGND
PAOFF
25V Ground.
Receive Data Ground. See note 1.
Transmitter Power Amplifier Control. PAOFF is used to turn the transmitter power amplifier on and
off, in conjunction with RX/TX.
13
INTERLOCK Connected to ground and can be used to indicate that the DE6003 is connected.See note 2.
14,16,18,20
GND
VCC25
Test
15V Ground. Internally connected to all other grounds 1, 10, 11,19, 23 and 33.
Positive supply input for internal 25V VEE generator.
15
17
19
Open circuit for normal mode, high for test mode. For factory use only.
Ground for 25V regulator. Internally connected to all ground pins 1,10,11,14,16,18, 20, 23 and 33.
GND25
NC
21,22,24,
26,27
No Connection. These pins are not used, but no connection should be made to them as GPS re-
serves the right to use them for future expansion.
23
25
CLKSHLD
CLK
System Clock Ground. See note 1.
System Clock. This synthesiser clock output at 10MHz is also made available during standby as well
as being available during normal operation (it is not a recovered data clock). This output is a constant
current sink/source which must be terminated such as to keep its voltage swing low. See note 2.
28
SYNLOK
Synthesiser Lock Monitor. Should only be used to indicate PLL failure. Lock (SYNLOK = ‘0’) is
defined as all three PLLs in lock. Unlock (SYNLOK = ‘1’) is defined as an Error Condition. Note that
when switching channels unlock may occur for short periods while locking on new channel.
29
30
TXD
Transmitter Data Input. CMOS compatible with no pull up/pull down resistor.
STDBY
Standby . When low, disables radio function, placing all ICs into a low current mode; however, the
10MHz clock and the 25V regulator continue to run in Standby mode, providing a clock
and 25V output on the 40-way connector. CMOS compatible with 30kΩ nominal pull down resistor.
31
RSSI
Receive Signal Strength Indicator. Received in-band signal level monitor. The analog RSSI output
increases monotonically from 0V to 13V proportional to the logarithm of the input signal power.
Source impedance is 10kΩ .
32
34
35
37
39
36
38
SD0
SD1
SD2
SD3
SD4
SD5
SD6
Channel Select Code, SD6:0. These 7 data lines determine the channel used for both transmit and
receive.They are latched on the falling edge of LOADB and implemented on the rising edge of LOADB.
and are CMOS compatible with 30kΩ nominal pull down resistors. SeeTables 3 and 4.
33
RSSIGND
Received Signal Strength Indicator Ground. Internally connected to all ground pins 1, 10,14,16,18,19,20
and 23.
40
LOADB
Channel Select Load Pulse. This active low pulse loads SD (6:0) code into a data latch to set the
required channel. CMOS compatible with 30kΩ nominal pull up resistor. See Tables 3 and 4.
NOTES. 1. All ground pins (1, 10, 11, 14, 16, 18, 19, 20, 23 and 33) are internally connected. 2. See AN142, Designing with the DE6003, for
further information.
Table 2
3
DE6003
Illegal Channel Allocation
Channel select
code (SD0 = LSB)
Channel
Frequency (GHz)
In order to keep transmissions to within the 2·4 to 2·5GHz
frequency band, channels 101 and above will default to the
channels within this band as listed in Table 4.
Note that the channels used are dependent on the frequency
allocation in the country of use and the drive circuit/control logic
must limit the selected channels to within these frequency limits.
0
1
2
3
0000000
0000001
0000010
0000011
2·400
2·401
2·402
2·403
Antenna Ports
Two antenna ports are available (ANT1 and ANT2) for
receiver diversity and are selected by ANTSEL (pin 5 on the
40-way connector).These ports have 50V nominal impedance.
The port isolation is specified in Table 1.
98
99
100
1100010
1100011
1100100
2·498
2·499
2·500
Table 3 Channel allocation
TRANSCEIVER CHARACTERISTICS
General Electrical Performance
DC power supply requirements
The VCC (15V) power supply needs to be well regulated,
low noise (less than 20mVp-p ripple and noise) and have a
source impedance of less than 50mV at 1kHz. The VCC supply
Illegal
channel
Illegal channel
select code
Default
frequency (GHz) channel
Default
has been separated from the input (VCC25) to the 25V (VEE
)
generator to provide greater flexibility in the overall system
design.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
1100101
1100110
1100111
1101000
1101001
1101010
1101011
1101100
1101101
1101110
1101111
1110000
1110001
1110010
1110011
1110100
1110101
1110110
1110111
1111000
1111001
1111010
1111011
1111100
1111101
1111110
1111111
2·500
2·500
2·500
2·444
2·445
2·446
2·447
2·444
2·444
2·446
2·446
2·444
2·445
2·446
2·447
2·444
2·444
2·446
2·446
2·444
2·445
2·446
2·447
2·444
2·444
2·446
2·446
100
100
100
44
45
46
47
44
44
46
46
44
45
46
47
44
44
46
46
44
45
46
47
44
44
46
46
Extra care should be taken with ripple and noise
suppression of the VCC supply if the VCC25 supply is connected
to the radio’s main VCC supply. If supplied separately, ripple and
noise on the VCC25 supply should be less than 100mVp-p
at 1kHz.
NOTE: Ripple and noise on the 15V power supply (VCC
)
modulatesthetransmitteroutputandlevelsabovethosespeci-
fied will result in increased spurious output from the DE6003,
and will also cause degradation in receiver sensitivity.
ABSOLUTE MAXIMUM RATINGS
Supply voltage, VCC
Supply voltage to VEE generator, VCC25
Input voltage
Operating temperature
Storage temperature
Transmitter duty cycle
Maximum RF input
0V to 16V
0V to 16V
20·3 to VCC10·3
0°C to 155°C
220°C to 170°C
See Fig. 2
30dBm
Stresses above those listed may cause permanent damage
to the transceiver. These are stress ratings only and functional
operation of the transceiver at those conditions, or at any other
condition above those indicated in the operation section of this
data sheet is not implied. Exposure to Absolute Maximum
Rating conditions for extended periods may affect device
reliability.
NOTE: The VCC25 supply must be applied not less than
10ms before the VCC supply. Failure to observe this require-
ment could result in premature failure of the transceiver.
Table 4
V
CC = 5V, 125°C
V
CC = 5·25V, 0°C to 155°C
Parameter
Units
Max.
Max.
Min.
Typ.
VCC25 supply current at 3V
VCC25 supply current at 5V
VCC25 supply current at 6V
VCC supply current standby
VCC supply current receive
VCC supply current transmit
-
-
-
mA
mA
mA
mA
mA
mA
-
-
-
-
-
-
30
18
15
30
150
400
20
140
384
8
80
200
14
120
330
NOTES
1. Currents shown are for the transceiver only.
2. Peak input current requirements are>100mA as the 100µF capacitor has to be charged
3. VEE may be supplied from an external source, in which case VCC25 should not be connected. SeeAN142
for further information.
Table 5 Supply currents
4
DE6003
running at lower temperatures. The thermal time constant of
the radio is 1 minute and this derating curve can only be applied
to transmitter for continuous transmit times of less than
20 seconds; above this time the duty cycle should be
considered 100%. For continuous operation the case
temperature should not exceed 40°C.
Environmental Limiting Conditions of Use
● Operational Temperature: 0°C to 155°C.
● Storage Temperature 220°C to 170°C.
● Humidity: 95% non-condensing.
● ESD: Human body model, 4000V.
● Vibration Testing: 10 t0 2000Hz, displacement 61mm,
acceleration 2G.
60
55
50
Operating temperature
When in operation the transmitter power amplifier (PA)
dissipates the highest amount of power and creates the highest
temperature. In order to keep the temperatures to a safe level
the environment in which the radio is operated must be kept
within the values specified in Environmental Limiting Conditions
of Use, above.
40
30
SAFE WORKING AREA
20
The radio dissipates this heat from the whole of its surface,
in particular from the metallic screen; steps must be taken to
prevent overheating as early failure of the radio may occur.
Depending on the air temperature surrounding the radio, the
PAduty cycle must be set to keep the dissipation to a safe value.
The transmitter power amplifier derating curve of Fig.2 shows
the derating factors that should be applied in order not to
exceed the maximum working temperature. Running at the
maximum permitted temperature on the PA will (as with all
semiconductor devices) result in shorter operational life than
10
0
0
20
40
60
80
93 100
PA DUTY FACTOR (%)
Fig. 2 PA duty cycle
TIMING SPECIFICATIONS AND CONDITIONS OF USE
The timing diagrams, Figs. 3 to 8, show some of the normal sequences used in the control of the DE6003 and are used to illustrate
timing relationships. Table 6 is the truth table for these signals values for which are given in Table 7. Each entry in Table 7 is described
on pages 9 and 10.
STDBY
RX/TX
PAOFF
PWRLO ANTSEL
SD (6:0)
X
LOADB
State
L
X
H
X
L
X
L
X
L
X
Standby
H
0000000
Receive, ANT 1, low power, PA off,
setting Channel 0
H
H
H
H
L
L
L
H
L
0001000
0010000
Receive, ANT 2, low power, PA off,
setting Channel 8
H
Receive, ANT 1, high power, PA off,
setting Channel 16
H
H
H
H
H
L
L
L
L
L
H
L
H
L
L
L
X
X
X
X
H
H
H
H
Receive, ANT 2, high power, PA off
TX ready, ANT 1, low power, PA off
Transmit, ANT 1, low power, PA on
Transmit, ANT 1, high power, PA on
H
H
L
H
Table 6 Control signals truth table
5
DE6003
DYNAMIC CHARACTERISTICS
These Characteristics are guaranteed over the following range of operating conditions and apply to both the DE6003-001
and DE6003-002 unless otherwise stated:
TAMB = 25°C, VCC = 5V65%, VCC25 = 13V to 16V, data rate = 625kb/s. Refer to Figs. 3 through 8 and Notes on pages 9 and 10.
VCC = 5V65% at
0°C to 55°C
VCC = 15V at 25°C
Units Note
Symbol
Characteristic
Min. Typ. Max.
Min. Max.
DE6003-001 output power (high) See note (i)
DE6003-002 output power (high) See note (i)
Output power (high) ripple
15·5
18
18
1
20
22
3
-
dBm
dBm
dB
1
1
1
1
1
2
2
3
3
4
5
5
9
6
-
15·5
0
6·5
0
-
-
-
-
Output power (low)
12
1
16
3
dBm
dB
Output power (low) ripple
-
-
-
Power amplifier rise time to 90% full power
Power amplifier fall time to 10% full power
Maximum continuous transmit time
Minimum time between consecutive transmissions
Transmitter delay
t1
t2
-
4
4
µs
-
-
4
10
20
-
µs
-
-
-
-
ms
µs
-
-
-
-
80
-
-
-
-
800
-
ns
RX/TX to PA on
t6
t7
-
-
-
µs
1
-
Receive mode to valid transmit data
TX/RX frequency agility
-
5·7
80
-
-
-
µs
t10
-
95
-
110
1
µs
-
Modulated transmitter bandwidth for220dBc. See note (i)
Transmitter out of band spurious emissions. See note (i)
Transmitter out of band spurious emissions, Chan. 84. See note (i)
Transmitter in band spurious emissions
Power off to transmit
-
MHz
-
Tested to conform to the regulatory limits (see page 7)
-
-
230
-
dBc
-
-
250 240
240 dBc
31
7
-
-
-
-
-
-
-
-
-
-
-
-
10
1
-
ms
ms
ns
-
Standby to transmit
-
8
-
0
LOADB pulse data setup time
t13
t14
t15
0
10
10
10
LOADB pulse width
1
-
µs
1
LOADB pulse data hold time
-
-
ns
10
-
Receiver sensitivity for BER <131025
Receiver sensitivity for BER <131025, Chan. 84. See note (i)
Max. input signal for BER <131025
Bit period of received data, pseudo random (single bit)
Bit period of received data (unbalanced)
Received data delay
-
281 277
277 dBm 11
-
-
-
-
277
-
-
dBm 11
dBm 12
-
-
1·85
-
215
-
t16
t16
t18
t19
t20
t21
t21
t22
1·35
-
1·6
1·6
-
-
µs
µs
µs
µs
µs
µs
µs
µs
dB
dB
dB
dB
dBc
V
13
13
2·0
3·5
110
30
-
1·20
-
-
-
14
Frequency hop time to valid received data
Transmit mode to receive data valid
RF burst response to valid data
-
80
18
18
-
95
24
24
-
15
-
-
16
6
-
17
-
RF burst response to valid data
-
30
30
-
17
-
Time to valid data after antenna selection
Receiver selectivity f0 = 61·5MHz (unmodulated)
Receiver selectivity f0 = 62MHz (modulated)
Receiver selectivity f0 = 63MHz (modulated)
Receiver selectivity f0 = 610MHz (modulated)
Receiver spurious rejection performance <1·8GHz
RSSI output at 280dBm. See note (i)
RSSI output at 238dBm
-
18
-
-
18
6
60
25
31
40
-
-
20
-
35
41
47
-
-
19
20
30
40
250
0·7
2·0
-
-
-
19
-
19
-
-
21
0·8
2·2
1·4
2·8
2·0
3·3
2·5
3·3
22
V
22
Cont…
NOTE (i) Additionally measured on Channel 84 for RCR STD-33
Table 7
6
DE6003
DYNAMIC CHARACTERISTICS (Continued)
Characteristic
VCC = 5V65% at
0°C to 55°C
VCC = 15V at 25°C
Note
Units
Symbol
Min. Typ. Max.
Min. Max.
RSSI delay time
23
24
24
25
25
26
27
27
27
28
29
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
50
-
-
70
-
4·5
-
µs
µs
µs
µs
µs
µs
-
-
-
-
-
-
-
-
-
-
-
-
Frequency hop time to valid RSSI
Frequency hop time to valid RSSI
Transmit mode to receive valid RSSI
Transmit mode to receive valid RSSI
Time to valid RSSI after antenna selection
Receiver conducted emissions <1GHz
Receiver conducted emissions <1GHz, Chan. 84. See note (i)
Receiver conducted emissions >1GHz
Power off to receive valid data/RSSI
Standby to receive valid data/RSSI
Frequency stability
t23
t23
t24
t24
t26
-
80
-
4
-
5
-
6
-
-
5
277 257
257
256 247
257 dBm
dBm
247 dBm
-
-
-
-
t27
t28
-
-
-
-
-
-
-
10
1
ms
ms
±20
ppm
Table 7 (Continued)
UNWANTED EMISSIONS
The DE6003 has been characterised to meet
the RCR STD-33, ETSI ETS 300-328 and FCC15.247 regulatory
limits when used correctly and during test the production units
are checked for conformity. When the radio is required to comply
with FCC 15·247 regulations, the protocol must permit the radio
to transmit any one channel for a total time not exceeding 20ms
in any 100ms period. For correct use a suitable protocol, timing
and timing sequences must be used as indicated in application
note AN142.
strict limits on the amount of radiation allowed outside, but
adjacent to, the band. Because the modulated
signal is not infinitely small, certain constraints exist in the
proximity of the operating channel to the edge of the
allocated band.
For maximum network throughput, it advisable to arrange
that stations do not attempt to use adjacent channels, but to
use channels separated by at least 2MHz from any other
channel that is in use.
The antennas used will also determine if conformity to the
above regulations is possible; effects of both gain and harmonic
response must be considered. Substitution by the end user of
alternative antennas to those supplied with the equipment should
not be possible if FCC regulations are to be complied with.
The 2·4GHz ISM band is allocated such that there are
NOTE: To comply with the regulations, it is recommended
that the following channels are used, allowing ‘guard bands’
at each end of the usable frequency allocation:
ETSI and FCC: Channels 01 to 82 (2402 to 2482MHz);
RCR: Channels 72 to 95 (2473 to 2495MHz).
t
t
2
6
RX/TX
PAOFF
t
1
RF OUTPUT
RADIO MODE RECEIVE
TXD
t
20
TRANSMIT
RECEIVE
t
7
DATA FOR TRANSMISSION
RXD VALID DATA
RSSI VALID RSSI
PWRLO
VALID DATA
t
24
VALID RSSI
ANTSEL
Fig. 3 Timing control diagram
7
DE6003
SD (6 : 0)
LOADB
t
13
t
14
t
15
t
10
CHANNEL A
CHANNEL CHANGING
CHANNEL B
Fig. 4 Channel strobe timing diagram
LOADB
PAOFF
CHANNEL B
CHANNEL A
t
2
t
10
RX/TX
TXD
t
6
DATA
DATA
t
1
Fig. 5 Transmit-channel hop-transmit timing diagram RX/TX = 0)
LOADB
t
10
CHANNEL B
VALID DATA
VALID RSSI
CHANNEL A
t
19
RXD
VALID DATA
VALID RSSI
INVALID DATA
t
23
RSSI
Fig. 6 Receive-channel hop-receive timing diagram (RX/TX = 1)
LOADB
t
19
CHANNEL B
CHANNEL A
t
t
10
2
PAOFF
TXD DATA
RXTX
RXD
INVALID DATA
VALID DATA
Fig. 7 Transmit-hop-receive timing diagram
t
16
t
16
RXD
Fig. 8 Bit period of received data
8
DE6003
Dynamic Characteristics – Notes to Table 7
1. Transmitter Power Output
9. Transmitter/Receiver Frequency Agility (t10 – see Figs.
4,5,6 and 7)
Selectable by control line, to high or low output power
setting. Power levels are for any channel into 50Ω and
measured at ANT1. Output ripple is measured over
5 channels.
The DE6003 is designed to be used in a Frequency Hopping
Spread Spectrum Radio System. This requires fast channel
switching, which is defined as the time taken from the rising
edge of LOADB to the required channel being within 40kHz
of the frequency required.The operating channel should not
be switched until the output power has fallen to less than
10% after the power amplifier has been switched off when in
transmit mode.
2. Transmitter Power Amplifier Control, PAOFF
(t1,t2 and t6 – see Fig. 3)
This control is used in conjunction with the RX/TX. PAOFF is
included to allow the power amplifier to be turned on after
RX/TX has been set low to transmit (t6, rising to 90% in t1)
and off before being set high to receive (t2). The power am-
plifier has been designed to switch on and off in this control-
led way to avoid generating unwanted emissions which would
be caused by simply turning the transmit power on and off.
10.Transmit/Receive Frequency Select (t13, t14 and t15
see Fig. 4)
–
The DE6003 transceiver will operate over 101 channels
spaced at 1MHz intervals within the frequency band 2·400
to 2·500GHz. This is selected by setting SD (6:0) to the
desired channel number and strobing in the data by pulsing
LOADB low. When LOADB is low data ripples through a
transparent latch, and is loaded into synthesiser data hold
register on the rising edge of LOADB.
3. Transmit Times
When in transmit mode, the transmit (700 MHz) PLL is
opened, preventing the PLL tracking the low frequency
components of the transmitted data. This puts a limit on the
maximum length of the data block which can be transmitted
and places a requirement of a delay between
switching to receive mode and transmit mode, in order for
the PLL to gain lock.
11.Receiver Sensitivity
A modulated signal of amplitude greater than or equal to the
value specified in Table 7 injected at either antenna port will
exhibit a Bit Error Rate of no more than 10−5 at 625 kb/s.
GPS measure this by applying a signal modulated with a
pseudo random DATAstream (215−1)and modulated with an
Anritsu MD6420A Transmission analyser , together with a
Marconi Instruments 2031 signal source for TXD and a
signal shaping filter with the characteristics of the DE6003
transmitter filter. The receive data clock used is the transmit
data clock delayed by 400ns to enable centre-bit sampling
(optimum sampling).
4. Transmit Delay
This is the time to convert the TXD data to the specified
frequency (FSK) for transmission. It is specified as the delay
from the 50% point of TXD to the output frequency reaching
50% of its deviation.
5. Receive Mode to Valid Transmit Data (t7 – see Fig. 3)
This is the cumulative minimum time taken to:
a. switch from receive to transmit mode, b. Transmit to PA
on delay (RX/TX to PA switch-on delay that must be
allowed between switching from receive to transmit and
turning on the PA in order for sufficient energy to be built
up in the transmit chain before the PA is switched on),
c. Switch on PA and d. Transmit delay
12.Receiver Max. Input Signal
This is defined for all channels as the maximum receiver
input signal level for a 10−5 bit error rate.
13. Receiver Data Bit Period (t16 – see Fig. 8)
6. Transmitter Modulation (Data onto Carrier)
Spectrally shaped Continuous Phase Frequency Shift
Keying, spectrum-compliant with FCC 15.247. The DE6003
uses Spread Spectrum communication employing Frequency
Hopping with spectrally shaped CPFSK as the modulation
format. Spectral shaping is achieved with a Gaussian
approximation pre-modulation filter. 90% of the power is within
1MHz bandwidth.
Data bit period (t16) is the nominal time between each
successive data bit.This period is subject to jitter on
receive and will be continually changing within the bit
period specification.
The DE6003 is configured for 625 kb/s and data run length
of contiguous ‘0’s or ‘1’s limited to 16 or less; any deviation
from this may result in a lowering of sensitivity. The
received RXD data stream will meet the bit width
restrictions for ‘1’s and ‘0’s as defined in Table 7. This is
referenced to the nominal centre of a bit period. Two bit
width measurements are used to determine the correct
operation of the demodulation circuitry, the first for pseudo-
random data and the second to measure the effects of
continuous patterns of 16 ‘1’s followed by a single ‘0’ and
of 16 ‘0’s followed by a single ‘1’.
7. Power On to Transmit Time
This is the time from VCC being applied to the start of
transmission of valid data at the antenna port. This value
is very dependent on the power supply used, as all the
decoupling capacitors on the DE6003 have to be
charged and this energy must be supplied by the power
supply.
NOTE: Received data (RXD) is considered valid when
these specifications have been met.
8. Standby to Transmit (t9)
This is the time from standby to the start of transmission of
valid data at the antenna port.
9
DE6003
14.Receive Delay (t18)
As measured for 50% of the change of input frequency de-
viation at either antenna port to the output on the RXD pin (9) of
the 40 way connector.
3·0
2·5
2·0
1·5
1·0
0·5
0
15.Frequency Hop Time to Valid Received Data (t19 –
see Figs. 6 and 7)
This is specified as the time from the rising edge of LOADB
to data being within the bit period specification.
(see note 13).
16.Transmit to Valid Received Data (t20 – see Fig. 3)
Transmit to valid received data (t20) is specified as the
time from the rising edge of RX/TX (this assumes that the
PA has been instructed to turn off (PAOFF low) and PA
fall time allowed to elapse before the rising edge of
RX/TX) to data being within the edge jitter requirements.
2120
2100
280
260
240
220
0
INPUT SIGNAL (dBm)
17.RF Burst to Valid Data (t21)
RF burst to valid data (t21) is specified as the time from
the start of a valid RF burst of data to valid data at RXD
being within the bit period specification.
Fig. 9 Typical RSSI response
LOADB to valid RSSI, when the RSSI output is within 10%
of its final value.
18.Time to Valid Data after Antenna Selection (t22)
Time to valid data after antenna selection (t22) is speci-
fied as the time from the change of ANTSEL line to data
being within the bit period specification.
25.Transmit Mode to Receive Valid RSSI
(t24 – see Fig. 3)
This is specified as the delay from the rising edge of
RX/TX to valid RSSI, when the RSSI output is within 10%
of its final value.
19.Channel Rejection (Modulated)
The receiver selectivity is the ratio of the interfering signal
to wanted signal power levels at which the Bit Error Rate
on the wanted signal is degraded to 1025. The wanted
signal is applied at 10dB above the measured sensitivity
level using a PRBS data pattern. The interferer is modu-
lated by a different PRBS data pattern with the same de-
viation as the wanted signal.The interferer is then in-
26.Time to Valid RSSI after Antenna Selection (t26)
Time to valid RSSI after antenna selection (t26)is
specified as the time from the change of ANTSEL line to
the time at which the RSSI output is within 10% of its final
value.
creased in level until the BER as measured on the wanted
5
channel degrades to 102
.
27.Receiver Conducted Emissions
This is the rejection to unwanted signals and is measured
at 62, 63 and 610 MHz from the selected channel.
These are specified as the emissions measured, at either
antenna port (terminated with 50Ω), with the transceiver
in receive mode.
20.Channel Selectivity (Unmodulated)
Minimum rejection of signals at a frequency offset of
61·5MHz from the wanted signal, as defined in Table 7.
28.Power Off to Receive Valid Data/RSSI (t27)
This is the time from VCC being applied to the reception of
valid data being within the edge jitter requirements and
when RSSI output is within 10% of its final value.
These timing values are very dependent on the power
supply used, as all the decoupling capacitors on the
DE6003 have to be charged and this energy must be
supplied by the power supply.
21.Receiver Spurious Rejection
Minimum rejection of signals in the bands below 1·8GHz
and above 3·3GHz.All spurious responses better than the
value defined in Table 7.
22. Receive Signal Strength Indicator (RSSI)
The RSSI output should be used for relative measure-
ment purposes only. The output, which is a measure of
the second IF energy level, is neither calibrated for a given
input signal strength nor to take account of production tol-
erance variation of the receiver’s gain and losses. Typical
RSSI response is shown in Fig. 9.
29.Standby to Receive Valid Data/RSSI (t28)
This is the time from STANDBY going high to the
reception of valid data being within the edge jitter require-
ments to the time at which the RSSI output is within 10%
of its final value.
23.RSSI Delay
30.Frequency Stability
This is measured for 50% changed input amplitude at
either antenna port to the time at which the RSSI output
(pin 31 on the 40-way connector) is within 10% of its final
value.
In order to be able to demodulate data in all specified
environmental conditions the 10MHz reference oscillator
frequency stability is as specified in Table 7.
31.Transmitter In Band Spurious Emissions
These are emissions in the transmitter output which are
in the frequency range of 2·4 to 2·5GHz.
24.Frequency Hop Time to Valid RSSI (t23 – see Fig. 6)
This is specified as the delay from the rising edge of
10
DE6003
MECHANICAL INFORMATION
Outline Drawing
Please note that outline drawing M50633 A2 with toleranced dimensions is available on request.
12·20
69·85
3·18
4 FIXING HOLES
3·6 DIA. (SEE FIG.12)
CONNECTED TO GROUND
1
ANT2
ANT1
40-WAY CONNECTOR
50·8
44·45
29·58
14·87
7·94
63·75
88·9
3·18
5·74
4·8
1·14
MAXIMUM
COMPONENT
HEIGHT
COMPONENT WIRE
DIMENSIONS ARE IN MILLIMETRES
Fig. 10 DE6003 outline drawing
40-Way Connector
The 40-way connector on the DE6003 board is:
AMP: AMPMODU 50/50 grid, Part Number 104655-5
The mating receptacle connector is:
6mm
AMP: AMPMODU 50/50 grid, Part Number 104652-4
The combined mated height of the connector pair is 0.250in
(6.35mm).
FIXING
AREA
Antenna Connectors
3·6mm
6mm
For the interface of each antenna, the connector is:
RADIALL-TRANSRADIO, MMS Series surface mount coaxial
connector, Part Number R209 406.
The mating connector and cable assembly is: RADIALL-
TRANSRADIO, Part Number A209 080 500 XXX (XXX = the
length in mm of the cable)
or 3M ELECTRONIC PRODUCTS DIVISION, Part Number
980028-017-XXX (XXX = the length of the cable in inches).
The antenna ports are designed for 50V impedance. It is
advisable to terminate an unused antenna port with a 50V load,
should only one antenna be used.
Fig. 11 Permissible fixing area for all 4 holes
11
DE6003
HEADQUARTERS OPERATIONS
GEC PLESSEY SEMICONDUCTORS
Cheney Manor, Swindon,
Wiltshire SN2 2QW, United Kingdom.
Tel: (01793) 518000
CUSTOMER SERVICE CENTRES
●
FRANCE & BENELUX Les Ulis Cedex Tel: (1) 69 18 90 00 Fax : (1) 64 46 06 07
●
GERMANY Munich Tel: (089) 3609 06-0 Fax : (089) 3609 06-55
●
ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993
●
JAPAN Tokyo Tel: (3) 5276-5501 Fax: (3) 5276-5510
Fax: (01793) 518411
●
NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 7023.
●
SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872
SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
TAIWAN, ROC Taipei Tel: 886 2 5461260 Fax: 886 2 7190260
UK, EIRE, DENMARK, FINLAND & NORWAY
Swindon Tel: 01793 518527/518566 Fax : 01793 518582
GEC PLESSEY SEMICONDUCTORS
P.O. Box 660017
1500 Green Hills Road,
Scotts Valley, CA95067-0017
United States of America.
Tel (408) 438 2900
●
●
●
These are supported by Agents and Distributors in major countries world-wide.
© GEC Plessey Semiconductors 1995 Publication No. DS3506 Issue No. 7.3 June 1995
TECHNICAL DOCUMENTATION – NOT FOR RESALE. PRINTED IN UNITED KINGDOM
Fax: (408) 438 5576
This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded
as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. The Company
reserves the right to alter without prior notice the specification, design or price of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any
guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information
and to ensure that any publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose failure to perform may result in significant injury
or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request.
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