STB5610E [STMICROELECTRONICS]
RF/MICROWAVE DOWN CONVERTER, TQFP-48;
| 型号： | STB5610E |
| 厂家： | 
ST |
| 描述： | RF/MICROWAVE DOWN CONVERTER, TQFP-48 射频 微波 |
| 文件： | 总13页 (文件大小：382K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STB5610
GPS RF FRONT-END IC
PRELIMINARY DATA
• ONE CHIP SYSTEM TO INTERFACE GPS
ANTENNA TO GPS MICRO CONTROLLER
• ABLE TO SUPPORT ACTIVE AND PASSIVE
ANTENNA
• MINIMUM EXTERNAL COMPONENTS
• COMPATIBLE WITH GPS L1 SPS SIGNAL AND
GALILEO FREQUENCIES
• CMOS OUTPUT LEVELS
TQFP48
• 2.7 V .. 3.6 V SUPPLY VOLTAGE
• EMBEDDED LOW PHASE NOISE PLL
• ACTIVE ANTENNA SENSOR
ORDER CODE
BRANDING
STB5610
STB5610
• SMART CHIP ENABLE FUNCTION FOR POWER
CONSUMPTION OPTIMIZATION
• ESD PROTECTED
DESCRIPTION
The STB5610, using ST Microelectronics RF Bipolar
technology, implements a Global Positioning System
RF front-end. The chip provides down conversion
from the 1575.42 MHz GPS (L1) signal to 4.092 MHz
Output signal. The integrated PLL with on-chip
reference oscillator uses a low cost 16.368 MHz
crystal. No TCXO is required.
PIN CONNECTION
47 46 45 44 43
41 40 39 38 37
48
42
36
35
34
33
32
31
30
29
28
27
26
25
Vcc_Logic2
Vcc_XTAL
Vcc_Logic
LF
1
2
Gnd
DATA
3
CLK
4
Vcc_VCO
Gnd_Driver
Vcc_Driver
5
Gnd
6
TNK1
Gnd_Loic
Vcc_Logic
AS1
7
TNK2
Gnd
Gnd
IF1+
IF1-
8
9
AS2
10
11
12
As_out
GC
Gnd
13 14 15 16 17 18 19 20 21 22 23 24
December, 15 2003
1/11
STB5610
PIN CONFIGURATION
PIN
1
Symbol
Vcc_XTAL
Vcc_Logic
LF
Typ. DC Bias
Description
Power supply
Power supply
Loop filter
Power supply
Ground
External Circuit
2
3
4
Vcc_VCO
Gnd
5
6
TNK1
Tank Input
Tank Input
Ground
7
TNK2
8
Gnd
9
Gnd
Ground
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IF1+
Mixer Output
Mixer Output
Ground
IF1-
Gnd
Gnd_RF
RF+
Ground
RF amp. input
RF amp. input
Ground
RF-
Gnd_RF
Vcc_ RF
LNA_Out+
LNA_Out-
Vcc_LNA
Gnd_LNA
LNA_in+
LNA_in-
Gnd_LNA
Power supply
LNA output
LNA output
Power supply
Ground
LNA input
LNA input
Ground
2/11
STB5610
PIN CONFIGURATION
PIN
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Symbol
GC
Typ. DC Bias
Description
LNA Gain control
Antenna sensor output
Antenna sensor input
Vcc Antenna Supply
Power supply
Ground
External Circuit
AS_Out
AS2
AS1
Vcc_Logic
Gnd_Logic
Vcc_Driver
Gnd_Driver
CLK
Supply Voltage
Ground
Clock
DATA
Data
Gnd
Ground
Vcc_Logic2
CE2
Supply Voltage
Chip Enable (no data)
Chip Enable
Frequency Selector
Ground
CE
Fselect
Gnd_IF
IF2-
Lim. Amp. Output
Lim. Amp. Output
Ground
IF2+
Gnd_IF
Vcc_IF
Gnd_XTAL
XTAL_in
XTAL_out
Gnd_XTAL
Supply Voltage
Ground
Crystal Input
Crystal Output
Ground
3/11
STB5610
BLOCK DIAGRAM (GPS L1)
SAW Filter
LC Filter
LC Filter
Passive
Antenna
Data @ 4 MHz
CMOS levels
Two gain
LNA
RF Amp.
Mixer
D Latch Output buffer
1
ST Lim. amp.
2ND Lim. amp.
D
Q
CK
1.57 GHz
20 MHz
20 MHz
4 MHz
Gain
Select.
1.55 GHz
CLK @ 16MHz
CMOS levels
VCO
PLL
~
16.368 MHz
Quartz
16 MHz
CE
ASout
CE2
Loop
Filter
Freq.
select
ExternalTank
FUNCTIONAL DESCRIPTION
LNA section
VCO and PLL
The RF input signal is amplified by two gain levels Using external tank the VCO is able to provide
LNA. Using gain control pin the LNA gain is set to very low phase noise signal. Through the freq. se-
19 dB to support passive antenna or 10 dB to sup- lector pin the VCO signal is set at 1554.96 MHz
port active antenna. The LNA output signal is fil- and at 1571.328 MHz. The on-chip reference os-
tered by 1575.42 MHz SAW filter.
cillator uses a low cost 16.368 MHz crystal.
RF Amplifier plus mixer section
Antenna sensor circuitry
The 1575.42 MHz input signal, amplified by RF Integrated sensor circuitry is able to evaluate the
amp., is mixed with the VCO signal to generate a antenna current consumption; the Asout pin out-
differential 20.46MHz IF signal
put provides this info externally. Using external
sensing resistor of 10 Ohm if the antenna current
consumption is inside the range 10mA…40mA
(active antennas typical current consumption) the
Asout output logic level is High, if the antenna cur-
rent consumption is outside the above reported
range (passive antenna or problem on antenna
connection) the Asout output logic level is low.
IF section
Two LC filters at mixer output and at first limiting
output are used to suppress undesirable signals
and mixer products. The second stage limiting
amplifier is connected to a D-Type latch clocked
by 16.368MHz crystal oscillator signal. The effect
of sampling the 20.46MHz signal at 16.368MHz is
to create sub-sampling alias at 4.092MHz. This is
fed to the output level converter.
Chip enable
Using the CE pin it is possible to switch off all the
chip ( neither data nor clock available).
Using CE2 pin it is possible to disable the analog
portion of the chip (no data available) maintaining
the digital portion active (Clock available) optimiz-
ing the chip current consumption.
Output section
The output buffers perform level translation from
the internal ECL levels to CMOS output levels re-
ferred to ground. The Data signal changes during
the clock signal negative edge.
Power supplies
The STB5610, has been designed to support
from 2.7 V to 3.6 V supply voltage.
4/11
STB5610
ABSOLUTE MAXIMUM RATING
Symbol
Parameter
Value
Unit
Vcc
Supply voltage
5.9
V
o
Tj
Junction operating temperature
-40 to 125
C
THERMAL DATA
Symbol
Parameter
Value
Unit
o
Rthj-case Thermal resistance junction-case
TBD
C/W
o
ELECTRICAL CHARACTERISTICS (Vcc = 3+/-10%, Tcase= 25 C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
SUPPLY
Vcc
Supply voltage
Supply current
2.7
2.7
3.3
37
3.6
5.5
V
Icc
mA
Vcc Antenna
Supply
AS1
3.3 / 5
V
LNA
Gp
Pin GC at GND
Pin GC at Vcc
19
10
Power gain
Noise figure
Input IP3
dB
dB
Pin GC at GND
Pin GC at Vcc
3
10
NF
IIP3
Pin GC at GND
Pin GC at Vcc
-20
-5
dBm
Voltage Stat. Wave
Ratio
Z =50Ω
L
VSWRin
2.1
RF AMPLIFIER AND MIXER CHAIN
IIP3
NF
Input IP3
-19
5.5
50
dBm
dB
Ω
Noise Figure
Z
Input impedance
IN
Differential output
impedance
Z
1.4
1.575
30
ΚΩ
MHz
dB
OUT
fRF
G
Input signal RF
Voltage Convertion
Gain
FIRST LIMITING AMPLIFIER
G
Voltage Gain
60
dB
Differential output
impedance
Z
2.4
ΚΩ
OUT
5/11
STB5610
o
ELECTRICAL CHARACTERISTICS (Vcc = 3+/-10%, Tcase= 25 C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
SECOND LIMITING AMPLIFIER
G
Voltage Gain
30
dB
VCO (GPS LO frequency 1555MHz)
∆f = 1KHz, SSB (10KHz PLL
VCO
Phase noise
-60
dBc/Hz
closed loop bandwith)
OUTPUT BUFFER (square wave CMOS level)
V
High output voltage
Low output voltage
Vcc-0.4
0
Vcc
V
V
OH
V
0+0.4
OL
PHASE LOCKED LOOP
XTAL
Reference crystal
16.368
MHz
(The logic levels are TTL compatible)
INPUT CONTROL PINS TABLE
GC Pin (lna gain control pin)
CE Pin (Total chip enable pin)
Logic level Value
Logic level
Low
Value
Low
Switch-off
Switch-on
Max Gain
Min Gain
High
High
CE2 Pin (Analog portion enable pin)
FSELECT (Frequencies Selector Pin)
Logic level
Low
Value
Logic level
Low
Value
Switch-off
Switch-on
GPS frequency
Galileo frequency
High
High
OUTPUT CONTROL PINS TABLE
The Asout pin output provides information on Antenna current consumption
*
ASout Pin (Antenna sensor pin)
Logic level
Value
Low**
Iant<10mA
Iant.>40mA
High**
10mA<Iant<40mA
* It is referred to external sensing resistor of 10 OHm
Application requiring higher or lower current threshold should adjust the resistor value appropiately
** The logic levels are referred to STB5610 Supply Voltage
6/11
STB5610
APPLICATION BOARD SCHEMATIC (ACTIVE ANTENNA)
_
GND LNA 24
CE
CE
FSE LE C
GND _I
2
3
7
1
L NAin-
NAin+
38
23
22
L
T
39
_
GND LNA
F
40
21
V
c
cLNA
NAOUT
L NAOUT
IF2-
IF2
GND
4
1
20
+
L
_D
4
2
19
18
_IF
43
44
Vcc
IF
VccRF 17
_
_
GND_RF
GND XT A
L
4
5
16
15
_
RF-
46
XT AL IN
RF+
47
14
XTAL_OUT
GND_RF
4
8
13
GN D XT A
L
1
5
7/11
STB5610
APPLICATION BOARD LAYOUT (ACTIVE ANTENNA)
70.4 mm
8/11
STB5610
BILL OF MATERIALS
Q.ty
1
1
2
1
4
2
2
1
3
1
1
1
4
7
3
5
1
1
1
1
1
1
1
1
1
2
1
1
1
Reference Designator
Value
470 ohm
6.2K ohm
1K ohm
Manufacturer
NEOHM (0603)
NEOHM (0603)
NEOHM (0603)
NEOHM (0603)
NEOHM (0603)
NEOHM (0603)
R1
R2
R3, R5
R6
10 ohm
R4,R7,R8,R9
10K ohm
100 ohm
56pF
R10,R11
C1,C2
Murata (series GRM18)
Murata (series GRM18)
Kemet (series T491) Case A
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Murata (series GRM18)
Coilcraft (series 1008CS)
Murata (series LQP18M)
Coilcraft (series 1008CS)
Murata (series LQP18M)
Murata (series LQW18)
Murata (series LQP18M)
Murata (series LQP18M)
ST
C4
12pF
C7, C8, C9
1µF (electrolytic)
2.2nF
C10
C11
4.7nF
C12
10nF
C16,C19
22pF
C3,C5, C6,C13,C14,C21,C23
100nF
C18, C20,C26
1nF
C15,C17,C22,C25,C27
100pF
C28
L1
1.8pF
4.7µH
L2
6.2nH
L3
2.7µH
L4
4.7nH
L5
100nH
L6
27nH
L7
6.2nH
U1
U2, U3
J1
STB5610
L4931ABD33
8+8 pin Connector
SMA Connector (female)
NSVA352
ST
Various
J2
Johnson
F1
NJR Corporation
(1)
1
1
1
F2
D1
D2
Murata
DFC21R57P002HHA
SMV1405-079
SMV1405-079
Skyworks
Skyworks
DHF32UM-
1SJ(16.368MHz)
1
Y1
Rakon
(1)
This Part Number will be changed in DFCB21G57LDJAB-TT1 by MURATA
9/11
STB5610
MECHANICAL DATA
mm
DIM.
MIN.
TYP.
MAX
1.60
0.15
1.45
9.25
7.1
A
A1
A2
D
0.05
1.35
8.75
6.9
1.40
9.00
7.00
9.00
7.00
0.60
0.5
D1
E
8.75
6.9
9.25
7.1
E1
L
0.5
0.75
e
b
0.17
0.22
0.27
0.08
0.08
ccc
ddd
TETA
o
o
0
7
Note: L is measured at gage plane (at 0.25 above the seating plane)
10/11
STB5610
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is registered trademark of STMicroelectronics
2003 STMicroelectronics - All Rights Reserved
All other names are the property of their respective owners.
STMicroelectronics GROUP OF COMPANIES
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11/11
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NRND
GPS RF FRONT-END IC
Application Specific for GPS|Receivers for GPS|RF Front-end Receivers
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NRND
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GPS RF FRONT-END IC
Application Specific for GPS|Receivers for GPS|RF Front-end Receivers
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