U2891B-MFS [TEMIC]
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| 型号： | U2891B-MFS |
| 厂家： | 
TEMIC SEMICONDUCTORS |
| 描述： | 暂无描述 光电二极管 |
| 文件： | 总6页 (文件大小：61K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
U2891B
TELEFUNKEN Semiconductors
2.5 GHz Quadrature Up-Converter
Description
The U2891B is a silicon monolithic IC made with TELE- ulator and mixer. The RF ports are single ended and the
FUNKEN’s advanced UHF process. The IC consists of a device can be operated adjustment free, but for optimiza-
500 MHz I/Q quadrature modulator and a 2.5 GHz mixer. tion also two pins for phase adjustment are provided.
Both parts can be connected via an external filter in order These features and the double conversion concept of
to suppress harmonics and spurious products. The device U2891B make this device perfectly suited for all digital
features 3 V operation, a low current consumption and radio applications from 900 MHz up to 2.5 GHz (e.g.,
furthermore two separate power-down functions for mod- GSM, DCS 1800, JDC, PHP and WLAN).
Features
Benefits
D Low power consumption: 25 mA / 3 V
D Extended talk time due to increased battery life
(typical at –8 dBm output level)
D Few external components results in cost and board
D 2.5 GHz output frequency
space saving
D Excellent sideband suppression by means of duty D Adjustment free, hence saves time and cost
cycle regeneration and 90° phase control
D One TX Platform for different systems
D Separate power-down mode for modulator and mixer
D Reduced costs and space for battery (3-V operation)
D Low LO input level: –10 dBm (typical)
D LO and RF port 50-W single-ended
Case: SSO-24 package
Ordering Information:
U2891B-AFS, U2891B-AFSG3 (see page 5)
Block Diagram
PD
PD
GND
1
S
IF
V
GND
24
IF
RF
S
6
14 13
8, 21, 20
2
3
BB
BB
Ai
Voltage
regulator
Ai
LO 1
LO 1
4
5
RF
O
ö
Lo - Reg.
f / 2 f
0°
ȍ
Control
16
90°
50
22
23
BB
Bi
BB
Bi
10,17
GND
12
15
S
19
18
7
11
IF
9
94 8141 e
i
LP 1 LP 2
IF
O
IF
i
LO2
RF
50
Rev. A2: 04.10.1995
1 (6)
Advanced Information
U2891B
TELEFUNKEN Semiconductors
Pin Description
Pin
1
2
3
4
5
6
7
8
Symbol
GND
Function
Ground
GND
GND
1
2
3
4
5
6
7
8
9
24
23
22
21
20
BB
BB
Baseband input B inverse
Baseband input B
LO 1 input
LO 1 input inverse
Output symmetry IF
IF output
Ai
Ai
BB
BB
Ai
Bi
LO 1
LO 1
S
IF
BB
BB
Ai
Bi
IF
O
V
S
LO 1
LO 1
V
S
Supply voltage
LO 2 input
9
LO 2
GND
V
S
10
11
12
13
14
15
16
17
18
Ground
IF input
IF
IF
i
LP 1
LP 2
GND
S
IF
IF input inverse
Power-down RF
Power-down IF
Output symmetry RF
RF output
19
18
17
i
PD
RF
IF
PD
O
IF
S
RF
V
S
RF
O
GND
LP 2
Ground
LO 2
GND
RF
Filter and IF level
adjustment
Filter and IF level
adjustment
Supply voltage
Supply voltage
Baseband input B
Baseband input B inverse
Ground
O
16
15
19
LP 1
S
RF
10
11
12
20
21
22
23
24
V
V
S
IF
PD
14
13
i
IF
S
BB
BB
Bi
IF
PD
i
RF
Bi
94 8581 e
GND
Absolute Maximum Ratings
Parameters
Symbol
V , V
Value
6
Unit
V
Supply voltage
Input voltage
Pins 8, 20 and 21
S
SRF
Pins 2, 3, 4, 5, 9, 11, 12, 22 and 23
V
0 to V
125
V
i
S
Junction temperature
T
°C
°C
j
Storage temperature range
T
stg
–40 to +125
Operating Range
Parameters
Pins 8, 20 and 21
Symbol
Value
Unit
V
Supply voltage
V , V
2.7 to 5.5
–40 to +85
S
SRF
Ambient temperature range
T
amb
°C
Thermal Resistance
Parameters
SSO-24
Symbol
Value
140
Unit
K/W
Junction ambient
2 (6)
R
thja
Rev. A2: 04.10.1995
Advanced Information
U2891B
TELEFUNKEN Semiconductors
Electrical Characteristics: General Data
Parameters
Power supply
Test Conditions / Pin
Symbol
V V
Min.
2.7
Typ.
25
Max.
5.5
Unit
Supply voltage range
Supply current
Pin 8, 20 and 21
V
S, SRF
Pin 8, 20 and 21, V = 3 V
I , I
S SRF
mA
S
Electrical Characteristics: I/Q Modulator
Test conditions (unless otherwise specified): V = 3 V, T
= 25°C, referred to test circuit.
S
amb
System impedance Zo = 50 W, f
= 100 MHz, P
= –10 dBm.
LO1
LO1
Parameters
Test Conditions / Pin
= R
Symbol
Min.
Typ.
Max.
Unit
IF output
Pin 7
Output level
LO1 suppression
R
LP
P
IFo
– 8
40
dBm
dB
LO
RFo
Voltage standing wave ratio
Sideband suppression
VSWR
1.4
45
2
IFo
SBS
dB
IFo
Baseband inputs Pins 2, 3, 22 and 23
Input voltage range
(differential)
V
500
150
900
200
mVpp
BBi
Input impedance
Input frequency
Z
kW
BBi
f
MHz
BBi
LO1 input
Pins 4 and 5
Frequency range
f
30
500
–2
MHz
dBm
W
LOi
1)
Input level
P
Z
–10
tbd.
LOi
iLO
Input impedance
Duty cycle range
Power-down mode
Supply current
Settling time
DCR
0.4
0.6
LO1
V
v 0.5 V Pin 14
I
<5
10
mA
ms
PD
PD
C
C
100 pF,
t
S
SPD
= 100 pF, C
= 1 nF
LO
RFo
Power down voltage
Pin 14
“Power on”
V = 3.5 to 5.5 V
V = 2.7 to 3.5 V
S
V
V
V – 0.5
V +0.5
V +0.5
S
V
V
S
PON
S
S
V
S
“Power down”
1
V
PDN
Power down current
Power on
Power down
I
I
0.15
< 1
mA
mA
PON
PDN
Note:
1
)
Required LO level is a function of the LO frequency
Rev. A2: 04.10.1995
3 (6)
Advanced Information
U2891B
TELEFUNKEN Semiconductors
Electrical Characteristics: Mixer
V = 3 V, f
= 800 MHz, f = 100 MHz, P
= – 10dBm, system impedance Zo = 50 W, T
= 25 °C, reference
S
LO2
IF
LO2
amb
point Pin 10, unless otherwise specified
Parameters
Test Conditions / Pin
Symbol
Min.
Typ.
Max.
Unit
Operating frequencies
RF frequency
Pin 16
RF
50
50
2500
2500
MHz
MHz
O
O
LO2 frequency
Isolation
Pin 9
f
LO2
LO2 spurious at RF
Pin 9–16
IS
IS
-
–30
tbd.
dBm
dB
o
LO2 RFo
P
iLO
= –10 to 0 dBm
RF to LO2
Pin 16–9
o
RFo-LO2
Output level
Output compression point
Pin 16 R = R
CP – 1 dB
–7
dBm
Po
o
Input level
1)
Input compression point
Input LO2
Pins 11 and 12
Pin 9
CP – 1dB
–15
–10
–6
dBm
dBm
dBm
i
P
LO2
iIIP3
Third order input
Pins 11 and 12
P
1)
intercept point
Voltage standing wave ratio (VSWR)
Input IF
Pins 11 and 12
VSWR
tbd.
tbd.
tbd.
9
IFi
Input LO2
Pin 9
VSWR
LO2
Output RF
Pin 16
VSWR
RF
Conversion power gain
R = 50 W
L
PG
dB
dB
C
2)
Noise Figure (SSB)
P
iLO
= – 6 dBm
NF50
13
Power-down mode
Supply current
Settling time
V
v 0.5 V Pin 13
I
<5
10
mA
ms
PD
PD
C
C
100 pF,
t
S
SPD
= 100 pF, C
= 1 nF
LO
RFo
Power down voltage
Pin 13
“Power on”
V = 3.5 to 5.5 V
V = 2.7 to 3.5 V
S
V
V
V – 0.5
V +0.5
V +0.5
S
V
V
S
PON
S
S
V
S
“Power down”
1
V
PDN
Power down current
Power on
Power down
I
I
0.15
< 1
mA
mA
PON
PDN
Note:
1
)
with 50 W termination resistor at Pin 11
without termination resistor
2)
4 (6)
Rev. A2: 04.10.1995
Advanced Information
U2891B
TELEFUNKEN Semiconductors
Ordering Information
Extended Type Number
U2891B-AFS
Package
SSO24
SSO24
Remarks
Rail, MOQ 690 pcs.
Tape & reel, MOQ 4000 pcs.
U2891B-AFSG3
Dimensions in mm
Package: SSO-24
95 9943
Rev. A2: 04.10.1995
5 (6)
Advanced Information
U2891B
TELEFUNKEN Semiconductors
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
6 (6)
Rev. A2: 04.10.1995
Advanced Information
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