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參數(shù)資料
| 型號： | SA1920 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Dual-band RF front-end |
| 中文描述： | TELECOM, CELLULAR, RF FRONT END CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 X 1.40 MM, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 2/36頁 |
| 文件大?。?/td> | 215K |
| 代理商： | SA1920 |
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Philips Semiconductors
Product specification
SA1920
Dual-band RF front-end
2
1999 Mar 02
853–2057 20918
DESCRIPTION
The SA1920 is an integrated dual-band RF front-end that operates
at both cellular (AMPS, GSM and TDMA) and PCS/DCS (TDMA and
GSM) frequencies, and is designed in a 13 GHz f
T
BiCMOS
process—QUBiC1. The low-band is a combined low-noise amplifier
(LNA) and mixer. The LNA has a 1.7 dB noise figure at 881 MHz
with 17.5 dB of gain and an IIP3 of –5 dBm. The wide-dynamic
range mixer has a 10 dB noise figure at 881 MHz with 9.5 dB of gain
and an IIP3 of +5 dBm.
The high-band contains a receiver front-end, doubler and a high
frequency transmit mixer intended for closed loop transmitters. One
advantage of the high-band architecture is an image-rejection mixer
with over 30 dB of image rejection; thus, eliminating external filter
cost while saving board space. The system noise figure is 4.2 dB at
1960 MHz with a power gain of 23.5 dB and an IIP3 of –12.5 dB.
FEATURES
Low current consumption
Outstanding low- and high-band noise figure
Excellent gain stability versus temperature and supply
Image reject high-band mixer with over 30 dB of rejection
Increased low-band LNA gain compression during analog
transmission
LO input and output buffers
Frequency doubler
On chip logic for network selection and power down
Very small outline package
APPLICATIONS
800 to 1000 MHz analog and digital receivers
1800 to 2000 MHz digital receivers
Portable radios
Digital mobile communications equipment
PIN CONFIGURATION
G
SR01435
21
22
23
24
25
26
27
28
29
30
31
37
38
39
40
41
42
43
1
2
3
4
5
6
18
19
20
7
8
9
10
11
12
44
45
46
47
48
32
33
34
35
36
15
16
17
13
14
Tx ON
V
HIGH BAND IMAGE SET I
HIGH BAND LO INPUT
GND
GND
LOW BAND LO INPUT
GND
HIGH BAND IMAGE SET Q
N/C
X2 ON
N/C
GND
MIX IN
GND
Tx IF A
N/C
R
L
L
H
H
G
L
L
H
H
S
H
N
G
S
G
H
L
G
L
N
CC
VCC
VC
G
Tx IF B
GND
Tx A
Tx B
GND
VCC
Figure 1.
Pin Configuration
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
LQFP48
DESCRIPTION
VERSION
SOT313-2
SA1920
Plastic low profile quad flat package; 48 leads; body 7x7x1.4 mm
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