參數(shù)資料
型號(hào)： RF3404PCBA
廠商： RF Micro Devices, Inc.
英文描述： DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER MODULE
中文描述： DUAL-BAND/TRI-MODE CDMA的低噪聲放大器/混頻器模塊
文件頁(yè)數(shù)： 6/12頁(yè)
文件大小： 202K
代理商： RF3404PCBA
Preliminary
8-38
RF3404
Rev A1 010918
8
F
Pin
1
Function
PCS LO
OUT
CELL LO
OUT
GND
MIXER
GAIN
Description
PCS LO output. Internal DC block.
Interface Schematic
2
Cellular LO output. Internal DC block.
3
4
Low-inductance ground required.
Logic input. Controls switch around mixer preamp. High selects maxi-
mum mixer gain.
5
6
7
8
GND
GND
GND
VCC2
Low-inductance ground required.
Low-inductance ground required.
Low-inductance ground required.
PCS LNA VCC. External bypass capacitor between 10pF and 47nF
required.
Low-inductance ground required.
9
10
11
GND
GND
Low-inductance ground required.
CELL LNA
IN
Cellular LNA input. Internally matched to 50
. DC-blocking internal to
module.
12
PCS LNA IN
PCS LNA input. Internally matched to 50
. DC-blocking internal to
module.
13
14
15
16
17
18
19
20
21
22
GND
GND
GND
VCC1
GND
GND
GND
GND
GND
CDMA IF+
Low-inductance ground required.
Low-inductance ground required.
Low-inductance ground required.
Cellular LNA VCC. External bypass may be required.
Low-inductance ground required.
Low-inductance ground required.
Low-inductance ground required.
Low-inductance ground required.
Low-inductance ground required.
CDMA IF output. Open collector. “Current combiner” IF interface to
SAW filter recommended.
23
CDMA IF-
CDMA IF output. Open collector. “Current combiner” IF interface to
SAW filter recommended.
See pin 22.
MIX GAIN
CELL LNA IN
V
CC
PCS LNA IN
V
CC
CDMA+
CDMA-
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