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參數(shù)資料
| 型號： | RF3146PCBA |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | QUAD-BAND GSM850/GSM900/DCS/PCS POWER AMP MODULE |
| 中文描述： | 四頻GSM850/GSM900/DCS/PCS功率放大器模塊 |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 317K |
| 代理商： | RF3146PCBA |
Preliminary
2-498
RF3146
Rev A7 040812 W3
Pin
31
Function
DCS/PCS
OUT
GND
NC
GND
VCC2
DCS/PCS
NC
Description
RF output for the DCS/PCS bands. This is a 50
output. The output
matching circuit and DC-block are internal to the package.
Interface Schematic
See pin 6.
32
33
34
35
Internally connected to the package base.
Internal circuit node. Do not externally connect.
Internally connected to the package base.
Controlled voltage input to the DCS/PCS driver stage. This voltage is
part of the power control function for the module. This node must be
connected to VCC OUT. This pin should be externally decoupled.
No internal connection. Connect to ground plane close to the package
pin.
RF input to the DCS/PCS band. This is a 50
output.
See pin 2.
36
37
DCS/PCS IN
38
NC
No internal connection. Connect to ground plane close to the package
pin.
Controlled voltage on the GSM and DCS/PCS preamplifier stages. This
voltage is applied internal to the package. This pin should be externally
decoupled.
39
VCC1
DCS/PCS
40
BAND SEL
Allows external control to select the GSM or DCS/PCS bands with a
logic high or low. A logic low enables the GSM bands, whereas a logic
high enables the DCS/PCS bands.
41
TX ENABLE
This signal enables the PA module for operation with a logic high. Both
bands are disabled with a logic low.
42
VBATT
Power supply for the module. This pin should be externally decoupled
and connected to the battery.
Power supply for the module. This pin should be externally decoupled
and connected to the battery.
Internal circuit node. Do not externally connect.
43
VBATT
44
45
NC
VRAMP
Ramping signal from DAC. A simple RC filter may be required depend-
ing on the selected baseband.
46
VCC1 GSM
Internally connected to VCC1 (pin 39). No external connection
required.
Ground connection for the GSM preamplifier stage. Connect to ground
plane close to the package pin.
RF input to the GSM band. This is a 50
input.
See pin 39.
47
GND1 GSM
48
GSM850/
GSM900 IN
GND
See pin 37.
Pkg
Base
Connect to ground plane with multiple via holes. See recommended
footprint.
VCC1
RF IN
VCC1
GSM CTRL
DCS CTRL
BAND SEL
TX EN
TX EN
VBATT
TX ON
-
+
VRAMP
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