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參數資料
| 型號： | RF9938PCBA |
| 廠商： | RF Micro Devices, Inc. |
| 英文描述： | PCS UPCONVERTER/BPSK MODULATOR |
| 中文描述： | 個人通訊變頻/的BPSK調制器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 46K |
| 代理商： | RF9938PCBA |
6-61
6
M
Produc t Desc ription
Ordering Information
Typic al Applic ations
Features
Func tional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching Applied
Si BJT
GaAs HBT
Si Bi-CMOS
SiGe HBT
GaAs MESFET
Si CMOS
1
2
3
4
8
7
6
5
IF+
IF-
GND
LO+
RF OUT
VCC
GND
LO-
RF9938
PCS UPCONVER T ER/BPS K MODULAT OR
CDMA/TDMA/DCS1900 PCS Systems
PHS 1500/ WLAN 2400 Systems
General Purpose Upconverter
BPSK Modulation
Micro-Cell PCS Base Stations
Portable Battery-Powered Equipment
The RF9938 is a complete upconverter designed for PCS
applications. The IC contains a double-balanced mixer
stage and an output buffer amplifier stage. This device
may also be used to directly BPSK modulate a carrier.
The mixer is a Gilbert cell with emitter degeneration resis-
tors to provide high IP
3
. The output stage is a class-B,
push-pull configuration to reduce the overall current and
still provide a good 50
output match. The unit operates
at 3.6V and is designed as part of the RFMD PCS CDMA
Chip Set, consisting of a Transmit IF AGC Amp, this
Transmit Upconverter, a Receive LNA/Mixer, and a
Receive IF AGC Amp.
Supports Dual Mode Operation
+8dBm Output Intercept Point
Single 3.6V Power Supply
Internally Matched Inputs and Outputs
Buffered Output
Double-Balanced Mixer
RF9938
RF9938 PCBA
PCS Upconverter/BPSK Modulator
Fully Assembled Evaluation Board
6
Rev A3 010720
0.244
0.229
0.157
0.150
0.018
0.014
0.050
0.068
0.053
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity -
0.005 with respect to datum "A".
Dimensions in mm
0.196
0.189
0.008
0.004
-A-
8° MAX
0° MIN
0.034
0.016
0.009
0.007
Pac kage S tyle: S OIC-8
相關PDF資料 |
PDF描述 |
|---|---|
| RF9957 | Multipole Connector |
| RF9957PCBA | CDMA/FM RECEIVE AGC AND DEMODULATOR |
| RF9958 | CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER |
| RF9958PCBA | CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER |
| RF9986 | PCS LOW NOISE AMPLIFIER/MIXER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| RF9957 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:CDMA/FM RECEIVE AGC AND DEMODULATOR |
| RF9957PCBA | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:CDMA/FM RECEIVE AGC AND DEMODULATOR |
| RF9958 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER |
| RF9958PCBA | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER |
| RF-9980P | 制造商: 功能描述: 制造商:undefined 功能描述: |
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