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PDF RF9938 Data sheet ( Hoja de datos )
| Número de pieza | RF9938 | |
| Descripción | PCS UPCONVERTER/BPSK MODULATOR | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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RF9938
6 PCS UPCONVERTER/BPSK MODULATOR
Typical Applications
• CDMA/TDMA/DCS1900 PCS Systems
• PHS 1500/ WLAN 2400 Systems
• General Purpose Upconverter
• BPSK Modulation
• Micro-Cell PCS Base Stations
• Portable Battery-Powered Equipment
Product Description
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 IP3. The output stage is a class-B,
push-pull configuration to reduce the overall current and
still provide a good 50Ω 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.
0.196
0.189
8° MAX
0° MIN
0.157
0.150
0.244
0.229
0.034
0.016
0.018
0.014
0.008
0.004
-A-
0.050
Dimensions in mm
0.068
0.053
0.009
0.007
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity -
0.005 with respect to datum "A".
Optimum Technology Matching® Applied
Si BJT
üGaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
IF+ 1
IF- 2
GND 3
LO+ 4
8 RF OUT
7 VCC
6 GND
5 LO-
Package Style: SOIC-8
Features
• Supports Dual Mode Operation
• +8dBm Output Intercept Point
• Single 3.6V Power Supply
• Internally Matched Inputs and Outputs
• Buffered Output
• Double-Balanced Mixer
Ordering Information
RF9938
PCS Upconverter/BPSK Modulator
RF9938 PCBA Fully Assembled Evaluation Board
Functional 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
6
Rev A3 010720
6-61
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet RF9938.PDF ] | |
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