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Numéro de référence | RF9957 | ||
Description | CDMA/FM RECEIVE AGC AND DEMODULATOR | ||
Fabricant | RF Micro Devices | ||
Logo | |||
1 Page
7
Typical Applications
• CDMA/FM Cellular Systems
• CDMA PCS Systems
• Wireless Local Loop Systems
RF9957
CDMA/FM RECEIVE AGC AND DEMODULATOR
• Spread-Spectrum Cordless Phones
• High Speed Data Modems
• General Purpose Digital Receivers
Product Description
The RF9957 is an integrated complete IF AGC amplifier
and Quadrature Demodulator designed for the receive
section of dual-mode CDMA/FM cellular and PCS appli-
cations. It is designed to amplify received IF signals, while
providing 100dB of gain control range, and demodulate to
baseband I and Q signals. Noise Figure, IP3, and other
specifications are designed to be compatible with the IS-
98 and J-STD-018 Interim Standard for CDMA cellular
communications. The IC is manufactured on an advanced
15GHz FT Silicon Bipolar process, and is packaged in a
standard miniature 24-lead plastic SSOP package.
0.157
0.150
1
0.344
0.337
0.2440
0.2284
8°MAX
0°MIN
0.012
0.008
0.025
0.0098
0.0040
0.0688
0.0532
0.050 0.0098
0.016 0.0075
Optimum Technology Matching® Applied
üSi BJT
GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
CDMA IN+ 4
CDMA IN- 5
IN SEL 14
Input
Select
FM IN+ 8
FM IN- 9
23
Gain
Control
19
Band Gap
Reference
10 24 18
Quad.
÷2
16 Q OUT+
15 Q OUT-
13 LO+
12 LO-
21 I OUT+
22 I OUT-
Package Style: SSOP-24
Features
• Supports Dual Mode Operation (CDMA
and FM)
• Digitally Controlled Power Down Mode
• 2.7V to 3.3V Operation
• Quadrature LO Divider
• IF AGC Amp with 100dB Gain Control
Ordering Information
RF9957
CDMA/FM Receive AGC and Demodulator
RF9957 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
7
Rev C11 010622
7-27
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Pages | Pages 10 | ||
Télécharger | [ RF9957 ] |
No | Description détaillée | Fabricant |
RF9957 | CDMA/FM RECEIVE AGC AND DEMODULATOR | RF Micro Devices |
RF9957PCBA | CDMA/FM RECEIVE AGC AND DEMODULATOR | RF Micro Devices |
RF9958 | CDMA/FM TRANSMIT MODULATOR/ IF AGC/ AND UPCONVERTER | RF Micro Devices |
RF9958PCBA | CDMA/FM TRANSMIT MODULATOR/ IF AGC/ AND UPCONVERTER | RF Micro Devices |
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TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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