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RF3322

Part Number	RF3322
Manufacturer	RF Micro Devices
Description	CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER
Published	Apr 16, 2005
Detailed Description	Preliminary RF3322 CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER 3 Typical Applications • Euro-DOCSIS/DOCSIS Cable Mo...
Datasheet	RF3322 PDF File

Overview

Preliminary RF3322 CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER 3 Typical Applications • Euro-DOCSIS/DOCSIS Cable Modems • CATV Set-Top Boxes • Telephony Over Cable • Home Networks • Automotive/Mobile Multimedia • Coaxial and Twisted Pair Line Driver 3 0.
157 0.
150 0.
0098 0.
0040 The RF3322 is a variable gain amplifier for use in CATV reverse path (upstream) applications.
It is DOCSIS-compliant for use in cable modems.
The gain control covers a 58dB range and is serially programmable via three-wire digital bus for compatibility with standard baseband chipsets.
Amplifier shutdown and transmit disable modes are software- and hardware-controlled.
The device is placed into sleep mode via the serial control bus.
The device operates over the frequency band of 5MHz to 65MHz for use in current U.
S.
and European systems.
The amplifier delivers up to 60dBmV at the output of the balun.
Gain is controllable in accurate 1dB steps.
The device is provided in an industry-standard QSOP-20 package.
Optimum Technology Matching® Applied 0.
0098 0.
0040 0.
340 0.
333 0.
025 0.
244 0.
228 0.
0688 0.
0532 Dimensions in inches.
8° MAX 0° MIN 0.
050 0.
016 0.
010 0.
006 NOTES: 1.
Shaded lead is Pin 1.
2.
All dimensions are excluding mold flash and protrusions.
3.
Lead coplanarity: 0 to 0.
004 max.
4.
Deviation from package center and leadframe center: 0.
004 max.
5.
Misalignment from top and bottom package centers: 0.
004 max.
6.
End flash not to exceed 0.
006 per side.
Package Style: QSOP-20 üSi Bi-CMOS GND 1 VCC1 2 Si BJT GaAs HBT SiGe HBT GaAs MESFET Si CMOS Features • Single 5V Supply • Differential Input and Output • -30dB to +28dB Voltage Gain Range • 5MHz to 65MHz Operation • Sophisticated Power Management • DOCSIS 1.
1 RF Compliant 20 GND2 19 VCC2 18 TXEN Power Control GND 3 GND1 4 VIN+ 5 VINGND CS 6 7 8 Gain Control and Serial Bus 17 NC 16 VOUT+ 15 VOUT14 RAMP 13 NC 12 SHDN 11 GND Ordering Information RF3322 RF3322 PCBA Cable Reverse Path Programmable Gain Amplifier Fully Asse...

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