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RF3321

Part Number	RF3321
Manufacturer	RF Micro Devices
Description	REVERSE PATH HIGH OUTPUT POWER PROGRAMMABLE GAIN AMPLIFIER
Published	Apr 16, 2005
Detailed Description	Preliminary RF3321 REVERSE PATH HIGH OUTPUT POWER PROGRAMMABLE GAIN AMPLIFIER 2 Typical Applications • Euro-DOCSIS/DOC...
Datasheet	RF3321 PDF File

Overview

Preliminary RF3321 REVERSE PATH HIGH OUTPUT POWER PROGRAMMABLE GAIN AMPLIFIER 2 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 -A- The RF3321 is a variable gain amplifier for use in CATV reverse path (upstream) applications.
It is designed to be DOCSIS-compliant for use in cable modems.
The gain control covers a 56dB range and is serially programmable via three-wire digital bus for compatibility with standard baseband chipsets.
Amplifier shutdown and transmit disable modes are hardware-controlled.
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 +69dBmV at the output of the balun.
Gain is controllable in accurate 1dB steps.
The device is provided in a thermally enhanced, exposed die flag package.
3.
90 + 0.
10 0.
25 + 0.
05 0.
05 + 0.
05 Note 3 4.
90 + 0.
20 0.
65 NOTES: 1.
Shaded lead is pin 1.
2.
Lead coplanarity - 0.
10 with respect to datum "A".
3.
Lead standoff is specified from the lowest point on the package underside.
6.
00 + 0.
20 1.
40 + 0.
10 EXPOSED DIE FLAG 8° MAX 0° MIN 3.
302 0.
60 + 0.
15 0.
24 0.
20 2.
286 Optimum Technology Matching® Applied Package Style: SSOP16 EDF Slug üSi Bi-CMOS SHDNB TX EN NC VIN VINB VCC1 VCC1 RAMP 1 2 3 4 5 6 7 8 Si BJT GaAs HBT SiGe HBT GaAs MESFET Si CMOS Features • Differential Input and Output • 31dB Maximum Voltage Gain • -25dB Minimum Voltage Gain • 5MHz to 65MHz Operation • Sophisticated Power Management • DOCSIS 1.
1 RF Compliant 16 Power Control GND NC NC VOUT VOUTB SDA CS SCLK 15 14 13 12 11 Gain Control and Serial Bus 10 9 Ordering Information RF3321 RF3321 PCBA Reverse Path High Output Power Programmable Gain Amplifier Fully Assembled Evaluation Board Tel (336) 664 1233 Fax (336) 664 0454 http://www.
rfmd.
com Functional Block Diagram RF Micro Devices, Inc.
7628 Thorndike Road Gr...

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