RF3320 데이터 시트보기 (PDF) - RF Micro Devices

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RF3320

CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER

RF Micro Devices 

Preliminary

3

RF3320

CABLE REVERSE PATH

PROGRAMMABLE GAIN AMPLIFIER

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

Product Description

3.90

+ 0.10

The RF3320 is a variable gain amplifier for use in CATV

reverse path (upstream) applications. It is DOCSIS-com-

pliant for use in cable modems. The gain control covers a

4.90

58dB range and is serially programmable via three-wire

+ 0.20

digital bus for compatibility with standard baseband

chipsets. Amplifier shutdown and transmit disable modes

are software- and hardware-controlled. The device is

6.00

+ 0.20

placed into software-shutdown 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

8° MAX

0° MIN

systems. The amplifier delivers up to 60dBmV at the out-

put of the balun. Gain is controllable in accurate 1dB

0.60

steps. The device is provided in a thermally enhanced,

+ 0.15

exposed die flag package.

0.25

+ 0.05

0.65

1.40

+ 0.10

-A- 0.05

+ 0.05

Note 3

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.

EXPOSED DIE

FLAG

3.302

0.24

0.20

2.286

Optimum Technology Matching® Applied

Si BJT

üSi Bi-CMOS

GaAs HBT

SiGe HBT

GaAs MESFET

Si CMOS

SHDNB 1

TX EN 2

NC 3

VIN 4

VINB 5

VCC 6

VCC 7

RAMP 8

Power

Control

Gain Control

and Serial Bus

16 GND

15 NC

14 NC

13 VOUT

12 VOUTB

11 SDA

10 CS

9 SCLK

Package Style: SSOP-16 EDF Slug

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

Ordering Information

RF3320

Cable Reverse Path Programmable Gain Amplifier

RF3320 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

Rev A10 010514

3-27

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