ACA2604 데이터 시트보기 (PDF) - ANADIGICS

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ACA2604

Fiber-to-the-Home RF Amplifier

ANADIGICS 

FEATURES

• 50 - 870 MHz Operating Frequency

• High Linearity: 65 dBc CTB/CSO (79 Chan.)

• Low Equivalent Input Noise: 4.5 pA/rtHz

• 22 dB Gain Adjust

• 400  Differential Input Impedance: No

Transformer Required for Interface to Photodiode

• Single +5 V Supply

• 5 mm x 5 mm x 1 mm Surface Mount Package

• RoHS Compliant Package

• Pin Compatible with the ACA2601

APPLICATIONS

• FTTH RF Amplifier Used in Conjunction With

Triplexer in Fiber-Coax Line Terminals

ACA2604

Fiber-to-the-Home RF Amplifier

Data Sheet - Rev 2.1

ACA2604

S29 Package

28 Pin QFN

5 mm x 5 mm x 1 mm

PRODUCT DESCRIPTION

The ANADIGICS ACA2604 amplifier for Fiber-to-the-

Home (FTTH) applications is intended to be used

in conjunction with the triplexer in fiber-coax line

terminals. The device is driven by, and amplifies the

output of, the video downstream path photodiode.

The high-impedance input of the ACA2604 eliminates

the need for a costly transformer usually needed to

interface to the photodiode, and a low equivalent input

noise level offers excellent sensitivity. The device

provides sufficient linearity to maintain low CTB and

CSO levels in full-bandwidth (132 channel) systems,

even across a wide gain adjustment range.

The ACA2604 is manufactured using ANADIGICS’s

proven MESFET technology that offers state-of-the-

art reliability, temperature stability and ruggedness.

The device operates from a single +5 V supply and

is offered in a 5 mm x 5 mm x 1 mm surface mount

package.

Supply

Attenuator

Control

Matching

Circuit

LNA

Voltage

Controlled

Attenuator

Output

Amplifier

ACA2604

Figure 1: Application Block Diagram

11/2008

RF Output

1:1

Transmission

Line Balun

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