OQ2538HP 查看數據表（PDF） - Philips Electronics

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OQ2538HP

SDH/SONET STM16/OC48 main amplifiers

Philips Electronics 

Philips Semiconductors

SDH/SONET STM16/OC48 main amplifiers

Product specification

OQ2538HP; OQ2538U

FEATURES

• Differential 100 Ω outputs for direct connection to

Current-Mode Logic (CML) inputs

• Wide bandwidth (3 GHz)

• 48.5 dB limiting gain

• Noise figure typically 11 dB

• Automatic offset compensation

• Input level-detection circuits for Automatic Gain Control

(AGC) and Loss Of Signal (LOS) detection

• Low power dissipation (typically 270 mW)

• Single −4.5 V supply voltage

• Low cost LQFP48 plastic package.

GENERAL DESCRIPTION

The OQ2538HP is a limiting amplifier IC intended for use

as the main amplifier in 2.5 Gbits/s Non-Return to Zero

(NRZ) transmission systems (SDH/SONET).

Comprised of four amplifier stages with a total gain of

48.5 dB, it provides for a wide input signal dynamic range

at a constant CML-compatible output level.

Two level-detection circuits are provided for monitoring

AGC and LOS input signal levels. An internal automatic

offset compensation circuit eliminates offset in the

amplifier chain.

APPLICATIONS

• Main amplifier in Synchronous Digital Hierarchy (SDH)

and Synchronous Optical Network (SONET) systems for

short, medium and long haul optical transmission

• Level detector for laser diode control loops

• Wideband RF gain block with internal level detectors.

ORDERING INFORMATION

TYPE

NUMBER

OQ2538HP

OQ2538U

NAME

LQFP48

−

PACKAGE

DESCRIPTION

plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm

bare die; dimensions 2070 × 2070 × 380 µm

VERSION

SOT313-2

−

1998 Oct 14

2

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