General Description

The MAX3532 is a programmable power amplifier for use in upstream cable applications. The device outputs up to 62dBmV (continuous wave) through a 1:2 (voltage ratio) transformer when driven with 36dBmV at its input. It features variable gain, which is controlled via a 3-wire digital serial bus and available in 1dB steps. The operating frequency ranges from 5MHz to 42MHz.

Features

♦ Single +5V Supply

♦ Output Level Ranges from Less than 8dBmV to 62dBmV, in 1dB Steps

♦ Gain Programmable in 1dB Steps

♦ 350mW Typical Power Dissipation

♦ Transmit-Disable Mode

♦ Two Shutdown Modes

Applications

Cable Modems

Telephony over Cable

CATV Set-Top Box