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M02046-15

11

3.3/5V Limiting Amplifier for Applications from 100 Mbps to 1.25 Gbps

Rev V4

3.0 Functional Description

3.1

Overview

The M02046 is a highly integrated high-gain limiting amplifier that can be used with the same board layout and

footprint as the MC2046-2. Featuring PECL outputs, the M02046 is intended for use in applications from 100 Mbps

to 1.25 Gbps. Full output swing is achieved even at minimum input sensitivity. The M02046 can operate with a 3.3V

or 5V supply.

Included in the M02046 is a programmable signal-level detector, allowing the user to set thresholds at which the

logic outputs are enabled. The signal detect function has typically 2 dB (optical) of hysteresis which prevents

chatter at low input levels. A squelch function, which turns off the output when no signal is present, is provided by

externally connecting the LOS Status output to the JAM input.

The M02046-15 has a CMOS Status output and the M02046-25 has a PECL Status output. Both versions have a

CMOS LOS output.