2

SY88913

Micrel

General

The SY88913 is an integrated limiting amplifier intended

for high-frequency fiber-optic applications. The circuit

connects to typical transimpedance amplifiers found within

a fiber-optics link. The linear signal output from a

transimpedance amplifier can contain significant amounts

of noise, and may vary in amplitude over time. The SY88913

limiting amplifier quantizes the signal and outputs a voltage-

limited waveform.

The TTL /EN pin allows the user to disable the signal

without removing the input signal.

GENERAL DESCRIPTION

Symbol

Rating

Value

Unit

Power Supply Voltage

0 to +7.0

V

Input Voltage

V

Output Voltage (with 50

Ω load)

V

Operating Temperature Range

–40 to +85

°C

Storage Temperature Range

–55 to +125

°C

NOTE:

1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation is not implied

at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions for extended

periods may affect device reliability.

Pin

Type

Function

Data Input

Data Input

Data Input

Inverting Data Input

Input

Loss of Signal Level Set

/EN

TTL Input

Output Enable (active Low)

/LOS

PECL Output

Loss of Signal Indicator

(active Low)

GND

Ground

Ground

PECL Output

Data Output

PECL Output

Inverting Data Output

Power Supply

Positive Power Supply

Output

Reference Voltage Output

for LOS Level Set (see Fig. 2)

PIN NAMES