SY88993VKCTR 데이터 시트보기 (PDF) - Micrel

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SY88993VKCTR

5V/3.3V 3.2Gbps HIGH-SPEED LIMITING POST AMPLIFIER

Micrel 

Micrel, Inc.

5V/3.3V 3.2Gbps HIGH-SPEED

LIMITING POST AMPLIFIER

SY88993V

SY88993V

FEATURES

s > 3.2Gbps operation

s 3.3V or 5V power supply option

s Low noise CML data outputs

s Chatter-Free LOS generation

s Open Collector TTL LOS output

s TTL /EN Input

s Differential PECL inputs for data

s Single power supply

s Available in a tiny 10-pin (3mm) MSOP

APPLICATIONS

s 1.25Gbps Gigabit Ethernet

s 531Mbps and 1062Mbps Fibre Channel

s 622Mbps SONET

s Gigabit interface converter

s 2.5Gbps SDH/SONET

DESCRIPTION

The SY88993V limiting post amplifier with its high and

wide bandwidth is ideal for use as a post amplifier in fiber-

optic receivers with data rates up to 3.2Gbps. Signals as

small as 4mVPP can be amplified to drive devices with CML

inputs. The SY88993V generates a chatter-free Loss of

Signal (LOS) open collector TTL output.

The SY88993V incorporates a programmble level detect

function to identify when the input signal has been lost.

This information can be fed back to the /EN input of the

device to maintain stability under loss of signal conditions.

Using LOSLVL pin the sensitivity of the level detect can be

adjusted. The LOSLVL voltage can be set by connecting a

resistor divider between VCC and VREF, Figure 2.

BLOCK DIAGRAM

DIN

/DIN

VREF

VCC

GND

Limiting

Amplifer

LOSLVL

CML

Buffer

Enable

Level

Detect

DOUT

/DOUT

/EN

LOS

M9999-082205

hbwhelp@micrel.com or (408) 955-1690

1

Rev.: C Amendment: /0

Issue Date: August 2005

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