SY88893VKI Micrel Inc, SY88893VKI Datasheet

IC AMP POST PECL 3.3V/5V 10-MSOP

SY88893VKI

Manufacturer Part Number
SY88893VKI
Description
IC AMP POST PECL 3.3V/5V 10-MSOP
Manufacturer
Micrel Inc
Type
Limiting Postamplifierr
Datasheet

Specifications of SY88893VKI

Applications
Optical Networks
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Micrel, Inc.
M9999-081005
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
TYPICAL APPLICATIONS CIRCUIT
Single 3.3V or 5V power supply
Up to 155Mbps operation
Low noise PECL data outputs
Chatter-free TTL Signal Detect (SD) output
TTL EN input
Programmable SD level set (SD
Available in tiny 10-pin MSOP (3mm 3mm) package
155Mbps SONET/SDH
Small form factor transceivers
High-gain line driver and line receiver
From
Transimpedance
Amp.
LVL
50
)
3.3V/5V 155Mbps PECL LOW-POWER
LIMITING POST AMPLIFIER W/TTL
SIGNAL DETECT
50
/D
D
IN
IN
SD
GND
SY88893V
V
EN
CC
1
designed for use in fiber-optic receivers. The device connects
to typical transimpedance amplifiers (TIAs). The linear signal
output from TIAs can contain significant amounts of noise
and may vary in amplitude over time. The SY88893V
quantizes these signals and outputs PECL level waveforms.
power supply, over temperatures ranging from –40 C to
+85 C. With its wide bandwidth and high gain, signals with
data rates up to 155Mbps and as small as 5mVp-p can be
amplified to drive devices with PECL inputs.
programmable signal-detect level set pin (SD
sensitivity of the input amplitude detection. SD asserts high
if the input amplitude rises above the threshold set by SD
and deasserts low otherwise. EN deasserts the true output
signal without removing the input signal. Typically 6dB SD
hysteresis is provided to prevent chattering.
SD
V
DESCRIPTION
CC
The SY88893V low-power limiting post amplifier is
The SY88893V operates from a single +3.3V or +5V
The SY88893V generates a TTL SD output. A
LVL
100k
V
REF
0.1 F
/D
D
OUT
OUT
R
pd
For 3.3V, R
For 5V, R
GND
R
pd
pd
pd
= 220
= 120
To
CDR
Rev.: B
Issue Date: August 2005
SY88893V
LVL
Amendment: /0
) sets the
SY88893V
LVL

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SY88893VKI Summary of contents

Page 1

Micrel, Inc. FEATURES Single 3. power supply Up to 155Mbps operation Low noise PECL data outputs Chatter-free TTL Signal Detect (SD) output TTL EN input Programmable SD level set (SD Available in tiny 10-pin MSOP (3mm 3mm) package ...

Page 2

Micrel, Inc. PACKAGE/ORDERING INFORMATION VCC DIN 2 9 DOUT /DIN 3 8 /DOUT VREF SDLVL 5 6 GND 10-Pin MSOP (K10-1) PIN DESCRIPTION Pin Number Pin Name DIN 3 /DIN 4 ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ....................................... 0V to +7.0V CC Input Voltage ( ......................................... Output Current (I ) OUT Continuous ............................................................. 50mA Surge .................................................................... 100mA EN Voltage ............................................................. 0 ...

Page 4

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS V = 3.0V to 3.6V or 4.5V to 5.5V LOAD Symbol Parameter HYS SD Hysteresis t SD Release Time OFF t SD Assert Time Differential Output Rise/Fall Time r f ...

Page 5

Micrel, Inc. DETAILED DESCRIPTION The SY88893V low-power limiting post amplifier operates from a single +3.3V or +5V power supply, over temperatures from – +85 C. Signals with data rates up to 155Mbps and as small as 5mV can ...

Page 6

Micrel, Inc. DATA+ DATA— (DATA+) — (DATA—) ESD STRUCTURE Figure 2. Input Structure V CC 6.75k SY88893V Figure 4. SD Output Structure M9999-081005 hbwhelp@micrel.com or (408) 955-1690 Figure 1. V and V Definitions ...

Page 7

Micrel, Inc. FUNCTIONAL BLOCK DIAGRAM V GND SD DESIGN PROCEDURE Layout and PCB Design Since the SY88893V is a high-frequency component, performance can be largely determined by the board layout and design. A common problem with high-gain amplifiers is the ...

Page 8

Micrel, Inc. 10 LEAD MSOP (K10-1) MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is ...

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