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Micrel Semiconductor

SY88883V Datasheet Preview

SY88883V Datasheet

CML LOW-POWER LIMITING POST AMPLIFIER

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Micrel, Inc.
3.3V/5V 3.2Gbps CML LOW-POWER
LIMITING POST AMPLIFIER WITH TTL SD
SY88883V
SY88883V
FEATURES
DESCRIPTION
s Multi-rate up to 3.2Gbps operation
The SY88883V low-power, limiting post amplifier is
s Wide gain-bandwidth product
• 38dB differential gain
• 2.2GHz 3dB bandwidth
s Low noise 50CML data outputs
• 800mVPP output swing
• 60ps edge rates
• 5psRMS typ. random jitter
• 15psPP typ. deterministic jitter
s Chatter-free Signal Detect (SD) output
• 4.6dB electrical hysteresis
• OC-TTL output with internal 5kpull-up resistor
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 SY88883V
quantizes these signals and outputs typically 800mVPP
voltage-limited waveforms.
The SY88883V operates from a single +3.3V ±10% or
+5V ±10% power supply, over the industrial temperature
range of –40°C to +85°C. With its wide bandwidth and high-
gain, signals with data rates up to 3.2Gbps and as small as
10mVpp can be amplified to drive devices with CML inputs
or AC-coupled PECL inputs.
s Programmable SD sensitivity using single external
The SY88883V generates a signal detect (SD) open-
resistor
collector TTL output with internal 5kpull-up resistor. A
s Internal 50data input termination
s Wide operating range
• Single 3.3V ±10% or 5V ±10% power supply
• –40°C to +85°C industrial temperature range
s Available in a tiny 10-pin MSOP (3mm × 3mm)
package
programmable signal detect level set pin (SDLVL) sets the
sensitivity of the input amplitude detection. SD asserts high
if the input amplitude rises above the threshold set by SDLVL
and de-asserts low otherwise. Typically 4.6dB SD hysteresis
is provided to prevent chattering.
All support documentation can be found on Micrel’s web
site atwww.DataSheet4U.com www.micrel.com.
APPLICATIONS
s 1.25Gbps and 2.5Gbps Gigabit Ethernet
s 1.062Gbps and 2.125Gbps Fibre Channel
s 155Mbps, 622Mbps, 1.25Gbps and 2.5Gbps
SONET/SDH
s Gigabit interface converter (GBIC)
s Small form factor (SFF) and small form factor
pluggable (SFP) transceivers
s Parallel 10G Ethernet
s High-gain line driver and line receiver
TYPICAL PERFORMANCE
3.3V, 25°C, 10mVPP Input
@2.5Gbps 2231 PRBS, RLOAD = 50to VCC
FUNCTIONAL BLOCK DIAGRAM
DIN
50
/DIN
VCC
GND
Limiting
Amplifer
VCC
1.3V
2.8k
SDLVL
CML
Buffer
DOUT
/DOUT
Level
Detect
VCC
5k
OC-TTL
Buffer
SD
TIME (100ps/div.)
M9999-081005
hbwhelp@micrel.com or (408) 955-1690
1
Rev.: B Amendment: /0
Issue Date: August 2005




Micrel Semiconductor

SY88883V Datasheet Preview

SY88883V Datasheet

CML LOW-POWER LIMITING POST AMPLIFIER

No Preview Available !

Micrel, Inc.
SY88883V
PACKAGE/ORDERING INFORMATION
GND 1
DIN 2
/DIN 3
GND 4
SDLVL 5
10 VCC
9 DOUT
8 /DOUT
7 VCC
6 SD
10-Pin MSOP (K10-1)
Ordering Information
Part Number
SY88883VKI
SY88823VKITR(1)
SY88823VKG
Package
Type
K10-1
K10-1
K10-1
Operating
Range
Industrial
Industrial
Industrial
SY88823VKGTR(1) K10-1
Industrial
Note:
1. Tape and Reel.
Package
Marking
883V
883V
883V with
Pb-Free bar-line indicator
883V with
Pb-Free bar-line indicator
Lead
Finish
Sn-Pb
Sn-Pb
Pb-Free
NiPdAu
Pb-Free
NiPdAu
PIN DESCRIPTION
Pin Number
1, 4
2, 3
5
Pin Name
GND
DIN, /DIN
SDLVL
6 SD
7, 10
VCC
Type
Ground
Differential Data Input
Input:
Default is
maximum sensitivity.
Open Collector
TTL Output with
internal 5kpull-up
resistor
Power Supply
8, 9 DOUT, /DOUT Differential CML Output
Pin Function
Device ground.
Differential data input. Each pin internally terminates to an internal
reference voltage (VREF) through 50.
Signal Detect Level Set: A resistor from this pin to VCC sets the
threshold for the data input amplitude at which the SD output will be
asserted. Bypass with 0.01µF low ESR capacitor from SDLVL to VCC
to stabilize SDLVL.
Signal Detect: Asserts high when the data input amplitude rises
above the threshold set by SDLVL.
Positive power supply. Bypass with 0.1µF0.01µF low ESR
capacitors. 0.01µF capacitors should be as close to VCC pins as
possible.
Differential data output.
M9999-081005
hbwhelp@micrel.com or (408) 955-1690
2


Part Number SY88883V
Description CML LOW-POWER LIMITING POST AMPLIFIER
Maker Micrel Semiconductor
Total Page 8 Pages
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