SY88722VKC Micrel Inc, SY88722VKC Datasheet

IC LASR DRVR 622MBPS 5.5V 10MSOP

SY88722VKC

Manufacturer Part Number
SY88722VKC
Description
IC LASR DRVR 622MBPS 5.5V 10MSOP
Manufacturer
Micrel Inc
Type
Laser Diode Driver (Fiber Optic)r
Datasheets
1.SY88722VKG_TR.pdf (5 pages)
2.SY88722VKC.pdf (6 pages)

Specifications of SY88722VKC

Number Of Channels
1
Data Rate
622Mbps
Voltage - Supply
3 V ~ 3.6 V, 4.5 V ~ 5.5 V
Current - Supply
25mA
Current - Modulation
30mA
Operating Temperature
-40°C ~ 85°C
Package / Case
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type
Surface Mount
Operating Supply Voltage (typ)
3.3/5V
Operating Temperature (min)
0C
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Micrel, Inc.
The SY88722V features:
The SY88722V evaluation board features:
M9999-102405
hbwhelp@micrel.com or (408) 955-1690
FUNCTIONAL FEATURES
AVAILABLE MEASUREMENTS
EVALUATION BOARD
Single 3.3V or 5V power supply
Up to 622Mbps operation
Modulation current to 30mA
PECL output enable
Differential PECL inputs
Available in a tiny 10-pin (3mm 3mm) MSOP
User adjustable potentiometer to adjust
modulation current
50 equivalent input network termination
AC-coupled I/O with SMA connectors
Frequency performance
Output eye pattern generation
Mask testing
Jitter
Output rise/fall time
BER testing
Figure 1. SY88722V Evaluation Board
5V/3.3V 622Mbps
LASER DIODE DRIVER
with OUTPUT ENABLE
1
a semiconductor laser diode in optical transmission
applications. The modulation current (I
the current (I
output OUT is HIGH and no current flows through OUT
when output enable is HIGH.
outputs with a 30mA maximum current driving capability.
The external resistor R
and V
recommended to compensate for laser diode matching
issues. Pins 9 and 10 should be connected to achieve better
performance.
evaluation board. It should be used in conjunction with the
SY88722V data sheet, which contains full specifications
forthe SY88722V.
thorough evaluation of the SY88722V 622Mbps laser diode
driver with output enable. The board is an easy-to-use,
single-layer, high-speed microstrip design. It is designed to
be driven by a high-speed 622Mbps pattern generator and
provides on-board 50
generator’s outputs. The input termination network also
provides the SY88722V's required input bias of V
and provides for simple user adjustability of the modulation
current though the adjustment of an on-board potentiometer.
With the amplitude of the voltage waveform displayed on
the scope, the user can verify that the desired modulation
current is obtained through the equation: I
0.025k .
on Micrel’s web site at: www.micrel.com.
DESCRIPTION
The SY88722V is a high-speed current switch for driving
The device incorporates complementary open collector
This manual provides information on the SY88722V
The SY88722V evaluation board enables fast and
The board is intended to be terminated to a 50
All data sheets and support documentation can be found
CC
to dissipate the worst case power. R
RSET
) through the external resistor R
EXT
equivalent terminations for the
must be placed between /OUT
EVALUATION BOARD
SY88722V Evaluation Board
OUT
mod
Rev.: B
Issue Date: October 2005
) is controlled by
(mA) = V
SY88722V
CC
Amendment: /0
SET
–1.3V.
amp
SER
scope
. The
(V)/
is

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SY88722VKC Summary of contents

Page 1

Micrel, Inc. FUNCTIONAL FEATURES The SY88722V features: Single 3. power supply Up to 622Mbps operation Modulation current to 30mA PECL output enable Differential PECL inputs Available in a tiny 10-pin (3mm 3mm) MSOP The SY88722V evaluation board features: ...

Page 2

Micrel, Inc. MEASUREMENT SETUP Equipment used for measurements: 1. Agilent 83752A Synthesized Sweeper 2. Agilent 70004A Display 3. Agilent 70843B Error Performance Analyzer 4. Agilent 86100A Wide-Bandwidth Oscilloscope 5. Agilent E3620A DC Power Supply 6. Matched high-speed cables w/SMA connectors ...

Page 3

Micrel, Inc. SETUP FOR MEASUREMENTS This section explains how to connect and setup the SY88722V evaluation board per Figure 2. Ensure proper ESD precautionary measures are taken before handling sensitive electronic equipment, including the SY88722V evaluation board itself. 1. Set ...

Page 4

Micrel, Inc. MEASUREMENTS The SY88722V evaluation board assumes the use scope to terminate the SY88722V. This, in parallel with the on-board 50 output pull-up resistors, creates a 25 output load. The current passing through this load creates ...

Page 5

Micrel, Inc. FREQUENTLY ASKED QUESTIONS I just got my SY88722V evaluation board and I cannot get anything to work! Where should I start? First, check the power supplies. Remember, the board is V referenced and uses a negative supply. Typical ...

Page 6

Micrel, Inc. BILL OF MATERIALS Item Part Number C1, C2, C3, PCC1762CT-ND C4, C5 P11317CT-ND J1, J2, TSW–103–07–S–S GND BLM21A102F R1, R4 P125GCT-ND R2, R3 P83LCT-ND R5 3269W-1-203G R6 P5.1KGCT-ND R8, R9 P49.9LCT-ND S1, S2, S3, ...

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