参数资料
型号: SY88022LMG TR
厂商: Micrel Inc
文件页数: 8/10页
文件大小: 0K
描述: IC LASER DVR 11.3GBPS 3.3V 16MLF
标准包装: 1,000
类型: 激光二极管驱动器(光纤)
数据速率: 11.3Gbps
通道数: 1
电源电压: 3 V ~ 3.6 V
电流 - 电源: 65mA
电流 - 调制: 60mA
电流 - 偏置: 80mA
工作温度: -40°C ~ 85°C
封装/外壳: 16-VFQFN 裸露焊盘,16-MLF?
供应商设备封装: 16-MLF?(3x3)
包装: 带卷 (TR)
安装类型: 表面贴装

Micrel, Inc.
Functional Diagram
Functional Description
As shown on the block diagram above, the driver is
composed from an input equalizer, and a modulation
block consisting of a pre-driver, and a current source.
Equalizer
The input equalizer allows for compensation of up to 9”
of FR4 microstrip trace or equivalent. The equalization
restores the losses in high frequency components of the
signal caused by its travel on the line card traces and
through the connectors between the line card and the
module
before it reaches the input stage. The amount of
equalization is programmable with a resistor from pin 7
to ground.
Modulator
The modulator consists of a pre-driver and a current
source. The modulation current is set in the pre-driver by
applying a voltage within the range 0V to 1.2V to pin 5
(MODSET). The pre-driver provides the current to the
output stage, which consists of a current source
SY88022L
composed from a differential pair which collectors are
connected to MOD+/MOD- pins and have 50 ? internal
termination to VCC. The Modulation gain curve on page
6 shows modulation current variation versus the applied
voltage at MODSET pin.
Bias
The bias is set by applying a voltage within the range 0V
to 1.2V to pin 16 (BIASSET). The bias gain curve on
page 6 shows bias current variation versus the applied
voltage at pin 16.
The SY88022L driver is designed to work with one of the
Micrel’s MIC300X series of controllers which have built
in APC (Automatic Power Control) circuit and a serial
interface for programming modulation and bias,
temperature compensation tables, setting registers, and
monitoring registers read back. Refer to the
MIC3001/MIC3002/MIC3003 datasheets for more
details. The applications section below shows how to set
up the driver to work correctly with the MIC300X
controller.
October 2009
8
M9999-102809-A
hbwhelp@micrel.com or (408) 955-1690
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