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M02097-11 PDF预览

M02097-11

更新时间: 2024-11-06 01:07:59
品牌 Logo 应用领域
泰科 - TE /
页数 文件大小 规格书
21页 671K
描述
3.3/5V LED Driver / Limiting Amplifier for Operation to 500 Mbps

M02097-11 数据手册

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Preliminary Information  
This document contains information on a new product. The parametric information, although not  
fully characterized, is the result of testing initial devices.  
M02097-11/-21  
3.3/5V LED Driver / Limiting Amplifier  
for Operation to 500 Mbps  
The M02097 is an integrated LED driver and limiting amplifier for applications to 500 Mbps. The LED driver  
modulation output can be AC or DC coupled to an LED. The device can operate from a 3.3V or 5V supply.  
The M02097 includes monitors for bias and modulation current. Integrated safety circuitry provides latched bias  
and modulation current shutdown if a fault condition is detected and provides an internal V switch.  
CC  
The limiting amplifier also includes a programmable signal-level detector, allowing the user to set thresholds at  
which the logic outputs are enabled. The M02097-11 features a PECL LOS-ST output while the M02097-21  
features a CMOS (external pull-up required) LOS-ST output. PECL outputs are available on the limiting amplifier.  
Configuration logic provides flexibility in setting data path polarity, safety logic configuration, and LOS behavior.  
Applications  
Features (con’t)  
• 155Mbps LAN ATM Transceivers  
• ESCON Receivers  
• Fast Ethernet/FDDI  
• Temperature compensation for modulation current  
• Pre-bias adjustment to improve LED edge speed  
• SFP compliant safety circuitry (configurable)  
• Multimode LED Transmitters  
• SFP Transceivers  
• 6mV input limiting amp sensitivity at 500 Mbps.  
• PECL limiting amplifier outputs  
• IEEE 1394 S100, S200 and S400 Transceivers  
• Limiting amplifier includes integrated DC offset cancellation circuit  
• Polarity Control for both the driver and limiting amplifier data paths  
Features  
• Operates with 3.3V or 5V supply with an internal auto-sensing  
regulator that enables with 5V supplies and is bypassed with 3.3V  
supplies  
• Powers 3.3V ROSAs from its Receiver Regulator output enabling true  
3.3/5V designs using all 3.3V Mindspeed TIAs  
• High speed operation; suitable for applications to 500 Mbps. 200 ps  
typical rise/fall time into 5.  
• Programmable modulation current to 120 mA  
• Integrated power supply switch for redundant shutdown under a  
fault condition  
M02097 Block Diagram  
V 3R  
CC  
STSET  
V R  
CC  
Threshold  
Setting  
Circuit  
Regulator  
with Bypass  
RxOUTp  
RxOUTm  
RxINp  
2k  
Output  
Buffer  
Limiting  
Amplifier  
Vttr  
2kΩ  
RxINm  
Rx_Polarity  
PECL  
LOS-ST  
Offset Cancel  
Iref  
PECL (-11)  
Level  
Detect  
Biasing  
LOS  
CMOS/TTL  
(-21)  
Comparator  
LOS-to-JAM  
RSSI  
LOS-ST_sel  
DCR_Disable  
To Safety  
Logic  
V T  
CC  
3.3V Regulator  
with Bypass  
V 3T  
CC  
TC  
START  
To Safety  
Logic  
Modulation  
Control  
SV  
CC  
TC  
SLOPE  
MODSET  
OUT-  
D
+
-
IN  
4kΩ  
4kΩ  
Output  
Buffer  
Input  
Buffer  
Laser  
Driver  
OUT+  
Vttx  
D
GND  
0
IN  
Tx_Polarity  
Rx_Polarity  
CONFIG_1  
CONFIG_2  
CONFIG_3  
CONFIG_4  
V
V
CC3  
CC  
Tx_Polarity  
Configuration  
Logic  
DCR_Disable  
PB  
OUT  
SCB  
LOS-to-JAM  
Safety  
LED Pre-Bias Control  
Circuitry with  
Latched Fault  
TX  
Disable  
LOS-ST_sel  
GND  
RESET  
®
02097-DSH-001-C  
Mindspeed Technologies  
November 2006  
Preliiminary Information/Mindspeed Proprietary and Confidential  

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