M02044CG-31 Datasheet, PDF (14/22 Pages) M/A-COM Technology Solutions, Inc. – 3.3/5V Limiting Amplifier for Applications from 100 Mbps to 622 Mbps

4.0 Applications Information
4.1
Applications
• 622 Mbps SDH/SONET
• 100 Mbps Ethernet
• SDH/SONET 155 Mbps Transceivers
• FTTx and Media Converters
• Fast Ethernet Receivers
• FDDI 125 Mbps Receivers
• ESCON Receivers
4.1.1
Reference Current Generation
The M02044 contain an accurate on-chip bias circuit that requires an external 12.1 kΩ 1% resistor, R_REF, from pin
I_REF to ground to set the LOS threshold voltage at ST_SET precisely.
Figure 4-1. Reference Current Generation
V_CC3
R_ST
ST_SET
V_SET
V_{LVL_Det}
LOS
BG_Ref
R_REF
I_REF
02044-DSH-002-A
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