SY87725LHY Micrel Inc, SY87725LHY Datasheet - Page 17

• Manufacturer Part Number: SY87725LHY
• Description: 3.3V ONU SERDES (I Temp, /60 Pin EP-TQFP/T+R)
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of SY87725LHY

• Protocol: LVDS
• Voltage - Supply: 3.15 V ~ 3.45 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2544; SY87725LHY

Remote Loopback Modes 01 and 10
These modes verify the operation of the CDR by
July 2007
Figure 7. Remote Loopback Recovered Clock Flow
Figure 8. Remote Loopback Recovered Data Flow
Table 12. Loopback Control Signals
Table 13. Loopback Control Signals
XMT_CNTRL0
XMT_CNTRL0
1
0
17
XMT_CNTRL1
XMT_CNTRL1
looping back the recovered clock or data.
The REFCLK is necessary for normal operation of the
CDR.
0
1
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