SY87725LHY TR Micrel Inc, SY87725LHY TR Datasheet - Page 18

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

Specifications of SY87725LHY TR

• 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: SY87725LHYTR; SY87725LHYTR

CDR Bypass Mode
This mode bypasses the CDR and feeds SIN directly
into the DeMUX. Because the CDR is bypassed, there
is no recovered clock in this mode. The RefClk is fed
directly into the DeMUX and is the serial rate clock.
July 2007
Table 14. Loopback Control Signals
RCV_CNTRL0
Figure 9. CDR Bypass Mode
0
18
RCV_CNTRL1
Therefore, in this mode only, the RefClk is not used by
the Synthesizer but will be at the same frequency as
the SIN data rate. In this mode the maximum SIN data
rate is 155.52Mbps and the matching RefClk
frequency will be 155.52MHz. The Data at SIN is
sampled
1
at
the
[e-mail]
falling
edge
or [phone]
M9999-071007-B
of
REFCLK.