SI5600 Datasheet, PDF (24/28 Pages) List of Unclassifed Manufacturers – SiPHY-TM OC-192/STM-64 SONET/SDH TRANSCEIVER

Si5600
Pin Number(s)
H3
C5
Name
VDD33
VREF
I/O
VDD33
O
Signal Level
Description
1.8 V or 3.3 V
Digital Output Supply.
Must be tied to either 1.8 V or 3.3 V. When tied to
3.3 V, LVTTL compatible output voltage swings
on RXLOL and LOS, TXLOL, FIFOERR are sup-
ported.
Voltage Ref
Voltage Reference.
The Si5600 provides an output voltage reference
that can be used by an external circuit to set the
LOS threshold, slicing level, or sampling phase
adjustment. The equivalent resistance between
this pin and GND should not be less than 10 kΩ.
The reference voltage is nominally 1.25 V.
24
Preliminary Rev. 0.31