AK2048D Datasheet, PDF (5/16 Pages) Asahi Kasei Microsystems – 2M CMI Transceiver

ASAHI KASEI
[AK2048]
Pin Name
LOS
TXB
TVSS
TVDD
TXA
RXB
REF25
RXA
RVDD
RST
RVSS
I/O
Function
O ^{LOS goes High within 12usec after AK2048D detects that the amplitude of the RXB}
input signal is lower than 135mVpp(typ). Output on the rising edge of RCLK.
O ^{Transmit CMI signal output. TXA is to CMI+, and TXB is corresponds to CMI-.}
Delay time from TDATA to TXB is about 1bit.
- ^{Negative power supply 0V}
- ^{Positive power supply 5V}
O ^{Transmit CMI signal output. TXA is to CMI+, and TXB is corresponds to CMI-.}
Delay time from TDATA to TXA is about 1bit.
I ^{Receive CMI signal input. RXA is to CMI+, and RXB is corresponds to CMI-.}
O ^{Output reference voltage (about 2.5V) in order to decide middle point of input signal}
(RXA-RXB). Connected to middle point of the external equalizer.
I ^{Receive CMI signal input. RXA is to CMI+, and RXB is corresponds to CMI-.}
- ^{Positive power supply. 5V}
O ^{“Low” input reset the calibration circuit and forces LOCK output “High” and}
TXA-TXB output “High-Z”. When this input rise, PLL calibration restarts.
Please set open or connect to VDD when not using.
- ^{Negative power supply 0V}
MS0073-E-00
5
2001/01