AK2504A Datasheet, PDF (8/30 Pages) List of Unclassifed Manufacturers – DS3/STS-1/ES Transceiver

ASAHI KASEI
[AK2504A]
Others
No. Pin Name I/O
Function
43 _E3
55 IREF
8 RLOOP
-
DS3/STS-1 or E3 select pin
High : DS3/STS-1
Low : E3
O
Current Reference Output
External resistance (4.7 kΩ±1%) should be connected to VSSA.
Remote Loop Back
I Active High input. RPDATA and RNDATA are transmitted from TTIP and
TRING using RCLK. Input High on both RLOOP and LLOOP are inhibited.
10 LLOOP
Local Loop Back
I Active High input. TPDATA,TNDATA and TCLK are looped back to RPDATA,
RNDATA and RCLK. Input High on both RLOOP and LLOOP are inhibited.
61 _RESET
I
Active low RESET.
Pulled up to VDD with internal resister.
46 TEST1
Test Mode.
I
Should be connected to VSS.
TEST1=High : The part goes into Test mode.
TEST1=Low : The part goes into the Normal operation mode.
9 TEST2
I Should be connected to VSS.
27 TEST3
I Should be connected to VSS.
26 TEST4
O Output “Low” when TEST1=Low (Normal operation mode)
19 TEST5
I Should be connected to VSS.
58 TEST6
I Should be connected to VSS.
40 TEST7
O Should be open.
12 VDDD
- Power Supply for Digital. +3.3 volts.
13 VSSD
- Ground for Digital. 0 volts
11 VSSS
- Ground for Substrate. 0 volts
MS0143-E-01
-8-
2004/01