AK2504A Datasheet, PDF (18/30 Pages) List of Unclassifed Manufacturers – DS3/STS-1/ES Transceiver

ASAHI KASEI
[AK2504A]
TX and RX Output status related to NRZ, TAOS, RLOOP, LLOOP input
Table 13 TX and RX Output status
E3B NRZ TAOS RLOO LLOO
PP
TTIP/TRING
X
0
1
1
0 AMI ones
0
1
1
1
0 AMI ones
1
1
1
1
0 AMI ones
X
0
0
1
0 Recovered data
0
1
0
1
0 Recovered data
1
1
0
1
0 Recovered data
X
0
1
0
1 AMI ones
0
1
1
0
1 AMI ones
1
1
1
0
1 AMI ones
X
0
0
0
1 TPDATA/TNDATA
0
1
0
0
1 TPDATA/TNDATA(HDB3)
1
1
0
0
1 TPDATA/TNDATA(B3ZS)
X
X
1
0
0 AMI ones
X
0
0
0
0 TPDATA/TNDATA
0
1
0
0
0 TPDATA/TNDATA(HDB3)
1
1
0
0
0 TPDATA/TNDATA(B3ZS)
RPDATA/RNDATA
Recovered data
Recovered data(UNHDB3)
Recovered data(UNB3ZS)
Recovered data
Recovered data(UNHDB3)
Recovered data(UNB3ZS)
TPDATA/TNDATA
TPDATA/TNDATA(UNHDB3)
TPDATA/TNDATA(UNB3ZS)
TPDATA/TNDATA
TPDATA/TNDATA(UNHDB3)
TPDATA/TNDATA(UNB3ZS)
Recovered data
Recovered data
Recovered data(UNHDB3)
Recovered data(UNB3ZS)
Loss-of-Lock Detection
If the recovered clock frequency is larger than approximately 0.5% of EXCLK, RLOL alarm goes High.
External Reference Clock
An external reference clock EXCLK is used to set the frequency of the PLL. The frequency of EXCLK should
be within the ideal clock±100ppm.
Reset
AK2504A goes into RESET status if _RESET input is low.
Output pins status is as follows during the low input on _RESET .
RLOS : High
RLOL : High
RPDATA : Low
RNDATA : Low
RCLK : High
Test Mode
The AK2504A goes into Test Mode when TEST1 pin is High.
MS0143-E-01
- 18 -
2004/01