ASAHI KASEI
[AK2546]
AK2546
7 channel T1 Transceiver
FEATURE
•
7ch short haul T1 transceiver
•
Jitter Tolerance: Compliant with GR-499 Category I, II
•
Transmitter Pulse Shape: Compliant with GR-499
•
Loss of Signal Detection
•
Selectable Signal Polarity
•
Local/Remote Loopback
•
Parallel Microprocessor Interface
•
Single 3.3V±5% Operation
•
Low Power Consumption (105mW/ch: Typ)
•
Pin-to-pin compatible with AK2548 (7 channel E1 transceiver)
•
Small Plastic Package 144pin LQFP
BLOCK DIAGRAM
MCLK
CLKSEL
RESET
TEST1-5
R /W (WR)
AD7-AD0
CLKGEN
CONTROL
AS(ALE)
DS(RD)
CS
BTS
INT
LOS1
TRANSCEIVER 1
RTIP1
RRING1
TTIP1
LOS
Remote Loopback
Local Loopback
RECOVER
RCLK1
RPOS
RNEG1
TCLK1
TPOS
TNEG1
SHAPER
TRING1
RTIP2-7
RRING2-7
TTIP2-7
TRING2-7
TRANSCEIVER 2-7
LOS2-7
RCLK2-7
RPOS2-7
RNEG2-7
TCLK2-7
TPOS2-7
TNEG2-7
7 Channel T1 Transceiver Block Diagram
C0019-E-01
1
1999/9
AKM [ ASAHI KASEI MICROSYSTEMS ]
