
Features
Dual T1/E1 Line Interface Optimized for
Mutiplexer Applications
Low Power Consumption
(Typically 220mW per Line Interface)
Transmit Driver Performance Monitors
Jitter Attenuation in the Transmit Path
Matched Impedance Transmit Drivers
Supports JTAG Boundary Scan
Hardware Mode Derivative of the CS61584
General Description
The CS61582 is a dual line interface optimized for
highly-integrated T1/E1 asynchronous or synchronous
multiplexer applications such as SONET and SDH.
Each channel features individual control and status
pins which eliminates the need for external microproc-
essor support. The matched impedance drivers reduce
power consumption and provide substantial return loss
to insure superior T1/E1 pulse quality.
The CS61582 provides two transmitter driver perform-
ance monitor circuits and JTAG boundary scan to
enhance system testability and reliability. The CS61582
is a 5 volt device that is a hardware mode derivative of
the CS61584.
ORDERING INFORMATION
CS61582-IQ5, 64-pin TQFP, -40 to +85 °C
JULY ’96
DS224PP1
1
Crystal Semiconductor Corporation
P. O. Box 17847, Austin, Texas, 78760
(512) 445 7222 FAX:(512) 445 7581
Dual T1/E1 Line Interface
CS61582
Copyright
Crystal Semiconductor Corporation 1996
(All Rights Reserved)
TTIP1
TRING1
RRING1
RTIP1
CONTROL
TCLK1
RCLK1
JTAG
4
REFCLK
1XCLK
TV+
TGND
RV+ RGND DV+ DGND AV+
AGND BGREF
2
2
2
2
3
2
CLOCK GENERATOR
TPOS1
TNEG1
RPOS1
RNEG1
LOS1 LOS2
PULSE
SHAPING
CIRCUITRY
CLOCK &
DATA
RECOVERY
LOS
DETECT
JITTER
ATTENUATOR
TAOS
L
O
C
A
L
L
O
O
P
B
A
C
K
1
R
E
M
O
T
E
L
O
O
P
B
A
C
K
TTIP2
TRING2
RRING2
RTIP2
DRIVER
TCLK2
RCLK2
TPOS2
TNEG2
RPOS2
RNEG2
PULSE
SHAPING
CIRCUITRY
CLOCK &
DATA
RECOVERY
TAOS
L
O
C
A
L
L
O
O
P
B
A
C
K
1
R
E
M
O
T
E
L
O
O
P
B
A
C
K
JITTER
ATTENUATOR
LOS
DETECT
DRIVER
PERFORMANCE
MONITOR
DRIVER
PERFORMANCE
MONITOR
MRING1
MTIP1
MRING2
MTIP2
DPM1 DPM2
RESET
CLKE
TAOS1
LLOOP1
RLOOP1
CON01
CON11
CON21
RLOOP2
LLOOP2
TAOS2
CON02
CON12
CON22
RECEIVER
RECEIVER
DRIVER