CS61304A Datasheet, PDF (1/32 Pages) Cirrus Logic – T1/E1 Line Interface

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T_T1₁/_/E_E1₁ Line Interface
Features
General Description
• Provides Analog Transmission Line
Interface for T1 and E1 Applications
• Provides Line Driver, Jitter Attenuator
and Clock Recovery Functions
• Fully Compliant with AT&T 62411
Stratum 4, Type II Jitter Requirements
• ^{Low Power Consumption}
• ^{B8ZS/HDB3/AMI Encoder/Decoder}
• ^{50 mA Transmitter Short-Circuit}
Current Limiting
The CS61304A combines the complete analog transmit
and receive line interface for T1 or E1 applications in a
low power, 28-pin device operating from a +5V supply.
The CS61304A is a pin-compatible replacement for the
LXT304A.
The receiver uses a digital Delay-Locked-Loop which is
continuously calibrated from a crystal reference to pro-
vide excellent stability and jitter tolerance. The
CS61304A has a receiver jitter attenuator optimized for
T1 CPE applications subject to AT&T 62411 and E1
ISDN PRI applications. The transmitter features inter-
nal pulse shaping and a low impedance output stage
allowing the use of external resistors for transmitter im-
pedance matching.
Applications
• Primary Rate ISDN Network/Termination Equipment
• Channel Service Units
ORDERING INFORMATION
See page 31.
( ) = Pin Function in Host Mode
[ ] = Pin Function in Extended Hardware Mode
(CLKE) (INT) (SDI) (SDO)
MODE TAOS LEN0 LEN1 LEN2 TGND TV+
2
R
TCLK
E
3
M
TPOS
O
[TDATA]
T
TNEG ⁴
AMI,
E
[TCODE]
B8ZS,
8 ^HDB3,
RCLK
CODER
L
O
O
7
P
RPOS
B
[RDATA]
A
RNEG ⁶
C
[BPV]
K
26
L
O
C
A
L
L
O
O
JITTER
P
ATTENUATOR
B
A
C
K
9
10
1
5
28
CONTROL
23 24 25
14 15
LINE DRIVER ₁₃
PULSE
SHAPER
16
TTIP
TRING
CLOCK &
DATA
RECOVERY
SIGNAL
QUALITY
MONITOR
LINE RECEIVER
DRIVER
MONITOR
27 12
21
22
19 _RTIP
20
RRING
17 _MTIP
[RCODE]
18 _MRING
[PCS]
11 _DPM
[AIS]
RLOOP XTALIN XTALOUT ACLKI
(CS)
LLOOP
(SCLK)
LOS RV+
RGND
Preliminary Product Information ^{This document contains information for a new product. Crystal}
Semiconductor reserves the right to modify this product without notice.
Crystal Semiconductor Corporation
P^ht.^tpO^:/.^/wB^wo^wx^.c1^ir7^ru8^s4^.7^co, ^mAustin, Texas, 78760
[phone] FAX:[phone]
Copyright © Cirrus Logic, Inc. 2005
(Al^Cl R^opig^yh^rt^igs^hR^t e^©se^Crv^rye^sd^t)^{al Semiconductor Corporation 1996}
(All Rights Reserved)
S^ME^AP^Y‘0⁹5⁶
D_DS1_S5₁6₅P₆P_F12
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