CS61310 Datasheet, PDF (1/30 Pages) Cirrus Logic – T1 INE INTERFACE UNIT

CS61310
T1 Line Interface Unit
Features
Provides T1 line interface
No crystal needed for jitter attenuation
Greater than 14 dB of transmit return loss
Meets AT&T 62411 jitter tolerance and
attenuation requirements
Meets ANSI T1.231B requirements for LOS and
AIS
AWG for user programmable pulse shapes
TX driver high impedance / low power control
Generation and detection of loop up / loop down
signaling
Selectable unipolar or bipolar I/O
Compliant with:
— American National Standards (ANSI): T1.102, T1.105,
T1.403, T1.408, and T1.231
— FCC Rules and Regulations: Part 68 and Part 15
— AT&T Publication 62411
— TR-NET-00499
Description
The CS61310 is a T1 primary rate line interface unit. It
combines the complete analog transmit-and-receive cir-
cuitry for a single, full-duplex interface at T1 rates. The
device is pin- and function-compatible with the Level
One LXT310.
Enhanced functionality is available through an extended
register set, allowing custom pulse shape generation as
well as generation and detection of loop up and loop
down codes. The CS61310 features crystal-less jitter
attenuation.
ORDERING INFORMATION
CS61310-IL
28-pin PLCC
T CLK
TDATA/T POS
UBS/TNEG
JASEL
E
2N
C
3_O
4
D
E
R
11
JITTER
ATTEN
REMOTE
LOOPBACK
LOCAL
LOOPBACK
(DIGITAL)
RCLK
RDATA/RPOS
BP V/ RNEG
D
8E
7
C
O
6
D
E
R
JITTER
ATTEN
TRANSMIT
TIMING &
CONTROL
PULSE
SHAPING
CIRCUITRY
ROM / RAM
LINE DRIVERS
TAOS Enable
LBO Select
SERIAL
PORT
REGISTERS & CONTROL LOGIC
LOS/
NLOOP
Clear
T IMING
& DATA
RECOVERY
LLOOP
Enable
EQUALIZER
CONTROL
SLICERS
& PEAK
DETECT
NOISE &
CROSSTALK
FILTERS
LOCAL
LOOPBACK
(ANALOG)
MAGNITUDE
EQUALIZER
AGC
13
TTIP
16
TRING
28
CLKE/TAOS
26
CS/RLOOP
27
SCLK/LLOOP
24
SDI/LBO1
25
SDO/LBO2
18
LATN
19
RTIP
20
RRING
23
INT /NLOOP
12
LOS
INBAND
NLOOP
& LOS
PROCESSOR
RECEIVE
CLOCK
GENERATOR
9
XTALIN
10
XTALOUT
1
MCLK
5
21
22
14
15
MODE RV+ RGND TGND TV+
Final Product Information
Cirrus Logic, Inc.
http://www.cirrus.com
This document contains advanced information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
© Copyright Cirrus Logic, Inc. 2003
(All Rights Reserved)
DS440F1
FEB ‘03
1