XRT5683A Datasheet, PDF (1/12 Pages) Exar Corporation – PCM Line Interface Chip

...the analog plus company^TM
XR-T5683A
PCM Line
Interface Chip
FEATURES
D Single 5V Supply
D Receiver Input Can Be Either Balanced or
Unbalanced
D Up To 8.448Mbps Operation In Both Tx and Rx
Directions
D TTL Compatible Interface
June 1997-3
D Device Can Be Used as a Line Interface Unit With-
out Clock Recovery
APPLICATIONS
D T1, T2, E1 & E2 Rates, PCM Line Interface
D Network Multiplexing and Terminating Equipment
GENERAL DESCRIPTION
The XR-T5683A is a PCM line interface chip consisting of
both transmit and receive circuitry. This device is offered
in a plastic dual in-line (PDIP) or in a surface mount
package (SOIC). The maximum bit rate of the chip is
8.448Mbps, and the signal level to the receiver can be
attenuated by -10dB cable loss at one-half the bit rate. At
nominal supply voltage operation, the typical current
consumption is 40mA.
ORDERING INFORMATION
Part No.
XR-T5683AIP
XR-T5683AID
Package
18 Lead 300 Mil PDIP
18 Lead 300 Mil JEDEC SOIC
Operating
Temperature Range
-40°C to +85°C
-40°C to +85°C
BLOCK DIAGRAM
RXDATA+ 2
RXDATA- ₃
RV_CC 9
RGND ₇
TV_{CC 18}
TPOS 17
TCLK 16
TNEG ¹²
TGND ₁₄
Peak
Detector
BIAS
BIAS
1 _PDC
Positive
Threshold
Comparator
Negative
Threshold
Comparator
Open Collector
Driver
Open Collector
Driver
Figure 1. Block Diagram
TTL Buffer
11 RPOS
TTL Buffer
TTL Buffer
8 _RCLK
4 TE
10 _RNEG
6 TANK BIAS
5 BIAS
13 TXDATA+
15 TXDATA-
Rev. 2.01
E1995
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z [phone] z FAX [phone]
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