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XRT5683A Datasheet

  • XRT5683A

  • PCM Line Interface Chip

  • 12頁

  • EXAR   EXAR

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XR-T5683A
...the analog plus company
TM
PCM Line
Interface Chip
June 1997-3
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
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
ORDERING INFORMATION
Part No.
XR-T5683AIP
XR-T5683AID
Package
18 Lead 300 Mil PDIP
18 Lead 300 Mil JEDEC SOIC
Operating
Temperature Range
-40擄C to +85擄C
-40擄C to +85擄C
attenuated by -10dB cable loss at one-half the bit rate. At
nominal supply voltage operation, the typical current
consumption is 40mA.
BLOCK DIAGRAM
1
PDC
Positive
Threshold
Comparator
TTLBuffer
11 RPOS
RXDATA+ 2
RXDATA- 3
TTLBuffer
Negative
Threshold
Comparator
8 RCLK
4
TTLBuffer
TE
Peak
Detector
10 RNEG
6
TANK BIAS
BIAS
RV
CC
9
RGND 7
TV
CC
18
TPOS 17
TCLK 16
TNEG 12
TGND 14
Open Collector
Driver
BIAS
5
BIAS
Open Collector
Driver
13 TXDATA+
15 TXDATA-
Figure 1. Block Diagram
Rev. 2.01
E1995
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
z
(510) 668-7000
z
FAX (510) 668-7017
1

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