Semiconductor
HC5519
SLIC
Subscriber Line Interface Circuit
Description
The HC5519 SLIC is designed to meet the technical require-
ments of the China Telecommunications network. It provides
many of the BORSCHT functions associated with a Central
Office line circuit.
The HC5519 consists of an A-Law Codec/Filter, a 2-wire
interface circuit, an impedance control circuit, a ringing con-
trol circuit, a power management circuit, and a serial control
interface circuit which is used to program and monitor the
operation of the device.
The integration of the line interface and coder/decoder func-
tions into a 80 pin MQFP surface mount package and standard
value surface mount components avoids the need for costly
hybrid packaging techniques and offers the superior reliability of
an integrated solution for dense circuit board layouts.
The SLIC combines Harris’ patented Bonded Wafer
Dielectrically Isolated fabrication techniques with a state of
the art CMOS process to produce the world’s most compact
line circuit signal processing solution.
ADVANCE INFORMATION
January 1997
Features
• Complete A-Law Codec, Filter, and SLIC Functions
with Serial Digital Control and Status Monitoring
• 30mA Current Limit on Normal or Reverse Loop Feed
• Constant Voltage (Resistance) Feed on Long Loops
• On-Hook Transmission
• Switch Hook Detection
• User Selectable 2-Wire Complex Impedance
• User Selectable Receive Gain
• User Selectable Transmit Gain
• Ringing, Test-In, and Test-Out Relay Drivers
• Zero Crossing Ring Trip Detection and Ring Relay
Release
• Thermal Shutdown Protection
• Meets CCITT/China Transmission Requirements
Ordering Information
PART NUMBER
HC5519CQ
TEMP.
RANGE (
o
C)
0 to 70
PACKAGE
80 Ld MQFP
PKG. NO.
Q80.14x20
Applications
• CO/PABX Line Circuits
Pinout
HC5519 (MQFP)
TOP VIEW
Block Diagram
DR
DX
VFXI VFRO
RX TX TX4W RN
KZO
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
BCLKR
BCLKX
MCLKX
TSX
FSR
FSX
CO
CI
CS
SUP
AGND
BGND
RGND
V
BAT
V
CC
V
EE
PROGRAMMING INTERFACE
PCM
INTERFACE
A/D
AND
D/A
TIP
TIPSEN
RINGSEN
RING
TA
TB
RD
RBH
RBL
CRTD
RPSB
RPSR
RPST
RPSG
2-WIRE
INTERFACE
STATUS AND
CONTROL
TEST CONTROL
RING
CONTROL
BATTERY
REFERENCE
BIAS
POWER
MANAGEMENT
GNDD GNDA CP
RDC CDC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
©
Harris Corporation 1997
File Number
4232
4-1
HARRIS [ HARRIS CORPORATION ]
