4-1
Semiconductor
ADVANCE INFORMATION
January 1997
HC5519
SLIC
Subscriber Line Interface Circuit
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
Applications
CO/PABX Line Circuits
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.
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG. NO.
HC5519CQ
0 to 70
80 Ld MQFP
Q80.14x20
Pinout
HC5519 (MQFP)
TOP VIEW
Block Diagram
80 79 78 77
75
73
71
69 68 67
65
66
70
72
74
76
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26 27 28 29 30 31 32
34
36
38
40
39
37
35
33
25
BCLKR
BCLKX
MCLKX
FSR
FSX
DR
DX
CO
CS
CI
TSX
SUP
TIP
TIPSEN
STATUS AND
CONTROL
TEST CONTROL
2-WIRE
INTERFACE
RING
CONTROL
AGND
BIAS
RINGSEN
RING
RX
VFRO
VFXI
RN
TX TX4W
TA
TB
RBL
RBH
RD
CRTD
POWER
MANAGEMENT
RPSB
RPST
RPSG
RGND
BGND
GNDA
GNDD
V
CC
CDC
V
EE
CP
V
BAT
RDC
PCM
INTERFACE
RPSR
BATTERY
REFERENCE
PROGRAMMING INTERFACE
A/D
D/A
KZO
AND
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1997
File Number
4232
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