Am79213/Am79C203/031
Advanced Subscriber Line Interface Circuit (ASLIC™) Device
Advanced Subscriber Line Audio-Processing Circuit
(ASLAC™) Device
DISTINCTIVE CHARACTERISTICS
Performs all of the functions of a codec-filter
Single channel architecture
Performs Battery-feed, Ring-trip, Signaling,
Coding, Hybrid and Test (BORSCHT) functions
Single hardware design meets multiple country
requirements through software programming
Industry standard PCM interface with full-time
slot assignment
Monitor of two-wire interface voltage and current
for subscriber line diagnostics
Low idle power per line
On-hook transmission
Only battery and +5 V supplies needed
Exceeds LSSGR and CCITT central office
requirements
Off-hook and ground-key detectors with
programmable thresholds
Programmable line feed characteristics
independent of battery voltage
Built-in voice path test modes
Analog and digital hybrid balance capability
Adaptive hybrid balance capability
Linear power feed with power management and
thermal shutdown features
Abrupt and smooth polarity reversal
Power-cross detection in Ringing and Non-
ringing states
Software programmable
—
—
—
—
—
—
—
DC loop feed characteristics and current limit
Loop supervision detection thresholds
Off-hook detect debounce interval
Two-wire AC impedance
Transhybrid balance
Transmit and receive gains
Equalization
— Digital I/O pins
— A-law/µ-law selection
Linear data available on PCM ports for custom
compression and expansion
Compatible with inexpensive protection
networks. Accommodates low tolerance fuse
resistors while maintaining longitudinal balance
to Bellcore specifications.
Power/Service Denial state
Small physical size
Integrated ring trip function
Four relay drivers with built-in energy
absorption zener diodes
Synchronized ring relay operation: zero volts ac
on, zero current off
Software enabled Normal or Automatic Ring-Trip
state
On-chip 12 kHz and 16 kHz metering generation
with on and off meter pulse shaping
Supports loop-start and ground-start signaling
0°C to +70°C commercial operation guaranteed
by production testing
–40°C to +85°C temperature range operation
available
Standard microprocessor interface
Publication#
080160
Rev:
D
Amendment:
/0
Issue Date:
April 2000
TABLE OF CONTENTS
Distinctive Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Linecard Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ASLAC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
32-Pin PLCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
44-Pin PLCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ASLAC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ASLIC/ASLAC Devices Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Absolute Maximum Electrical and Thermal Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ASLAC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operating ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ASLIC Device Relay Driver Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Switching Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Microprocessor Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Input and Output Waveforms for AC Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Master Clock Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Microprocessor Interface (Input Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Microprocessor Interface (Output Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PCM Highway Timing for XE = 0 (Transmit on Negative PCLK Edge) . . . . . . . . . . . . . . . . . 36
PCM Highway Timing for XE = 1 (Transmit on Positive PCLK Edge) . . . . . . . . . . . . . . . . . 37
ASLIC/ASLAC Devices Linecard Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Programmable Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
General Description of CSD Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Physical Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PL032 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PL044 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2
Am79213/Am79C203/031 Data Sheet
LIST OF FIGURES
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Transmit and Receive Path Attenuation vs. Frequency . . . . . . . . . . . . . . . . . . . 26
Group Delay Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
A-law Gain Linearity with Tone Input (Both Paths) . . . . . . . . . . . . . . . . . . . . . . . 28
µ-law Gain Linearity with Tone Input (Both Paths) . . . . . . . . . . . . . . . . . . . . . . . 28
Total Distortion with Tone Input (Both Paths) . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
A/A Overload Compression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
ASLIC/ASLAC Typical Linecard Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
LIST OF TABLES
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ASLIC Device DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ASLIC Device Relay Driver Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ASLIC Device Transmission Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ASLAC Device DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ASLAC Device Transmission and Signaling Specifications . . . . . . . . . . . . . . . . 22
Microprocessor Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PCM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Master Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
User-Programmable Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
ASLIC/ASLAC Devices Linecard Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
ASLIC/ASLAC Products
3
The Am79213/Am79C203/031 Advanced Subscriber
Line Interface chip set implements a universal telephone
line interface function. This enables the design of a single,
low cost, high performance, fully software programmable
line interface card for multiple country applications world
wide. All AC, DC, and signaling parameters are fully
programmable via the microprocessor interface.
Additionally, the ASLIC device and ASLAC device have
integrated self test and line test capabilities to resolve
faults to the line or line circuit. The integrated test
capability is crucial for remote applications where
dedicated test hardware is not cost effective. The
Technical Reference, PID 21325A is recommended to be
used with this document.
LINECARD BLOCK DIAGRAM
Loop Voltage
Sense Resistors
Transmit
Receive
RFA
A(Tip)
Ring
and
Test
Relays
AD
SA
ASLIC
Device
SB
BD
RFB
PCM
Relay Driver Outputs
ASLIC Device Operat-
ing State
Relay Driver Inputs
DC Feed Control
Metering
Loop Voltage Monitor
Loop Current Monitor
ASLAC
Device
MPI
MPI and PCM Backplane
B(Ring)
Ring-Feed
Resistor
Ringer
Supply
Ringing-Current
Sense Resistors
4
Am79213/Am79C203/031 Data Sheet
ORDERING INFORMATION
ASLIC Device
Must order Am79C203 or Am79C2031 with the device below.
Am79213
J
C
TEMPERATURE RANGE
C = Commercial (0°C to 70°C)*
PACKAGE TYPE
J = 32-pin Plastic Leaded Chip Carrier (PL 032)
DEVICE NUMBER/DESCRIPTION
Am79213
Advanced Subscriber Line Interface Circuit
Valid Combinations
Am79213
JC
Valid Combinations
Valid Combinations list configurations planned to
be supported in volume for this device. Consult
the local Legerity sales office to confirm availabil-
ity of specific valid combinations and to check on
newly released combinations.
Note:
* Functionality of the device from 0°C to +70°C is guaranteed by production testing. Performance from –40°C to +85°C
is guaranteed by characterization and periodic sampling of production units.
ASLIC/ASLAC Products
5
京公网安备 11010802033920号
EEWORLD
