AC4810xA-C
Four/Five Channel Voice over Packet Processor
Independent multi-
channel operation
Toll quality voice
compression
Robust bandwidth-
saving fax relay
Small footprint
Low power consumption
Low per-channel cost
Features
Four/Five channels of Voice over Packet
coders, including G.729A, G.723.1, G.727,
G.726, G.711 and NetCoder
User-selectable silence suppression per
G.723.1 annex A, G.729 annex B, and other
voice coders
Complete voice-band signaling support
G.168, 25ms tail adaptive echo canceler
PCM highway trunk interface for voice and
signaling, parallel interface for control and
packet transfer to host processor
T.38 compliant fax relay at 2.4
脩
14.4 kbps
High performance Voice Activity Detector
(VAD) and Comfort Noise Generator
(CNG)
Optional auto-switch to PCM or ADPCM
upon fax/data detection
Tone and
signaling
detector
PCM in
Echo
cancelle
r
Speech
encoder
Fax/Data
demodulator
Packetizer
Packetizer
Host
CPU
Network
I/F
Data
Network
Analog
I/F
Codec
PCM
A
udio
C
od
PCM CLK
PCM FS
Host
interface
Fax/Data
modulator
Multiplexer
Speech
decoder
Tone and
signaling
generator
Depacketizer
PCM out
Voice over IP Gateways
Integrated Access
Devices (IAD)
Multi Service Access
Platforms
Edge Switching
Equipment
DSL Access Multiplexers
Packetized Cable
Telephony
Description
The
AC4810xA-C
voice over packet processor
combines four/five channels of toll quality low
bit rate voice compression, G3 fax relay, and
complete voice band processing functions in a
single device.
The voice codec can be independently selected
by the user for each channel on the fly. Also
included are an adaptive, G.168 compliant
echo canceler and a high quality DTMF and
user defined tone signaling detector and
generator, thereby constituting the ideal voice
processing system on chip.
Additional processing features of the device
include: selectable u/A-law PCM codec interface;
DTMF (TIA 464B) detection and generation;
MFR1, MFR2, AC15, SS4, SS5 and user defined
call progress tones detection and generation;
and ABCD or E&M trunk signaling.
Featuring high channel density, low power
consumption and a compact footprint, the
AC4810xA-C
enables the rapid development
of high density gateways, access devices and
routing/switching equipment.
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