MT9300 Mitel Networks Corporation, MT9300 Datasheet

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MT9300

Manufacturer Part Number

MT9300

Description

Multi-channel Voice Echo CANceller

Manufacturer

Mitel Networks Corporation

Datasheet

1.MT9300.pdf (29 pages)

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Features

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Independent multiple channels echo

cancellation; from 32 channels of 64ms to 16

channels of 128ms with the ability to mix

channels at 128ms or 64ms in any combination

Independent Power Down mode for each group

of 2 channels for power management

Conforms to ITU-T G.165 and G.168

Recommendations

Field proven, high quality performance

Compatible to ST-BUS and GCI interface at

2Mb/s serial PCM

PCM coding,

magnitude

Per channel Fax/Modem G.164 2100Hz or

G.165 2100Hz phase reversal Tone Disable

Per channel echo canceller parameters control

Transparent data transfer and mute

Non-Linear processor with high quality

subjective performance

Protection against narrow band signal

divergence

Offset nulling of all PCM channels

10 MHz or 20 MHz master clock operation

3.3 Volts operation with 5-Volt tolerant inputs

No external memory required

Non-multiplexed microprocessor interface

IEEE-1149.1 (JTAG) Test Access Port

MCLK

Fsel

Rin

C4i

Sin

F0i

/A-Law ITU-T G.711 or sign

V

Parallel

DD

Timing

Serial

PLL

Unit

to

V

SS

DS CS R/W A10-A0 DTA

Figure 1 - Functional Block Diagram

Group 12

ECA/ECB

ECA/ECB

ECA/ECB

ECA/ECB

Group 0

Group 4

Group 8

Microprocessor Interface

Group 13

ECA/ECB

ECA/ECB

ECA/ECB

ECA/ECB

Echo Canceller Pool

Group 1

Group 5

Group 9

D7-D0

Group 10

Group 14

DS5030

Applications

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Description

The MT9300 Voice Echo Canceller implements a

cost effective solution for telephony voice-band echo

cancellation

requirements. The MT9300 architecture contains 16

groups of two echo cancellers (ECA and ECB) which

can be conﬁgured to provide two channels of 64

milliseconds or one channel of 128 milliseconds

echo cancellation. This provides 32 channels of 64

milliseconds to 16 channels of 128 milliseconds echo

cancellation

conﬁgurations. The MT9300 supports ITU-T G.165

and G.164 tone disable requirements.

ECA/ECB

ECA/ECB

ECA/ECB

ECA/ECB

Group 2

Group 6

Multi-Channel Voice Echo Canceller

Voice over IP network gateways

Voice over ATM, Frame Relay

T1/E1/J1 multichannel echo cancellation

Wireless base stations

Echo Canceller pools

DCME, satellite and multiplexer systems

IRQ

MT9300AL

TMS

Group 11

Group 15

ECA/ECB

ECA/ECB

ECA/ECB

ECA/ECB

Group 3

Group 7

or

TDI TDO TCK TRST

conforming

Ordering Information

-40 C to +85 C

Test Port

any

Note:

Refer to Figure 3

for Echo Canceller

block diagram

ISSUE 2

Advance Information

combination

160-Pin MQFP

Parallel

Serial

ODE

to

to

ITU-T

MT9300

of

the

May 1999

Rout

Sout

IC0

RESET

G.168

two

1

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