MT93L04 Zarlink Semiconductor, MT93L04 Datasheet - Page 2

• Manufacturer Part Number: MT93L04
• Description: 128-channel Voice Echo Canceller
• Manufacturer: Zarlink Semiconductor

Features of Single MT93L00
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MCLK
Independent multiple channels of echo cancellation; from 32 channels of 64 ms to 16 channels of 128 ms
with the ability to mix channels at 128 ms or 64 ms in any combination
Independent Power Down mode for each group of 2 channels for power management
ITU-T G.165 and G.168 compliant
Field proven, high quality performance
Compatible to ST-BUS and GCI interface at 2 Mb/s serial PCM
PCM coding, µ/A-Law ITU-T G.711 or sign magnitude
Per channel Fax/Modem G.164 2100 Hz or G.165 2100 Hz phase reversal Tone Disable
Per channel echo canceller parameters control
Transparent data transfer and mute
Fast reconvergence on echo path changes
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 V pads and 1.8 V Logic core operation with 5-Volt tolerant inputs
No external memory required
Non-multiplexed microprocessor interface
IEEE-1149.1 (JTAG) Test Access Port
Fsel
Rin
Sin
C4i
F0i
Figure 2 - Functional Block Diagram for Single MT93L00 (32 channels)
Parallel
Timing
Serial
PLL
Unit
to
V
DD1 (3.3V)
DS CS R/W A10-A0 DTA
Group 12
ECA/ECB
ECA/ECB
ECA/ECB
ECA/ECB
Group 0
Group 4
Group 8
Microprocessor Interface
Zarlink Semiconductor Inc.
Group 13
Echo Canceller Pool
ECA/ECB
ECA/ECB
ECA/ECB
ECA/ECB
Group 1
Group 5
Group 9
V
SS
MT93L04
D7-D0
2
Group 10
Group 14
ECA/ECB
ECA/ECB
ECA/ECB
ECA/ECB
Group 2
Group 6
IRQ
V
DD2 (1.8V)
TMS
Group 11
Group 15
ECA/ECB
ECA/ECB
ECA/ECB
ECA/ECB
Group 3
Group 7
TDI TDO TCK TRST
Test Port
Note:
Refer to Figure 4
for Echo Canceller
block diagram
Parallel
Serial
ODE
to
Data Sheet
Rout
Sout
IC0
RESET