7-105
Features
Improved idle channel noise performance
Programmable
-Law/A-Law Codec and Filters
Programmable CCITT (G.711)/sign-magnitude
coding
Programmable transmit, receive and side-tone
gains
Fully differential interface to handset
transducers - including 300 ohm receiver driver
Flexible digital interface including ST-BUS/SSI
Serial microport or default controllerless mode
Single 5 volt supply
Low power operation
CCITT G.714 compliant
Applications
Digital telephone sets
Cellular radio sets
Local area communications stations
Pair Gain Systems
Line cards
Description
The MT9160B 5V Multi-featured Codec is a
replacement for the MT9160.
The major difference is the improvement in idle
channel noise performance over and above that of
the MT9160.
Typical Performance
Transmit
10 dBrnC0
-law
-70 dBm0p A-Law
Receive
9 dBrnC0
-law
-81 dBm0p A-Law
Another difference is that V
Bias
- V
Ref
= 1.9 Volts.
For other performance features, please refer to the
MT9160 data sheet.
Ordering Information
MT9160BE
24 Pin Plastic DIP
MT9160BS
20 Pin SOIC
-40C to +85C
Figure 1 - Functional Block Diagram
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M -
M +
HSPKR +
HSPKR -
FILTER/CODEC GAIN
ENCODER
DECODER
7dB
-7dB
Transducer
Interface
Flexible
Digital
Interface
Timing
ST-BUS
C & D
Channels
Serial Microport
A/
/IRQ
VSSD
VDD
VSSA
VBias
VRef
Din
Dout
STB/F0i
CLOCKin
PWRST
IC
CS
DATA1
DATA2
SCLK
ISSUE 1
May 1995
MT9160B
5 Volt Multi-Featured Codec (MFC)
ISO
2
-CMOS
Advance Information
PDF 
ZIP