®
ISO
2
-CMOS
MT9160B
5 Volt Multi-Featured Codec (MFC)
Advance Information
Features
•
•
•
•
•
•
•
•
•
•
Improved idle channel noise performance
Programmable
µ-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
MT9160BE
MT9160BS
ISSUE 1
May 1995
Ordering Information
24 Pin Plastic DIP
20 Pin SOIC
-40°C to +85°C
Description
The MT9160B 5V Multi-featured
replacement for the MT9160.
Codec
is
a
The major difference is the improvement in idle
channel noise performance over and above that of
the MT9160.
Typical Performance
Transmit
Applications
•
•
•
•
•
Digital telephone sets
Cellular radio sets
Local area communications stations
Pair Gain Systems
Line cards
10 dBrnC0
µ-law
-70 dBm0p A-Law
Receive
9 dBrnC0
µ-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.
VSSD
VDD
VSSA
VBias
VRef
FILTER/CODEC GAIN
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ENCODER
7dB
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DECODER -7dB
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M-
M+
Transducer
Interface
HSPKR +
HSPKR -
Din
Dout
STB/F0i
CLOCKin
Flexible
Digital
Interface
Timing
ST-BUS
C&D
Channels
Serial Microport
A/µ/IRQ
PWRST
IC
CS
DATA1
DATA2
SCLK
Figure 1 - Functional Block Diagram
7-105