®
ISO
2
-CMOS
MT9160
5 Volt Multi-Featured Codec (MFC)
Preliminary Information
Features
•
•
•
•
•
•
•
•
•
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
ISSUE 3
May 1995
Ordering Information
MT9160AE
MT9160AS
24 Pin Plastic DIP
20 Pin SOIC
-40°C to +85°C
Description
The MT9160 5V Multi-featured Codec incorporates a
built-in Filter/Codec, gain control and programmable
sidetone path as well as on-chip anti-alias filters,
reference voltage and bias source. The device
supports both A-Law and
µ-Law
requirements.
Complete telephony interfaces are provided for
connection to handset transducers. Internal register
access is provided through a serial microport
compatible
with
various
industry
standard
micro-controllers.
The device also supports
controllerless operation utilizing the default register
conditions.
The MT9160 is fabricated in Mitel's ISO
2
-CMOS
technology ensuring low power consumption and
high reliability.
Applications
•
•
•
•
•
Digital telephone sets
Cellular radio sets
Local area communications stations
Pair Gain Systems
Line cards
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
7-77
MITEL [ MITEL NETWORKS CORPORATION ]
