ISO2-CMOS MT9160B/61B
5 Volt Multi-Featured Codec (MFC)
Advance Information
DS5145
ISSUE 3
March 1999
Features
Ordering Information
•
•
Improved idle channel noise over MT9160
MT9161BE
24 Pin Plastic DIP(600 mil)
24 Pin Plastic DIP(600 mil)
24 Pin SOIC
20 Pin SOIC
24 Pin SSOP
MT9160BE
MT9161BS
MT9160BS
MT9161BN
MT9160BN
MT9161 version features a delayed framing
pulse in SSI and ST-BUS modes to facilitate
cascaded devices
•
•
Programmable µ-Law/A-Law Codec and Filters
20 Pin SSOP
Programmable ITU-T G.711/sign-magnitude
coding
-40°C to +85°C
•
•
Programmable transmit, receive and side-tone
gains
Description
Fully differential interface to handset
transducers - including 300 ohm receiver driver
The MT9160B/61B 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 ITU-T and sign-magnitude
A-Law and µ-Law requirements.
•
•
•
•
•
Flexible digital interface including ST-BUS/SSI
Serial microport or default controllerless mode
Single 5 volt supply
Low power operation
ITU-T G.714 compliant
Complete telephony interfaces are provided for
connection to handset transducers. Internal register
access is provided through a serial microport
Applications
compatible
with
various
industry
standard
micro-controllers. The device also supports
controllerless operation utilizing the default register
conditions.
•
•
•
Digital telephone sets
Cellular radio sets
Local area communications stations
The MT9160B/61B is fabricated in Zarlink's
2
ISO -CMOS technology ensuring low power
consumption and high reliability.
VSSD
VDD
FILTER/CODEC GAIN
M -
ENCODER
DECODER
7dB
VSSA
M +
-7dB
Transducer
Interface
VBias
VRef
HSPKR +
HSPKR -
Din
Timing
Dout
Flexible
Digital
Interface
STB/F0i
ST-BUS
C & D
Channels
CLOCKin
STBd/FOod
(MT9161B only)
Serial Microport
A/µ/IRQ
IC
CS
DATA1 DATA2
SCLK
PWRST
Figure 1 - Functional Block Diagram
79