MT91L60 Datasheet, PDF (1/20 Pages) Mitel Networks Corporation – ISO2-CMOS 3 Volt Multi-Featured Codec (MFC)

ISO²-CMOS MT91L60
®
3 Volt Multi-Featured Codec (MFC)
Advance Information
Features
• Single 2.7-3.6 volt supply operation
• Programmable µ-Law/A-Law Codec and Filters
• Programmable ITU-T (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
• Single 3 volt supply
• Low power operation
• ITU-T G.714 compliant
• Multiple power down modes
Applications
• Battery operated equipment
• Digital telephone sets
• Cellular radio sets
• Local area communications stations
• Pair Gain Systems
• Line cards
ISSUE 1
May 1995
Ordering Information
MT91L60AE 24 Pin Plastic DIP
MT91L60AS 20 Pin SOIC
-40°C to +85°C
Description
The MT91L60 3V 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. The MT91L60 is a true 3V device
employing a fully differential architecture to ensure
wide dynamic range.
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 MT91L60 is fabricated in Mitel's ISO²-CMOS
technology ensuring low power consumption and
high reliability.
VSSD
VDD
VSSA
VBias
VRef
Din
Dout
STB/F0i
CLOCKin
Flexible
Digital
Interface
FILTER/CODEC GAIN
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Transducer
Interface
Timing
ST-BUS
C&D
Channels
Serial Microport
M-
M+
HSPKR +
HSPKR -
A/µ/IRQ
PWRST IC
CS DATA1 DATA2 SCLK
Figure 1 - Functional Block Diagram
7-107