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MT91L60AS Datasheet

  • MT91L60AS

  • ISO2-CMOS 3 Volt Multi-Featured Codec (MFC)

  • 20頁

  • MITEL

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廬
ISO
2
-CMOS
MT91L60
3 Volt Multi-Featured Codec (MFC)
Advance Information
Features
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Single 2.7-3.6 volt supply operation
Programmable
碌-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
ISSUE 1
May 1995
Ordering Information
MT91L60AE
24 Pin Plastic DIP
MT91L60AS
20 Pin SOIC
-40擄C to +85擄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
碌-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 ISO
2
-CMOS
technology ensuring low power consumption and
high reliability.
Applications
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Battery operated equipment
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/碌/IRQ
PWRST
IC
CS
DATA1
DATA2
SCLK
Figure 1 - Functional Block Diagram
7-107

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