MT91L61 MITEL, MT91L61 Datasheet
MT91L61
Manufacturer Part Number
MT91L61
Description
(MT91L60 / MT91L61) ISO2-CMOS 3 Volt Multi-Featured Codec
Manufacturer
MITEL
Datasheet
1.MT91L61.pdf
(32 pages)
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Features
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Applications
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STBd/FOod
(MT91L61only)
Single 2.7-3.6 volt supply operation
MT91L61 version features a delayed framing
pulse in SSI and ST-BUS modes to facilitate
cascaded devices
Programmable -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
Low power operation
ITU-T G.714 compliant
Multiple power down modes
Battery operated equipment
Digital telephone sets
Cellular radio sets
Local area communications stations
Pair Gain Systems
Line cards
CLOCKin
STB/F0i
VSSA
VBias
VSSD
VRef
Dout
VDD
Din
Interface
Flexible
Digital
PWRST
Figure 1 - Functional Block Diagram
Channels
ST-BUS
C & D
Timing
IC
FILTER/CODEC GAIN
ENCODER
DECODER
CS
Description
The
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 -Law requirements. The MT91L60/61 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
micro-controllers.
The MT91L60/61 is fabricated in Mitel's ISO
technology ensuring low power consumption and
high reliability.
DS5224
-7dB
3 Volt Multi-Featured Codec (MFC)
7dB
MT91L61AE
MT91L60AE
MT91L61AS
MT91L60AS
MT91L61AN
MT91L60AN
Serial Microport
DATA1
MT91L60/61
ISO
DATA2
with
Transducer
Ordering Information
Interface
2
-40 C to +85 C
-CMOS
SCLK
various
3V
ISSUE 3
24 Pin Plastic DIP (600 mil)
24 Pin Plastic DIP (600 mil)
24 Pin SOIC
20 Pin SOIC
24 Pin SSOP
20 Pin SSOP
Advance Information
Multi-featured
MT91L60/61
industry
M -
M +
HSPKR +
HSPKR -
A/ /IRQ
August 1999
standard
2
-CMOS
Codec
1
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