MT9196 Datasheet, PDF (1/38 Pages) Mitel Networks Corporation – ISO2-CMOS Integrated Digital Phone Circuit (IDPC)

ISO²-CMOS MT9196
®
Integrated Digital Phone Circuit (IDPC)
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
• Digital DTMF and single tone generation
• Fully differential interface to handset
transducers
• Auxiliary analog interface
• Interface to ST-BUS/SSI (compatible with GCI)
• Serial microport control
• Single 5 volt supply, low power operation
• Anti-howl circuit for group listening
speakerphone applications
Applications
• Digital telephone sets
• Wireless telephones
• Local area communications stations
ISSUE 3
Ordering Information
MT9196AE 28 Pin Plastic DIP
MT9196AP 28 Pin Plastic LCC
MT9196AS 28 Pin SOIC
-40°C to +85°C
May 1995
Description
The MT9196 Integrated Digital Phone Circuit (IDPC)
is designed for use in digital phone products. The
device incorporates a built-in Filter/Codec, digital
gain pads, DTMF generator and tone ringer.
Complete telephony interfaces are provided for
connecting to handset and speakerphone
transducers. Internal register access is provided
through a serial microport compatible with various
industry standard micro-controllers.
The device is fabricated in Mitel's ISO²-CMOS
technology ensuring low power consumption and
high reliability.
VSSD
VDD
VSSA
VSS SPKR
VBias
VRef
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Transducer
Interface
Din
Dout
STB/F0i
CLOCKin
XSTL2
Flexible
Digital
Interface
Timing
ST-BUS
C&D
Channels
Serial Microport
WD
PWRST IC
IRQ CS
DATA1 DATA2 SCLK
Figure 1 - Functional Block Diagram
AUXin
AUXout
MIC +
M-
M+
HSPKR +
HSPKR -
SPKR +
SPKR -
7-127