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MITEL
MITEL

MT9160 Datasheet Preview

MT9160 Datasheet

ISO2-CMOS 5 Volt Multi-Featured Codec

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MT9160 pdf
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ISO2-CMOS MT9160
5 Volt Multi-Featured Codec (MFC)
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
• Fully differential interface to handset
transducers - including 300 ohm receiver driver
• Flexible digital interface including ST-BUS/SSI
• Serial microport or default controllerless mode
• Single 5 volt supply
• Low power operation
• CCITT G.714 compliant
Applications
• Digital telephone sets
• Cellular radio sets
• Local area communications stations
• Pair Gain Systems
• Line cards
ISSUE 3
Ordering Information
May 1995
MT9160AE
MT9160AS
24 Pin Plastic DIP
20 Pin SOIC
-40°C to +85°C
Description
The MT9160 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 A-Law and µ-Law requirements.
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 device also supports
controllerless operation utilizing the default register
conditions.
The MT9160 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
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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
7-77



MITEL
MITEL

MT9160 Datasheet Preview

MT9160 Datasheet

ISO2-CMOS 5 Volt Multi-Featured Codec

No Preview Available !

MT9160 pdf
MT9160
Preliminary Information
20 PIN SOIC
VBias
VRef
PWRST
IC
A/µ/IRQ
VSSD
CS
SCLK
DATA1
DATA2
1
2
3
4
5
6
7
8
9
10
20 M +
19 M -
18 VSSA
17 HSPKR +
16 HSPKR -
15 VDD
14 CLOCKin
13 STB/F0i
12 Din
11 Dout
24 PIN PDIP
VBias
VRef
NC
PWRST
IC
A/µ/IRQ
VSSD
CS
NC
SCLK
DATA1
DATA2
1
2
3
4
5
6
7
8
9
10
11
12
24 M +
23 M -
22 VSSA
21 NC
20 HSPKR +
19 HSPKR -
18 VDD
17 CLOCKin
16 NC
15 STB/F0i
14 Din
13 Dout
Pin Description
Figure 2 - Pin Connections
Pin #
SOIC DIP
Name
Description
1 1 VBias Bias Voltage (Output). (VDD/2) volts is available at this pin for biasing external
amplifiers. Connect 0.1 µF capacitor to VSSA.
22
VRef
Reference Voltage for Codec (Output). Nominally [(VDD/2)-1.5] volts. Used
internally. Connect 0.1 µF capacitor to VSSA.
3 4 PWRST Power-up Reset (Input). CMOS compatible input with Schmitt Trigger (active low).
45
IC Internal Connection. Tie externally to VSS for normal operation.
5 6 A/µ/IRQ A/µ - When internal control bit DEn = 0 this CMOS level compatible input pin governs
the companding law used by the filter/Codec; µ-Law when tied to VSS and A-Law
when tied to VDD. Logically OR’ed with A/µ register bit.
IRQ - When internal control bit DEn = 1 this pin becomes an open-drain interrupt
output signalling valid access to the D-Channel registers in ST-BUS mode.
6 7 VSSD Digital Ground. Nominally 0 volts.
78
CS Chip Select (Input). This input signal is used to select the device for microport data
transfers. Active low. TTL level compatible.
8 10 SCLK Serial Port Synchronous Clock (Input). Data clock for microport. TTL level
compatible.
9 11 DATA 1 Bidirectional Serial Data. Port for microprocessor serial data transfer. In Motorola/
National mode of operation, this pin becomes the data transmit pin only and data
receive is performed on the DATA 2 pin. Input TTL level compatible.
10 12 DATA 2 Serial Data Receive. In Motorola/National mode of operation, this pin is used for
data receive. In Intel mode, serial data transmit and receive are performed on the
DATA 1 pin and DATA 2 is disconnected. Input TTL level compatible.
7-78


Part Number MT9160
Description ISO2-CMOS 5 Volt Multi-Featured Codec
Maker MITEL
Total Page 28 Pages
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