ISO
2
-CMOS
MT91L62
3 Volt Single Rail Codec
Advance Information
Features
•
•
•
•
•
•
•
•
•
Single 2.7-3.6 volt supply
Programmable
µ−law/A-law
Codec and filters
Fully differential to output driver
SSI digital interface
Individual transmit and receive mute controls
0dB gain in receive path
6dB gain in transmit path
Low power operation
ITU-T G.714 compliant
The MT91L62 3V single rail Codec incorporates a
built-in Filter/Codec, transmit anti-alias filter, a
reference voltage and bias source. The device
supports both A-law and
µ-law
requirements. The
MT91L62 is a true 3V device employing a fully
differential architecture to ensure wide dynamic
range.
An analog output driver is provided, capable of
driving a 20k ohm load.
The MT91L62 is fabricated in Mitel's ISO
2
-CMOS
technology ensuring low power consumption and
high reliability.
MT91L62AE
MT91L62AS
MT91L62AN
20 Pin Plastic DIP (300 mil)
20 Pin SOIC
20 Pin SSOP
DS5179
ISSUE 4
August 1999
Ordering Information
-40°C to +85°C
Description
Applications
•
•
•
•
Cellular radio sets
Local area communications stations
Line cards
Battery operated equipment
FILTER/CODEC GAIN
VDD
VSSA
VBias
VRef
AIN+
ENCODER
DECODER
6dB
0 dB
Analog
Interface
AIN-
AOUT +
AOUT -
Din
Dout
STB
CLOCKin
PCM
Serial
Interface
Timing
Control
PWRST
IC
A/µ
CSL0
CSL1 CSL2 RXMute TXMute
Figure 1 - Functional Block Diagram
7-173
MITEL [ MITEL NETWORKS CORPORATION ]
