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MAS9090BS

Description
low voltage 14-bit linear codec
File Size562KB,30 Pages
ManufacturerMicronas ( TDK )
Websitehttps://www.micronas.com
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MAS9090BS Overview

low voltage 14-bit linear codec

DA9090B.001
January 14, 1998
MAS9090B
LOW VOLTAGE 14-BIT LINEAR CODEC
14-bit linear analog to digital and digital to analog converters
8-bit A-law or
µ-law
companded analog to digital and digital to
analog converters
DESCRIPTION
The MAS9090 is a high performance low power PCM CODEC and filter device tailored to implement the audio
front-end functions required by the low voltage/low power consumption digital terminals.
FEATURES
Single 2.7-3.6 V or 4.5-5.5 V supply selectable
-30°C to 85°C temperature operation range
11 mW operating power (typ. at 2.7V)
15 mW operating power (typ. at 3.0V)
27 mW operating power (typ. at 3.6V)
38 mW operating power (typ. at 5.0V)
Digital bandpass filters
±0.5
dB absolute gain accuracy (untrimmed)
28-pin SO and 44-pin TQFP packages
Pin compatible with ST5090 and ST5092
APPLICATIONS
GSM digital cellular telephones
Battery operated audio front-ends for DSPs
ISDN Terminals
CT2 and DECT digital cordless telephones
BLOCK DIAGRAM
MIC3-
MIC2-
MIC1-
MUX
PreAmp
TX
Gain
EN
PCM
A to D
Converter
DE
VS
MIC3+
MIC2+
MIC1+
TE
1
1
0...22.5 dB
1.5 dB step
Tone
Gain
Bandpass
Filter
Compressor
TX
Register
TX
MUX
Clock
Generator
Sidetone
Gain
MCLK
FS
Ring/Tone/DTMF
Generator
BE
BZ
4
0...-27 dB
3 dB step
Buzzer Control
OE1
2
-12.5...-27.5 dB
1 dB step
Serial
Control
Interface
EN
CO
CI
CS
CCLK
LO
SP1-
SP1+
RTE
RX Gain
(SP1/SP2)
Buffer
Amplifiers
PCM
D to A
Converter
SI
SE
3
3
+
+
Bandpass
Filter
Expander
RX
Register
RX
SP2-
SP2+
0...-30 dB
2 dB step
OE2
1

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