MAS9191AJ MAS [Micro Analog systems], MAS9191AJ Datasheet - Page 2

• Manufacturer Part Number: MAS9191AJ
• Description: Single Chip AMPS/ETACS/NAMPS Audio/Data Processor
• Manufacturer: MAS [Micro Analog systems]

PIN CONFIGURATION
PIN DESCRIPTION
TXACCOUT
TAUDOUT
Pin name
TXACCIN
TAUDIN
PREIN
AGND
LPFIN
COUT
VSAT
VDAT
TX
TQFP64 package
AGND
TX
TAUDOUT
TAUDIN
LPFIN
VSAT
VDAT
TXACCIN
TXACCOUT
PREIN
COUT
CAMP2I
CWCIN
CAMP20
COMPIN
MICOUT
Pin
10
11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Type
AO
AO
AO
AO
AO
AI
AI
AI
AI
G
P
Function
Signal ground. The signal ground is generated internally and is equal to
V
system ground.
Transmitted data signal output. Connect this output through a 22nF
capacitor to the transmitter.
TX audio output from the TX audio block..
TX audio input. The input for the TX audio signal, normally connected
through a 22nF capacitor to TAUDOUT
Input for TX limiter, lowpass filter or GC6 depending on the position of
switches S15 and S16. The pin is normally left unconnected.
Ground for TX. Connect to system ground.
Power supply for TX block. Use a bypass capacitor between pins VSAT
and VDAT.
TX block extra Op Amp input. See application note in the APPLICATIONS
section.
TX block Op Amp output.
Pre-emphasis filter input. Filter has a +6dB/octave (±1dB) frequency
response in the range 300Hz...3kHz.
Compressor output signal. The compression ratio is 2:1
DD
/2. The analog ground needs an external capacitor connected to
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
VREF
DEOUT
RBPFIN
RBPFOUT
VSAR
VDAR
EXPIN
EAMPOUT
EWCIN
EXPOUT
RXACCIN
RXACCOUT
RAUDIN
EST
STGT
EINR
DA9191A.000
July 31, 1997
2