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TEA1112 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. TEA1112
Description  Low voltage versatile telephone transmission circuits with dialler interface
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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TEA1112 Datasheet(HTML) 4 Page - NXP Semiconductors

 
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1997 Mar 26
4
Philips Semiconductors
Product specification
Low voltage versatile telephone
transmission circuits with dialler interface
TEA1112; TEA1112A
PINNING
SYMBOL
PIN
DESCRIPTION
TEA1112
TEA1112A
LN
1
1
positive line terminal
SLPE
2
2
slope (DC resistance) adjustment
ILED
3
3
available output current to drive a LED
REG
4
4
line voltage regulator decoupling
GAS
5
5
sending gain adjustment
MMUTE
6
microphone mute input
MMUTE
6
microphone mute input (active LOW)
DTMF
7
7
dual-tone multi-frequency input
MUTE
8
mute input to select speech or dialling mode
MUTE
8
mute input to select speech or dialling mode (active LOW)
IR
9
9
receiving amplifier input
AGC
10
10
automatic gain control/line loss compensation
MIC
11
11
inverting microphone amplifier input
MIC+
12
12
non-inverting microphone amplifier input
VEE
13
13
negative line terminal
QR
14
14
receiving amplifier output
GAR
15
15
receive gain adjustment
VCC
16
16
supply voltage for speech circuit and peripherals
Fig.2 Pin configuration (TEA1112).
handbook, halfpage
TEA1112
MBE791
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
GAR
QR
VEE
MIC
+
MIC
AGC
IR
LN
SLPE
ILED
REG
GAS
MMUTE
DTMF
MUTE
Fig.3 Pin configuration (TEA1112A).
handbook, halfpage
TEA1112A
MBE790
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
GAR
QR
VEE
MIC
+
MIC
AGC
IR
LN
SLPE
ILED
REG
GAS
MMUTE
DTMF
MUTE


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