TEA1110A_10 Datasheet, PDF (2/9 Pages) Unisonic Technologies – LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

TEA1110A
„ PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
LN 1
SLPE 2
REG 3
NC 4
DTMF 5
MUTE 6
IR 7
14 V_CC
13 GAR
12 QR
11 V_EE
10 MIC+
9 MIC-
8 AGC
„ PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PAD NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SYMBOL
LN
SLPE
REG
NC
DTMF
MUTE
IR
AGC
MIC-
MIC+
V_EE
QR
GAR
V_CC
DESCRIPTION
Positive line terminal
Slope (DC resistance) adjustment
Line voltage regulator decoupling
Not connected
Dual-tone multi-frequency input
Mute input to select speech or dialing mode (active LOW)
Receiving amplifier input
Automatic gain control/line loss compensation
Inverting microphone amplifier input
Non-inverting microphone amplifier input
Negative line terminal
Earpiece amplifier output
Earpiece amplifier gain adjustment
Supply voltage for internal circuit
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 9
QW-R108-014.C