AN6152 Datasheet, PDF (1/3 Pages) Panasonic Semiconductor – Speech Network Circuit

AN6152
Speech Network Circuit
s Overview
The AN6152 is an integrated circuit designed for telephone
speech network. It has the basic function which is necessary to
apply a sound signal onto the line and excellent in branch per-
formance.
s Features
• Wide operating voltage range : 3 to 11.5V
• Built-in amplifiers for “Dial Tone” and “DTMF”
• Amplifier
• Each amplifier gain automaticaly changeable depending on
line current.
• Various types of microphone and receiver are available.
Unit : mm
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
6.2±0.3
1.1±0.25
5.2±0.25 3.05±0.25
3 to 15˚
0.3^{+–0.01.05}
7.62±0.25
16-pin DIP Package (DIP016-P-0300D)
s Block Diagram
VCC
VL
16
15
Current
Source
ST
AP
NF
MI2
MI1
DT
14
13
12
11
10
9
ATT
Control
MIC
Pre Amp.
SEND
Main Amp.
ATT
DTMF
Pre Amp.
KT
Pre Amp.
REC
Main Amp.
ATT
REC
Pre Amp.
Logic
VREF
1
2
3
4
5
6
7
8
GND
RO1
RO2
RF
RI
KT
DM
Vr