n Overview
The AN6150 is an integrated circuit designed for telephone
speech network. It has the basic function necessary to apply a
sound signal onto the line and is applicable for various types of
handsets.
n Features
• Wide operating voltage range : 3 to 11.5V
• Built-in amplifiers for “Dial Tone” and “DTMF”
• Amplifier output switchable.
• Each amplifier gain automatically changeable depending on
line current.
• Various types of microphones and receivers are available.
AN6150
Speech Network Circuit
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
19.2
–
0.3
1.22
–
0.25
3 to 15˚
Unit : mm
6.2– 0.3
0.5
–
0.1
2.54
5.2– 0.25 3.05– 0.25
7.62– 0.25
0.3
+
0.1
– 0.05
1.1– 0.25
16-pin DIL Plastic Package (DIP016-P-0300D)
16 15 14 13 12 11 10 9
1 2 34
GND V2 V1 AP
5678
RO1 RO2 RF RI
VL VLC ST SF MIC DT DM KT
V-I
Control
2V
REG
1V
REG
Current
Check
ATT
ATT
ATT
SEND
Main
Amp.
MIC
Pre-
Amp.
DTMF
Pre-
Amp.
REC
Pre-
Amp.
REC
Main
Amp.
KT
Pre-
Amp.
Logic
n Block Diagram