AN6182 Panasonic Semiconductor, AN6182 Datasheet - Page 4

• Manufacturer Part Number: AN6182
• Description: Recording and playing amplifier IC for answering telephones
• Manufacturer: Panasonic Semiconductor

Pin No.
Pin No.
21
22
23
24
10
11
12
Pin Descriptions (cont.)
Pin Descriptions
1
2
3
4
5
6
7
8
9
Loudspeaker amplifier power supply input
Loudspeaker amplifier output
Loudspeaker amplifier ground
Loudspeaker amplifier inverse input
Loudspeaker amplifier non-inverting input
Loudspeaker amplifier mute control
Preamplifier mute control
MIC/line preamplifier switching
REC/PLAY switching
VOX output
VOX detection control
Internal reference supply voltage output
PRE GND
PRE V
Symbol
MIC in
LIN in
CC
Line preamplifier input
Line receiver signals are input through a capacitor and a resistor to this pin, and then amplified to be
output from Pin18. The statuses of Pins7 and 8 enable or disable the signals. The input impedance
with ALC OFF is 10k .
MIC preamplifier input
MIC signals are input through a capacitor and a resistor to this pin, and then amplified to be output
from Pin18. The statuses of Pins7 and 8 enable or disable the signals. The input impedance with
ALC OFF is 10k .
Preamplifier internal regulated supply voltage output
This pin should be grounded through a 220 F capacitor. The output voltage is typically 4.2V. The
output can be used as an ECM bias current source.
Preamplifier ground
This is the ground pin for the preamplifier circuits.
Description
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
Description
Equalizer amplifier output
Equalizer amplifier inverting input
To the REC/PLAY head
REC gain control
VOX amplifier input
Preamplifier output
Preamplifier inverting input
ALC detection control
Line preamplifier input
MIC preamplifier input
Preamplifier internal regulated supply voltage output
Preamplifier ground
Description