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PDF AN12974A Data sheet ( Hoja de datos )
| Número de pieza | AN12974A | |
| Descripción | Stereo power amplifier with built-in AGC circuitry and SPATIALIZER | |
| Fabricantes | Panasonic Semiconductor | |
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DATA SHEET
Part No.
Package Code No.
AN12974A
XLGA032-L-0505
SEMICONDUCTOR COMPANY
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Publication date: May 2004
SDC00058AEB
1
1 page  
AN12974A
Pin Descriptions
Pin
No.
Description
1 Surround filter terminal r-channel 1
2 Surround filter terminal r-channel 2
3 Surround output r-channel
4 Gain adjustment reflection amplifier output r-channel
5 Gain adjustment reflection amplifier output r-channel
6 AGC on/off switch
7 Pre-charge timing condenser terminal
8 VCC-SP r-channel
9 Speaker power save on/off switch
10 Speaker output r-channel (−)
11 GND (Spesker r-channel)
12 Speaker output r-channel (+)
13 Speaker output l-channel (−)
14 GND (Speaker l-channel)
15 Speaker output l-channel (+)
16 All standby on/off switch
Pin
No.
Description
17 VCC-SP (L-channel)
18 1/2 VCC-SP (VREF-SP)
19 AGC detecting terminal
20 Gain adjustment reflection amplifier output l-channel
21 Gain adjustment reflection amplifier output l-channel
22 Surround output l-channel
23 Surround filter terminal l-channel 2
24 Surround filter terminal l-channel 1
25 Surround effect adjustment 1
26 Surround effect adjustment 2
27 1/2 VCC (VREF)
28 Audio input terminal l-channel
29 VCC
30 Audio input terminal r-channel
31 GND
32 Surround on/off switch
The mode table
Pin No.
Function
32 Surround on/off switch
6 AGC on/off switch
9
Speaker power save on/off
switch
16 All standby on/off switch
Mode
Low High
Off On
Off On
Explanation of operation
On/off of spatializer function is controlled.
On/off of AGC function for speaker is controlled.
On Off On/off of power amplifier for speaker is controlled.
On Off On/off of all functions of IC is controlled.
SDC00058AEB
5
5 Page 
AN12974A
Technical Data
Note)The characteristics listed below are reference values based on the IC design and are not guaranteed.
Pin Waveform
No. and voltage
Inner circuit
Pin Waveform
No. and voltage
Inner circuit
Surround filter
terminal
1, R-channel 1
2 R-channel 2
DC: 1.5 V
AGC on/off
switch
Logic
6 High = AGC on
Low = AGC off
Open
DC:
Input impedance = 240 kΩ
Surround output
R-channel
3
DC: 1.5 V
AC: −34 dBV
Gain adjustment
reflection amplifier
4 output r-channel
DC: 1.5 V
AC:
Pre-charge timing
condenser
7 terminal
Open
DC: 2.9 V
VCC
29 DC: 3.0 V
8, VCC–SR (R)
17 VCC–SP (L)
DC: 3.0 V
Input impedance = 736 kΩ
Gain adjustment
reflection amplifier
output r-channel
5
DC: 1.5 V
AC: −34 dBV
Output impedance = 10 Ω or less
Speaker mute
switch
Logic
9 High = mute off
Low = mute on
Open
DC: 2.0 V
Output impedance = 93 kΩ
SDC00058AEB
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AN12974A.PDF ] | |
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