an12960a Panasonic Corporation of North America, an12960a Datasheet - Page 5

• Manufacturer Part Number: an12960a
• Description: Monaural Class-d Amplifier Ic With Built-in Agc
• Manufacturer: Panasonic Corporation of North America

AN12960A
Notes)
VCC_SP =
3.0 V to 4.5 V
Application Circuit Example (Block Diagram) (continued)
Parallel Control Mode
This application circuit is shown as an example but does not guarantee the design for mass production set.
This block diagram is for explaining functions. The part of the block diagram may be omitted, or it may be simplified.
The threshold voltages of Pin C3, B2, B3, A4, D4, D3 depend on VCC_D.
The pins C3, B2, B3, A4, D4, D3 are floating condition at open, so please apply either High level or Low level voltage to them.
Speaker 8 Ω
2.2 μF
0.1 μF
OUT_NEG
GND_SP
OFC
D1
C1
B1
C2
VREF
1 μF
OUT_POS
+12 dB
+12 dB
A1
SP Save
Auto
D2
(49-step)
GND
EVR
6bits
C4
–2 dB/1 dB/4 dB
0.1 μF
DET
A2
INPUT
Ver. AEB
Standby Control
Low : Standby Mode
High : Normal Mode
AGC
MUTE
D3
INPUT
I2C_SEL
VCC_D
I2C-BUS
C3
Control
SLV_SEL /
GSEL2
VCC_D
D4
A3
A4
B3
B2
AGCL
SDA /
AUTOSAVE
GSEL1
SCL /
AUTOSAVEL
1 μF
VCC_D
VCC_D
VCC_D
VCC_D
AGC-ON Level
Selection
Low : 5 dBV
High : 8 dBV
Auto SP Save
ON/OFF Selection
Low : ON
High : OFF
Auto SP Save
Detection Level
Low : –60 dBV
High : –48 dBV
Gain Selection
[GSEL2, GSEL1]
= [0, 0] : Gain = +16 dB
VCC_D =
1.7 V to 2.5 V
[0, 1] : Gain = +19 dB
[1, 0] : Gain = +22 dB
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