lc75412e Sanyo Semiconductor Corporation, lc75412e Datasheet - Page 13

• Manufacturer Part Number: lc75412e
• Description: Electronic Volume Controller For Car Audio Systems
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Pin Name
RFOUT
RROUT
LFOUT
LROUT
RAVSS
LAVSS
MUTE
DVSS
VDD
Vref
TIM
CL
CE
DI
Pin No.
31
30
18
19
57
56
27
29
22
23
20
26
25
24
• Fader output pins. Attenuation is possible separately for the front
• Connect a capacitor of a few tens of µF between Vref and AVSS
• Power supply pin
• Logic system ground pin
• Analog system ground pins
• External muting control pin
• Setting this pin to V
• Timer pin when there is no signal in the zero-cross circuit.
• Input pin for serial data and clock used for control
• Chip enable pin. Data is written to the internal latch and the analog
end and rear end. The attenuation amount is the same for L and
R.
(VSS) as a VDD/2 voltage generator, current ripple
countermeasure.
–∞ level.
switches are operated when the level changes from High to Low.
Forcibly set data when there is no zero-cross signal, from the time
the data is set until the timer ends.
Data transfer is enabled when the level is High.
SS
level sets forcibly fader volume block to
Function
LC75412E, 75412W
LVref
RVref
Equivalent circuit
VDD
VDD
VDD
VDD
VDD
No. 7053-13/21