Technical Note
11/30
BD5446EFV
www.rohm.com
2010.05 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
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GAIN1 pin, GAIN2 pin, GAIN3 pin function
GAIN3
(18pin)
GAIN2
(17pin)
GAIN1
(16pin)
Speaker output gain
L L L
20dB
L L H
22dB
L H L
24dB
L H H
26dB
H L L
28dB
H L H
30dB
H H L
32dB
H H H
34dB
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SEL_DAC pin function
SEL_DAC
(21pin)
OUT_DAC1 (23pin)
OUT_DAC2 (24pin)
L
The Lch signal of SDATA1 is output
The Rch signal of SDATA1 is output
H
The Lch signal of SDATA2 is output
The Rch signal of SDATA2 is output
●
RESETX pin function
RESETX
(10pin)
State of Digital block
L Reset
ON
H Reset
OFF
●
RESETX pin
RESETX
(12pin)
State of Digital block
L Reset
ON
H Reset
OFF
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PDX pin,MUTEX pin function
PDX
(12pin)
MUTEX
(11pin)
Power Down
DAC output
(24,25pin)
PWM output
(33,34,38,39,43,44,48pin)
L
L or H
ON
HiZ_Low
HiZ_Low
H L
OFF Normal
operation
H H
Normal
operation
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IIS_LJ pin function
IIS_LJ
(15pin)
Digital data format
L I2S
H Left
Justified
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