bh3866as ROHM Co. Ltd., bh3866as Datasheet - Page 20

• Manufacturer Part Number: bh3866as
• Description: Dual-line Serial Control Sound Processor Ic
• Manufacturer: ROHM Co. Ltd.

•
•
(1) Operating power supply voltage range
Within the operating power supply voltage range, oper-
ation of the basic circuit functions is guaranteed for the
ambient operating temperature, but when using the
product, be sure that settings for constants and ele-
ments, voltage settings, and temperature settings are
carefully confirmed.
(2) Operating temperature
Within the recommended operating voltage range,
operation of the circuit functions is guaranteed for the
operating temperature range. Be aware that power dis-
sipation conditions are related to the temperature. Also,
except for conditions determined by electrical charac-
teristics within this range, the rated values for electrical
characteristics cannot be guaranteed, but the essential
functions are maintained.
20
Video ICs
Application example
Operation notes
50k
50k
R
L
IN
IN
32
1
10
10
+
–
–
+
100
GND
V
CC
V
31
A
G
C
2
CC
AGCADJ
V
VCA
VCA
CC
50k
18k
V
15k
C
CC
OFF
IN
30
ON
3
10
+
–
AGC
L + R
ADD
100k
LS1
10
10
29
4
L - R
–
0.039
L + R
100k
C
47k
IN
100k
SSTE
OFF
LS2
4.7
ON
10k
0.022
B
10k
100k
IN
28
10k
5
10k
OFF
CSEL
10k
0.012
MS
S
220k 4.7k
ON
+
–
10
SMON
PHASE
SHIFT
OUT
10k
IN
27
6
0.0056
50k
Surr effect
10
BGAIN
0.022
+
–
+
–
PS
26
50k
OFF
ON
7
0.1
10
2k
10k
50k
50k
–
+
AMP
LFP
LOOP
Vref
STT
SON
OFF
ON
V
25
MIX OFF
MIX ON
8
CC
4.7
100
+
–
R - S
L + S
BASS
STB
Fig.3
LT
24
1
2 V
9
470P
4.7
CC
(3) Application example
We guarantee the application circuit design, but recom-
mend that you thoroughly check its characteristics in
actual use. If you change any of the external compo-
nent values, check both the static and transient charac-
teristics of the circuit, and allow sufficient margin in
your selections to take into account variations in the
components and ICs.
Note that Rohm has not fully investigated patent rights
regarding this product.
RT
LB
23
10
0.033
470P
(bass / treble)
(bass / treble)
(bass / treble)
CT
Tone
Tone
Tone
RB
22
11
470P
0.033
R
CB
OUT
21
12
0.033
10
+
10k
10k
+
–
–
SRV
L
OUT
20
13
10
4.7
+
–
10k
C
SLV
OUT
19
14
10
4.7
SCV
SCL
I
2
C BUS interface
SCL
18
15
4.7
Units Resistance:
DAC
SDA
SDA
Capacitance: F
17
16
BH3866AS
I
serial
control
2
C BUS