ETC BH3863F/S

BH3863F/BH3863S
Audio ICS
Audio sound control IC
BH3863F/BH3863S
The BH3863F/BH3863S is a sound control IC for mini-component stereo. Resistive ladder system is used to make DC
offset smaller when switching. This IC is a 2-wire serial controller.
Small package of SOP24 and SDIP24 is adopted.
!Applications
Mini-component stereo, Micro-component stereo, TV and CD radio cassette tape player
!Features
1) Volume, tone and bass boost can be controlled through serial control from a microcomputer.
2) Volume at both left and right sides can be controlled individually.
3) Resistive ladder type volume controller is used and BiCMOS process enables the low distortion rate and low noise.
4) It has a dynamic bus for the low frequency reinforcement.
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
VCC
V
mW
Pd
−0.3 to +10.0
550 ∗
Operating temperature range
Topr
−40 to +85
C
Storage temperature range
Tstg
−55 to +125
C
Applied voltage
Power dissipation
+
+
∗ For Ta=25 C or more, it is reduced at 5.5mW/ C. 50mm 50mm 1.6mm.
!Recommendable operating voltage range (Ta=25°C)
Parameter
Power supply voltage
Symbol
Min.
Typ.
Max.
Unit
VCC
7.0
9.0
9.5
V
1/2
BH3863F/BH3863S
Audio ICS
!Electrical characteristic
Unless specified particularly, Ta=25°C, VCC=9V, f=1kHz, Rg=600Ω, RL=10kΩ,
BW=20 to 20kHz, Vin=1.0Vrms, Volume=0dB, Tone=0dB, Dynamic Bass=0dB, and gain select=0dB.)
Symbol
Min.
Typ.
Max.
Unit
Current consumption
upon no signal
Parameter
IQ
−
9
22
mA
Maximum input voltage
VIM
2.2
2.5
−
Vrms
ATT=0dB Output THD=1%
Maximum output voltage
VoM
2.2
2.5
−
Vrms
OutputTHD=1% BW=400~30KHz
Voltage gain
GV
−2
0
+2
dB
Full harmonic
distortion rate
THD
−
0.05
0.1
%
Output noise voltage
VNO
−
6
12
µVrms Rg=0Ω
∗
Residual noise voltage
µVrms Volume= −
∗
−
6
12
CT
−
94
60
dB
Channel balance
CB
−1.5
0
1.5
dB
RIN1
15.0
18.8
22.6
KΩ
Volume step resolution
ATSTEP
−
1
−
dB
Volume maximum
attenuation
ATMIN
−80
−94
−
dB
Bass control range
VB
+
− 8.5
+
− 10.5
+
− 12.5
dB
Treble control range
VT
+
−8
+
− 10
+
− 12
dB
VDB
18
20
22
dB
Input impedance
Dynamic bass control
range
VIN=0Vrms
Vo=1Vrms
8
VMNO
Cross-talk
Conditiond
Measure based on CH1.
f=60Hz VIN=10mVrms
VP-9690A (detection of mean value, indication of root-mean-value) IHF-A filter of MATSUSHITA
is used for measurement of "∗".
Operation specification : The phase between I/O signal terminals is the same.
Radiation resistance is not included in the design.
!Application Circuit
0.033µ
0.022µ 0.47µ
0.1µ
130k
BIN1
SIMIN1
2
1
24
BASS1
SIMOUT1
3
23
BOUT1
22
BASS
BOOST
FILTER
+6dB fixed
VOL
4
5.6k
TRE1
0dB
6dB
variable
IN1
0.1µ
BASS
TRE
10µ
OUT1
21
DATA
10
20
SI
10k
VCC
5
200k
FILTER
+
6
DIGITAL CONTROL
−
200k
22µ
19
1/2VCC
18
SCK 10k
LATCH
DBC
0.1µ
7
17
8
IN2
OUT2
VOL
BASS
16
TRE
+6dB fixed
BASS
BOOST
SIMOUT2
0dB
6dB
variable
SIMIN2
9
10µ
BASS2
10 11 12
10µ
FILTER
TRE2
13
BIN2
14
15
BOUT2
130k
0.033µ
0.022µ 0.47µ
0.1µ
0.1µ
5.6k
2/2