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Processor IC. BH3865S Datasheet

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Processor IC. BH3865S Datasheet
















BH3865S IC. Datasheet pdf. Equivalent













Part

BH3865S

Description

Dual Line Serial Control Sound Processor IC



Feature


www.DataSheet4U.com BH3865S Video ICs Dual-line serial control sound processo r IC BH3865S The BH3865S is a signal pr ocessing IC developed for the control o f volume and tone quality in TV equipme nt. Since dual-line serial control (I2C BUS) is used, the volume level and ton e quality in TV equipment can be change d using signals such as those from a mi crocomputer or sim.
Manufacture

Rohm

Datasheet
Download BH3865S Datasheet


Rohm BH3865S

BH3865S; ilar device. Note : I2C BUS is a registe red trademark of Philips. !Application s DVDs, personal computers, high-vision TVs, karaoke sets, digital broadcasts, CATVs, and other TV equipment !Featur es 1) 2-channel volume and sound qualit y control. 2) Absorption of volume devi ation between input sources and improve d S / N ratio, for better sound quality , using an AGC cir.


Rohm BH3865S

cuit. 3) Control through I2C BUS serial control. 4) Internal pseudo-stereo circ uit provides phase-shift matrix surroun d effect. !Absolute maximum ratings (T a = 25°C) Parameter Power supply volta ge Power dissipation Operating temperat ure Storage temperature Symbol VCC Pd T opr Tstg Limits 10.0 1250∗ −25~+75 −55~+125 Unit V mW °C °C ∗Reduc ed by 12.5mW for each increas.


Rohm BH3865S

e in Ta of 1˚C over 25˚C. !Recommende d operating conditions (Ta = 25°C) Par ameter Power supply voltage Symbol VCC Min. 7.0 Typ. Max. 9.5 Unit V DataShee t 4 U .com www.DataSheet4U.com BH3865 S Video ICs !Block diagram BGAIN MSIN A DD STT STT LOUT LOUT LOUT VCC BIN LB LB LIN LT DAC 32 31 30 29 28 27 26 10k 25 MIX OFF BASS MIX ON 24 23 2 2 21 20 19 18 17.





Part

BH3865S

Description

Dual Line Serial Control Sound Processor IC



Feature


www.DataSheet4U.com BH3865S Video ICs Dual-line serial control sound processo r IC BH3865S The BH3865S is a signal pr ocessing IC developed for the control o f volume and tone quality in TV equipme nt. Since dual-line serial control (I2C BUS) is used, the volume level and ton e quality in TV equipment can be change d using signals such as those from a mi crocomputer or sim.
Manufacture

Rohm

Datasheet
Download BH3865S Datasheet




 BH3865S
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Video ICs
Dual-line serial control sound
processor IC
BH3865S
BH3865S
The BH3865S is a signal processing IC developed for the control of volume and tone quality in TV equipment.
Since dual-line serial control (I2C BUS) is used, the volume level and tone quality in TV equipment can be changed using
signals such as those from a microcomputer or similar device.
Note : I2C BUS is a registered trademark of Philips.
!Applications
DVDs, personal computers, high-vision TVs, karaoke sets, digital broadcasts, CATVs, and other TV equipment
!Features
1) 2-channel volume and sound quality control.
2) Absorption of volume deviation between input sources and improved S / N ratio, for better sound quality, using an
AGC circuit.
3) Control through I2C BUS serial control.
4) Internal pseudo-stereo circuit provides phase-shift matrix surround effect.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power dissipation
VCC
Pd
10.0
1250
Operating temperature
Topr
25~+75
Storage temperature
Tstg
55~+125
Reduced by 12.5mW for each increase in Ta of 1˚C over 25˚C.
Unit
V
mW
°C
°C
!Recommended operating conditions (Ta = 25°C)
Parameter
Power supply voltage
Symbol
VCC
Min.
7.0
Typ.
-
Max.
9.5
Unit
V
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 BH3865S
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Video ICs
!Block diagram
BH3865S
32
50k
50k
31 30 29 28 27 26 25 24 23 22
VCC
10k
MIX OFF
50k
BASS
MIX ON
SMON
OFF
50k
ON
10k
OFF AGC
VCA
ON
10k
L+S
10k PHASE Surr effect LFP
A OFF
OFF
G L+R L-R
C
ON 10k
ON
SHIFT
AMP
SSTE
SON
VCA
R-S
OFF
LOOP
ON VCC
50k
1
2
VCC
TONE
(BASS/TREBLE)
TONE
(BASS/TREBLE)
21 20
10k
10k
50k
19 18 17
I2C BUS
INTERFACE
SCL SDA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
!Pin descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin name
RIN
GND
AGCADJ
LS1
LS2
SOUT
PS
Vref
STB
RT
RB
ROUT
SRV
SLV
SCL
SDA
Function
Rch input
Ground
AGC 0dB adjustment
AGC level sensor 1
AGC level sensor 2
Sch output pin and LPF
Phase shift pin (internal resistance:18k)
1 / 2 VCC
Bass shock sound integration
Rch Treble fc setting
Rch Bass fc setting
Rch output
Vol Rch shock sound integration
Vol Lch shock sound integration
I2C communications clock
I2C communications data
Pin No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pin name
DAC
N.C.
N.C.
LOUT
N.C.
N.C.
LB
LT
STT
BGAIN
MSIN
BIN
ADD
N.C.
VCC
LIN
Function
Expansion DAC (L / H)
No connection
No connection
Lch output
No connection
No connection
Lch Bass fc setting
Lch Treble fc setting
Treble shock sound integration
Bass Mix Gain adjustment
Mono Sur input
Bass detection LPF operating amplifier input
L + R added output after AGC
No connection
Power supply, 9V
Lch input
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 BH3865S
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Video ICs
!Input / output circuits
Pin No. Pin name Pin voltage ZIN I / O
VCC
Equivalent circuit
BH3865S
Function
1 RIN
4.5V 50k
I
32 LIN
50k
GND
1
2
VCC
12 ROUT
4.5V
-
O
20 LOUT
VCC
200
10k
200
Input pins.
VCC
Output pins.
GND
3 AGCADJ
-
-I
GND
VCC
4 LS1
- --
GND
AGC 0dB adjustment pin.
This pin is connected to the
base of PNP.
The current output from this
pin is 1µA (Typ.) Max.
200
430
2k
Time constant pin on the
side that suppresses the
AGC signal level.
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