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PDF BD34701KS2 Data sheet ( Hoja de datos )
| Número de pieza | BD34701KS2 | |
| Descripción | 7.1ch Sound Processor | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
Sound Processors for Home Theater Systems
7.1ch Sound Processor
with Built-in Micro-step Volume
BD34701KS2
General description
The BD34701KS2 is an 8ch independent volume system.
The system is designed in such a way, that it can be
used as a 7.1ch surround system. Micro-step volume
can reduce the switching shock noise when volume
changes, so it can achieve a high-quality set.
8ch dual input selector for zone 2 and multi channel
input enable the connection of a number of sources.
Features
8ch input selectors
Micro-step volume can reduce the switching shock
noise when volume changes.
Zone 2 can support.
2-wire serial bus control, corresponding to 3.3/5V.
Key Specifications
Total harmonic distortion:
Maximum output voltage:
Output noise voltage:
Residual output noise voltage:
Cross-talk between channels:
Cross-talk between selectors:
0.0004%(Typ.)
4.2Vrms(Typ.)
1.5uVrms(Typ.)
1.0uVrms(Typ.)
-105dB(Typ.)
-105dB(Typ.)
Package
SQFP-T52
W(Typ.) x D(Typ.) x H(Max.)
12.00mm x 12.00mm x 1.50mm
Applications
Most suitable for the AV receiver, home theater
system
Typical Application Circuit
GND INR1 INL1 INR2 INL2 INR3 INL3 INR4 INL4 INR5 INL5 INR6 INL6
39 38 37 36 35 34 33 32 31 30 29 28 27
GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM
STEREO MULTI
INPUT INPUT
INL12
SBLIN
40
INR12 SBRIN 41
INL11
SLIN
42
INR11
SRIN
43
INL10
CIN 44
INR10
SWIN 45
INL9
FLIN
46
INR9
FRIN
47
GND
48
ADCR
49
ADCL
50
GND
51
CHP
52
Main
Sub
Mode
selector
Mode
selector
Mode
selector
Mode
selector
ADC
FR FL
Volume Volume
SW C
Volume Volume
SR SL
Volume Volume
SBR
Volume
SBL
Volume
SQFP-T52
26 GND
25 INR7
24 INL7
23 INR8
22 INL8
21 GND
20 GND
Rec
19 RECR
18 RECL
17 GND
16 GND
15 SUBR
14 SUBL
Logic
1 2 3 4 5 6 7 8 9 10 11 12 13
DGND
47 µ 0.1µ
VCC
DA CL
47µ 0.1 µOUTFR OUTFL OUTSW OUTC OUTSR OUTSL OUTSBR OUTSBL
VEE
Figure 1. Application Circuit
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
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TSZ02201-0C2C0E100080-1-2
017.Sep.2013 Rev.002
1 page  
BD34701KS2
Datasheet
Absolute Maximum Ratings
Item
Positive power supply
Negative power supply
Power dissipation
Symbol
Vcc
Vee
Pd
Rating
+7.75 (Note1)
-7.75 (Note1)
1.30 (Note2)
Unit
V
V
W
Input voltage
Operating temperature
Vin
Topr
Vee-0.2 to Vcc+0.2
-40 to +85 (Note3)
V
°C
Storage temperature
Tastg
-55 to +125
°C
(Note1)
The maximum voltage that can be applied based on GND.
(Note2)
This value decreases 13.0mW/°C for Ta=25°C or more. A standard board, 70×70×1.6 mm, shall be mounted.
(Note3)
If it within operation voltage range, circuit functions operation is guaranteed within operation temp.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between
pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as
adding a fuse, in case the IC is operated over the absolute maximum ratings.
Operating Condition
Item
Symbol
Rating
Unit
Positive power supply
Vcc +6.5 to +7.5 (Note4,5)
V
Negative power supply
Vee
-6.5 to -7.5 (Note4,5)
V
(Note4)
(Note5)
Applying a voltage based on GND.
Within operation temp range, basic circuit function Operation is guaranteed within operation voltage range.
But please confirm set up of constant and element, voltage set up and temp set up on use.
Please watch out except condition stipulated by electrical characteristics within the range, It cannot guarantee
standard value of electrical characteristics. But it retains original function.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
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TSZ02201-0C2C0E100080-1-2
17.Sep.2013 Rev.002
5 Page 
BD34701KS2
Datasheet
Select Address No.0 Setting Table
Function & Setting D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MUTE
000000
IN1 0 0 0 0 0 1
IN2 0 0 0 0 1 0
IN3 0 0 0 0 1 1
IN4 0 0 0 1 0 0
IN5 0 0 0 1 0 1
IN6 0 0 0 1 1 0
IN7
IN8
IN9
IN10
IN11
000111
REC
0 0 1 0 0 0 ON/OFF
001001
001010
001011
0
SUB
ON/OFF
0
1
0
0
Chip
Select
0
0
IN12
001100
001101
・・・・・・
Prohibition
・
・
・
・
・
・
・
・
・
・
・
・
111111
OFF
0
ON
OFF
ON
Input Selector (MAIN)
1
REC
ON/OFF
0
1
: Initial condition
Select Address No.1 Setting Table
Function & Setting D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MUTE
000000
IN1 0 0 0 0 0 1
IN2 0 0 0 0 1 0
IN3 0 0 0 0 1 1
IN4 0 0 0 1 0 0
IN5 0 0 0 1 0 1
IN6 0 0 0 1 1 0
IN7
IN8
00
00
0
1
1
0
1
0
1
00
0
00 0 0
0
Chip
Select
0
1
IN9 0 0 1 0 0 1
IN10
001010
IN11
001011
IN12
001100
001101
・・・・・・
Prohibition ・ ・ ・ ・ ・ ・
・・・・・・
111111
: Initial condition
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/29
TSZ02201-0C2C0E100080-1-2
17.Sep.2013 Rev.002
11 Page | ||
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| PDF Descargar | [ Datasheet BD34701KS2.PDF ] | |
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