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부품번호 | BD34705KS2 기능 |
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기능 | 7.1ch Sound Processor | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 30 페이지수
Datasheet
Sound Processors for AV Receiver Systems
7.1ch Sound Processor
with Built-in Micro-step Volume
BD34705KS2
General description
The BD34705KS2 is an 8ch independent volume system.
The system is designed to allow 7.1ch surround system
application. It is improvement that sound quality more
than the conventional products. Micro-step volume can
reduce the switching pop noise during volume attenuation,
so a high quality audio system could be achieved.
8ch triple input selectors for zone 3 and multi channel
input enable the connection with a number of sources.
Features
8ch input selectors
(It is extendable to up to 14 by other functions and
exclusion)
Micro-step volume can reduce the switching pop
noise during volume attenuation.
Zone 3 is supported.
Built-in 2ch Volume for ZONE output
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.)
1.2μVrms(Typ.)
1.0μVrms(Typ.)
-105dB(Typ.)
-105dB(Typ.)
Package
SQFP-T64
W(Typ.) x D(Typ.) x H(Max.)
14.00mm x 14.00mm x 1.50mm
Applications
Suitable for the AV receiver, home theater system,
etc.
SQFP-T64
Typical Application Circuit
Figure 1. Application Circuit
○Product structure:Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
○This product is not designed protection against radioactive rays
1/36
TSZ02201-0C2C0E100250-1-2
2015.3.31. Rev.001
BD34705KS2
Block Diagram
Datasheet
46 45
44
43
42 41 40
39 38 37 36 35 34 33
Main
Sub1
Sub2
47
48
49
50
51
52
53
54
55
ADC
56
57
Mode
selector
Mode
selector
Mode
selector
Mode
selector
7.1chOUT +32dB~
-95dB,-INF/0.5dB step
FR FL
Volume Volume
SW
Volume
C
Volume
SR SL
Volume Volume
SBR
Volume
SBL
Volume
32
31
30
29
Rec
Rec Selector
Sub
28
27
26
25
58
59
60
61
62
63
64 Logic
1
234
5 67 8
9 10 11 12 13 14 15
Sub Selector
SUBOUT
+6dB~-16dB/1dB step
-16dB~-56dB/2dB step
MUTE
HP-OUT
FRONT/MUTE
16 17
18 19
24
23
22
21
20
Figure 3. Block Diagram
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/36
TSZ02201-0C2C0E100250-1-2
2015.3.31. Rev.001
4페이지 BD34705KS2
Typical Performance Curve(s) (Reference data)
50
40
30
20
10
0
-10 Operational
-20 range
-30
-40
-50
0123 45678
VCC(+)/VEE(-)[V]
Figure 4. Circuit Currents vs. Circuit Voltage
Datasheet
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
10
100 1000 10000 100000
Frequency[Hz]
Figure 5. Volume Gain vs. Input Frequency
(32dB to 0 dB setting)
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
10
100 1000 10000 100000
Frequency[Hz]
Figure 6. Volume Gain vs. Input Frequency
(0dB to -32 dB setting)
-30
-32
-34
-36
-38
-40
-42
-44
-46
-48
-50
-52
-54
-56
-58
-60
-62
-64
-66
10
100 1000 10000 100000
Frequency[Hz]
Figure 7. Volume Gain vs. Input Frequency
(-32dB to -64 dB setting)
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
7/36
TSZ02201-0C2C0E100250-1-2
2015.3.31. Rev.001
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부품번호 | 상세설명 및 기능 | 제조사 |
BD34705KS2 | 7.1ch Sound Processor | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |