BD3452KS_10_技术文档

Sound Processors for Home Theater System

7.1ch

Sound Processor

BD3452KS

No.10081EAT01

●Description

BD3452KS is a sound processor where the functions including Input Selector, 8ch Volume and Gain Amp required for

applications such as AV receivers, home theater systems and mini-component systems are integrated into a single chip.

Adopting the BiCMOS process achieves low distortion, low noise and a wide dynamic range.

●Features

1) Dynamic range: 132dB (VOL=MUTE, IHF-A)

2) Independent 8 channels for Master Volume (0 to -99 dB, MUTE 1dB/Step)

3) Supporting 2nd room entertainment

4) Low current consumption design achieved by adopting the BiCMOS process

5) Built-in Output Gain Amp useful for adjusting output signal voltages (0 to 15dB, 1dB/Step)

6) BD3841FS (9-input selector), BD3843FS (6-input selector) and BUS are common to be controlled simultaneously.

7) Built-in 2ch output port

8) 2-wire serial control (For both 3.3V and 5V)

●Applications

AV receivers, home theater systems and mini-component systems

●Absolute maximum ratings (Ta=25℃)

Parameter

Symbol

Ratings

Unit

V

VCC

VEE

7.5 ^*1

-7.5

Power Supply Voltage

Input Signal Voltage

VIN

Pd

VCC+0.3 to VEE-0.3

1300 ^*2

V

Power Dissipation

mW

℃

Operating Temperature Range

Storage Temperature Range

Topr

Tastg

-20 to 75

-55 to 125

℃

*1

Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may cause an

excessive current to give a permanent damage to the IC.

When starting up power supplies, VEE and VCC should be powered on simultaneously or VEE first; then followed by VCC.

*2

Over Ta25℃, reduce at the rate of 13mW/℃. When installed on the standard board (size: 70701.6mm).

●Operating conditions

It must function normally at Ta25℃.

Ratings

Typ.

Parameter

Symbol

Unit

V

Min.

Max.

VCC

VEE

6.5

-7.3

7

-7

7.3

-6.5

Operating Supply Voltage

www.rohm.com

2010.06 - Rev.A

1/9

Technical Note

BD3452KS

●Electrical characteristics

Ta=25℃, VCC=7V, VEE=-7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, Input Gain=0dB,

Master volume=0dB, Output gain=0dB, unless otherwise noted.

Limits

Parameter

Symbol

IQ

Unit

mA

Conditions

Min.

-

Typ.

20

Max.

40

-

VCC

VEE

Circuit Current

No signal

-40

-20

Output Voltage Gain

Gv

-2

0

2

dB

Measure : Pin87,88

Total Harmonic

Distortion Ratio

Measure : Pin87,88

BW=400 to 30kHz

THD

Vomax

Vno

-

3.6

-

0.0006 0.03

%

Measure : Pin87,88

THD=1

Maximum Output Voltage

Output Noise Voltage

Residual Noise Voltage

4.2

1.4

1

-

12

8

Vrms

µVrms

Measure : Pin87,88, Rg=0Ω,

BW=IHF-A

Measure : Pin87,88, Rg=0Ω,

BW=IHF-A, Volume=MUTE

Vnor

-

Measure : Pin88(OUTFL),87 (OUTFR)

Rg=0Ω, BW=IHF-A

Reference : Pin87(OUTFR),

88(OUTFL)=1Vrms

Cross-talk

between Channels

CTC

-

-95

-80

dB

Cross-talk

between Selectors

Measure : Pin87,88

Rg=0Ω, BW=IHF-A

CTS

Rin

-

32

-2

-

-95

47

0

-80

62

2

dB

kΩ

dB

%

Input Impedance

V Output Voltage Gain

GVV

Measure : Pin 81,82,83,84,85,86,87,88

V Total Harmonic

Distortion Ratio

Measure : Pin 81,82,83,84,85,86,87,88

BW=400 to 30kHz

THDV

VnorV

VOLE1

VOLmin

GIG

0.0006 0.03

Measure : Pin 81,82,83,84,85,86,87,88

BW=IHF-A, Rg=0Ω,Volume=MUTE

V Residual Noise Voltage

Volume Setting Error

-

1

0

8

0.5

-105

14

µVrms

dB

Ω

Measure : Pin 81,82,83,84,85,86,87,88

Volume=0dB, Vin=3Vrms

-0.5

-

Measure : Pin 81,82,83,84,85,86,87,88

Vin=3Vrms, BW=IHF-A

Maximum Attenuation

Input Gain Control Range

-115

12

15

0

Measure : Pin 81,82,83,84,85,86,87,88

Input Gain=12dB, Vin=0.3Vrms

10

13

-0.5

-

Measure : Pin 81,82,83,84,85,86,87,88

Output Gain=15dB, Vin=0.3Vrms

Output Gain Control Range GOG

17

Measure : Pin 81,82,83,84,85,86,87,88

Output Gain=0dB, Vin=0.3Vrms

Output Gain Setting Error

R Output Impedance

R Voltage Gain

GOE

RoutR

GVR

THDR

PH

0.5

100

2

20

0

Measure : Pin 44,45,46,47

(*)RL=10kΩ

-2

-

dB

%

R Total Harmonic

Distortion Ratio

Measure : Pin 44,45,46,47

BW=400 to 30kHz, (*)RL=10kΩ

0.005

4.9

-

0.09

5.4

1.0

Measure : Pin 62,63

RL=10kΩ

Port H Output

4.0

-

V

Port Output Current

PI

mA

Measure : Pin 62,63

(*)

*

If two RECOUTs are ON, total load resistances of these two (RL) should be 10 kΩ.

This product is not of "anti radiation design".

www.rohm.com

2010.06 - Rev.A

2/9

Technical Note

BD3452KS

●Timing chart

1) Signal Timing Conditions

・Data is read on the rising edge of the clock.

・Latch is read on the falling edge of the clock.

・Latch signal must terminate with the LOW state.

*To avoid malfunctions, clock and data signals must terminate with the LOW state.

90%

10%

CL

(CLOCK)

twc

10%

thd

ts

th

tsd

thd

tsl

thl

DA

DATA

90%

twh

twl

twd

LATCH

DATA

10%

LATCH

10%

Terminate with

LOW

Fig.1

Limits

Typ.

Parameter

Symbol

Unit

Min.

1.0

Max.

Minimum Clock Width

Minimum Data Width

Minimum Latch Width

LOW Hold Width

twc

twd

twl

twh

tsd

thd

tsl

-

µs

1.0

0.5

Data Set-up Time (DATACLK)

Data Hold Time (CLKDATA)

Latch Set-up Time (CLKLATCH)

Latch Hold Time (DATALATCH)

Latch Low Set-up Time

thl

ts

Latch Low Hold Time

th

2) Voltage Conditions for Control Signals

Limits

Parameter

Min.

Unit

Conditions

Typ.

Max.

5.5

“H” Input Voltage

“L” Input Voltage

2.2

0

－

V

Vcc = 6.5～7.3V

VEE=-6.5～-7.3V

－

1.0

www.rohm.com

2010.06 - Rev.A

3/9

Technical Note

BD3452KS

3) Basic Configuration of Control Data Formats

Input direction

MSB

LSB

D16 D15 D14 D13 D12 D11 D10 D9

Data

D8

D7

D6

D5

D4

D3

D2

D1

D0

Data

Select Address

・Control Data Formats

Select Address

Input direction

D16 D15 D14 D13 D12 D11 D10 D9

D4

*

D3

*

D2

0

D1

0

D0

0

Data

(1)

Input selector 1

Input selector 2

Input ATT

D8 D7

Input gain

D6 D5

D16 D15 D14 D13 D12 D11 D10 D9

D4

*

D3

0

D2

0

D1

0

D0

1

Data

(2)

FLR Input

Selector

SBLR Input

Selector

Multi Input REC REC Port Port

Selector

A

B

A

B

D16 D15 D14 D13 D12 D11 D10 D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

Data

(3)

Output gain 7ch

Output gain SWch

*

1

0

D2

0

D1

1

D0

0

D16 D15 D14 D13 D12 D11 D10 D9

D8

D7

D6

D5

D4

D3

Data

(4)

Master volume

FLch

Master volume

D8 D7

Master volume

D8 D7

Master volume

D8 D7

Master volume

FRch

D4

D16 D15 D14 D13 D12 D11 D10 D9

D6

D5

D3

D2

0

D1

1

D0

1

Data

(5)

Master volume

Cch

SWch

D4

D16 D15 D14 D13 D12 D11 D10 D9

D2

1

D1

1

D0

0

Data

(6)

Master volume

SLch

SRch

D4

D16 D15 D14 D13 D12 D11 D10 D9

D2

1

D1

1

D0

1

Data

(7)

Master volume

SBLch

SBRch

By changing the setting of Select Address, seven different control formats are selectable.

For Select Address, the values except those shown above must not be specified.

Each time of power-on, all of the address data must be initialized.

* indicates 0 or 1.

(Example)

Input direction

MSB

LSB MSB

Data(4)

LSB MSB

Data(6)

LSB MSB

LSB

L

Data(1)

L

Data(2)

L

Data(3)

L

Data(5)

L

Data(7)

“L” means latch.

After power-on, for the second and subsequent times, only the desired data can be selected for setting.

(Example) When changing Output Gain SWch,Input direction

MSB

LSB

Data(3)

L

“L” means latch.

www.rohm.com

2010.06 - Rev.A

4/9

Technical Note

BD3452KS

●Application circuit

10µ

+

10µ

+

10µ

+

10µ

+

100

99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81

FL

FR

1

2

80

10µ

79

47K

C

SL

3

78

4

77

10µ

SR

5

76

75

SBL

SBR

SW

6

7

74

10µ

8

73

72

9

FL

FR

10

11

12

13

71

47K

10µ

70

69

C

SL

VEE

VCC

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

VEE

VCC

47µ

1

4

SR

SBL

SBR

SW

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

PORTB

PORTA

10K

BOUT1

BOUT2

logic

DA

CL

L

R

L

47K

DGN

D

SW

SBR

SBL

SR

SL

R

L

47K

R

L

R

L

REC

C

47K

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

8ch Input (DSP)

9ch Input Selector

UNIT

RESISTOR : Ω

CAPACITOR : F

Fig.2

www.rohm.com

2010.06 - Rev.A

5/9

Technical Note

BD3452KS

●Reference data

10

8

25

20

15

10

5

10

1

VCC

6

4

2

0

0.1

-2

-4

-5

-10

-15

-20

-6

-8

0.01

0.001

VEE

-10

10

100

1000

10000 100000

0

2

4

6

8

10

0.001

0.01

0.1

1

10

FREQUENCY (Hz)

POWER SUPPLY (V)

INPUT VOLTAGE (Vrms)

Fig.3 Circuit Current - Power Supply

Fig.4 Voltage Gain - Frequency

Fig.5 Output Voltage - Input Voltage

14

10

1

2

0

12dB

12

10

8

-2

-4

0.1

6dB

6

-6

4

0.01

0.001

0.0001

-8

2

-10

-12

-14

0dB

0

-2

10

100

1000

10000

100000

0.001

0.01

0.1

1

10

100

1000

10000 100000

FREQUENCY (Hz)

INPUT VOLTAGE (Vrms)

FREQUENCY (Hz)

Fig.7 Input Attenuation - Frequency

Fig.6 THD+N - Input Voltage

Fig.8 Input Gain - Frequency

0

-20

16

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

15dB

10dB

14

12

10

8

-40

-60

5dB

0dB

6

-80

4

-100

-120

2

0

-2

10

100

1000

10000 100000

-100

-80

-60

-40

-20

0

10

100

1000

10000 100000

FREQUENCY (Hz)

VOLUME DATA (dB)

FREQUENCY (Hz)

Fig.10 Output Gain - Frequency

Fig.9 Volume Attenuation -

Volume Settin

Fig.11 Cross-talk between Channels -

Frequency

5.0

0

6

5

4

3

2

1

0

4.5

4.0

-20

3.5

3.0

2.5

2.0

1.5

-40

-60

-80

1.0

0.5

0.0

-100

-120

10

100

1000

10000 100000

2

4

6

8

10

1

10

100

FREQUENCY (Hz)

POWER SUPPLY (V)

IMPEDANCE (Ω)

Fig.12 Cross-talk between Selectors -

Frequency

Fig.13 Output Noise Voltage -

Power Supply Voltage

Fig.14 Port H Voltage –

Load Resistance

www.rohm.com

2010.06 - Rev.A

6/9

Technical Note

BD3452KS

●Notes for use

(1) Numbers and data in entries are representative design values and are not guaranteed values of the items.

(2) Although we are confident in recommending the sample application circuits, carefully check their characteristics further

when using them. When modifying externally attached component constants before use, determine them so that they have

sufficient margins by taking into account variations in externally attached components and the Rohm LSI, not only for static

characteristics but also including transient characteristics.

(3) Absolute maximum ratings

If applied voltage, operating temperature range, or other absolute maximum ratings are exceeded, the LSI may be

damaged. Do not apply voltages or temperatures that exceed the absolute maximum ratings. If you think of a case in

which absolute maximum ratings are exceeded, enforce fuses or other physical safety measures and investigate how not

to apply the conditions under which absolute maximum ratings are exceeded to the LSI.

(4) VEE potential

Make the VEE pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the voltage

of each pin does not become a lower voltage than the VEE pin, including transient phenomena.

(5) Thermal design

Perform thermal design in which there are adequate margins by taking into account the allowable power dissipation in

actual states of use.

(6) Shorts between pins and misinstallation

When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the LSI. If it is

misinstalled and the power is turned on, the LSI may be damaged. It also may be damaged if it is shorted by a foreign

substance coming between pins of the LSI or between a pin and a power supply or a pin and a GND.

(7) Operation in strong magnetic fields

Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction.

(8) About Operating Voltage Range and Operating Temperature Range

The circuit functional operations are guaranteed within the Operating Voltage Range and Operating Temperature Range.

The standard values of electrical characteristics, however, are guaranteed under the specific conditions. Accordingly,

careful consideration of the IC characteristic variations is required to design a set of circuit.

(9) About power ON/OFF

(a) At power ON/OFF, a shock sound will be generated and, therefore, use MUTE on the set.

(b) When turning on power supplies, VEE and VCC should be powered on simultaneously or VEE first;

then followed by VCC. If the VCC side is started up first, an excessive current may pass VCC through VEE.

(10) About serial control

For the CL and DA terminals, the patterned and other wirings should be routed not to cause interference with the

analog-signal-related lines.

(11) About function switching

When switching Input Selector or Input Gain, use MUTE on Master Volume.

www.rohm.com

2010.06 - Rev.A

7/9

Technical Note

BD3452KS

●Thermal derating characteristic

1400

1300mW

1200

1000

800

600

400

200

0

25

50

75

100

125

Ta(

)

℃

Fig.15

BD3452KS

ROHM standard board packaging time value

Board size: 70 x 70 x 1.6mm Raw material : FR4 glass epoxy board (copper area 3% or below)

www.rohm.com

2010.06 - Rev.A

8/9

Technical Note

BD3452KS

●Ordering part number

B

D

3

4

5

2

K

S

-

Part No.

Package

KS: SQFP100

Packaging and forming specification

None :Tray

SQFP100

24.0 0.3

20.0 0.2

Container

Quantity

Tray (with dry pack)

500pcs

51

80

Direction of feed Direction of product is fixed in a tray

81

50

31

1pin

100

30

1

0.15 0.1

0.15

0.65

0.3 0.1

(Unit : mm)

Order quantity needs to be multiple of the minimum quantity.

∗

www.rohm.com

2010.06 - Rev.A

9/9

Notice

N o t e s

No copying or reproduction of this document, in part or in whole, is permitted without the

consent of ROHM Co.,Ltd.

The content speciﬁed herein is subject to change for improvement without notice.

The content speciﬁed herein is for the purpose of introducing ROHM's products (hereinafter

"Products"). If you wish to use any such Product, please be sure to refer to the speciﬁcations,

which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein

illustrate the standard usage and operations of the Products. The peripheral conditions must

be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information speciﬁed in this document.

However, should you incur any damage arising from any inaccuracy or misprint of such

information, ROHM shall bear no responsibility for such damage.

The technical information speciﬁed herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or

implicitly, any license to use or exercise intellectual property or other rights held by ROHM and

other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the

use of such technical information.

The Products speciﬁed in this document are intended to be used with general-use electronic

equipment or devices (such as audio visual equipment, ofﬁce-automation equipment, commu-

nication devices, electronic appliances and amusement devices).

The Products speciﬁed in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a

Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard

against the possibility of physical injury, ﬁre or any other damage caused in the event of the

failure of any Product, such as derating, redundancy, ﬁre control and fail-safe designs. ROHM

shall bear no responsibility whatsoever for your use of any Product outside of the prescribed

scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or

system which requires an extremely high level of reliability the failure or malfunction of which

may result in a direct threat to human life or create a risk of human injury (such as a medical

instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-

controller or other safety device). ROHM shall bear no responsibility in any way for use of any

of the Products for the above special purposes. If a Product is intended to be used for any

such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology speciﬁed herein that may

be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to

obtain a license or permit under the Law.

Thank you for your accessing to ROHM product informations.

More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

www.rohm.com

R1010

A


型号：	BD3452KS_10
厂家：	ROHM
描述：	7.1ch Sound Processor 7.1声道音效处理器
文件：	总10页 (文件大小：372K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

BD3452KS_10 [ROHM]

相关型号：

BD345S

BD345T

BD345YS

BD345YT

BD34602FS-E2

BD34602FS-M

BD34602FS-ME2

BD3460FS

BD3460FS-E2

BD3460FS_15

BD3460FV-E2

BD3461FS