BD37544FS datasheet(4/41 Pages) ROHM

Part #	BD37544FS

Description	Sound Processor with Built-in 3-band Equalizer

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Manufacturer	ROHM [Rohm]

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BD37544FS

4/37

TSZ02201-0C2C0E100590-1-2

www.rohm.com

TSZ22111・15・001

16.Dec.2015 Rev.001

Absolute Maximum Ratings (Ta=25°C)

(Note 1) When mounted on the standard board (70 x 70 x 1.6 mm3), derate by 7.6mW/°C for Ta above 25°C.

Thermal resistance

θja = 131.6(°C/W)

Material : A FR4 grass epoxy board(3% or less of copper foil area)

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.

Recommended Operating Conditions

Electrical Characteristics

(Unless specified, Ta=25°C, VCC=8.5V, f=1kHz, VIN

=1Vrms, Rg=600Ω, RL=10kΩ, A1 input, Input gain 0dB, Mute OFF,

Volume 0dB, Tone control 0dB, Loudness 0dB, LPF OFF, HPF OFF, Mixing OFF, Fader 0dB)

Parameter

Symbol

Limit

Unit

Conditions

Min

Typ

Max

Circuit Current (No Signal)

IQ

－

38

48

mA

No signal

Voltage Gain

GV

-1.5

0

+1.5

dB

GV=20log(VOUT/VIN)

Channel Balance

CB

-1.5

0

+1.5

dB

CB = GV1-GV2

Total Harmonic Distortion 1

(FRONT,REAR)

THD+N1

－

0.001

0.05

％

VOUT=1Vrms

BW=400Hz-30KHz

Total Harmonic Distortion 2

(SUBWOOFER)

THD+N2

－

0.002

0.05

％

VOUT=1Vrms

BW=400Hz-30KHz

Output Noise Voltage 1

(FRONT,REAR) *

VNO1

－

3.8

15

μVrms

Rg

= 0Ω

BW = IHF-A

Output Noise Voltage 2

(SUBWOOFER) *

VNO2

－

4.8

15

μVrms

Rg

= 0Ω

BW = IHF-A

Residual Output Noise Voltage*

VNOR

－

1.8

10

μVrms

Fader = -

∞dB

Rg

= 0Ω

BW = IHF-A

Cross-talk Between Channels *

CTC

－

-100

-90

dB

Rg

= 0Ω

CTC=20log(VOUT/VIN)

BW = IHF-A

Ripple Rejection

RR

－

-70

-40

dB

f=1kHz

VRR=100mVrms

RR=20log(VCC IN/VOUT)

Input Impedance(A, B,C)

RIN_S

70

100

130

kΩ

Input Impedance(D, E)

RIN_D

175

250

325

kΩ

Maximum Input Voltage

VIM

2.1

2.3

－

Vrms

VIM at THD+N(VOUT)=1

％

BW=400Hz-30KHz

Cross-talk Between Selectors *

CTS

－

-100

-90

dB

Rg = 0Ω

CTS=20log(VOUT/VIN)

BW = IHF-A

Common

Mode

Rejection

Ratio*

CMRR

50

65

－

dB

XP1 and XN input

XP2 and XN input

CMRR=20log(VIN/VOUT)

BW = IHF-A,[*

X…D,E]

Parameter

Symbol

Rating

Unit

Power Supply Voltage

VCC

10.0

V

Input Voltage

VIN

VCC+0.3

to GND-0.3

V

Power Dissipation

Pd

0.95 (Note 1)

W

Storage Temperature

Tstg

-55

to +150

°C

Parameter

Symbol

Min

Typ

Max

Unit

Power Supply Voltage

VCC

7.0

－

9.5

V

Temperature

Topr

-40

－

+85

°C

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