BD28412MUV datasheet(9/44 Pages) ROHM

Part #	BD28412MUV

Description	9W9W Analog Input Class D Speaker Amplifier

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Manufacturer	ROHM [Rohm]

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Datasheet

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TSZ02201-0C1C0E900620-1-2

21.Sep.2016 Rev.003

www.rohm.com

TSZ22111 • 15 • 001

BD28412MUV

Electrical Characteristics

(Unless otherwise specified, Ta=25°C, VCC=11V, fPWM=600kHz, fIN=1kHz, RL=8Ω, PDX=3.3V, MUTEX=3.3V, PLIMT=0V,

Gain=26dB, Output LC filter: L=15µH, C=1µF

when VCC>11V, snubber circuit is added: C=680pF, R=5.6Ω)

Parameter

Symbol

Min

Typ

Max

Unit

Conditions

Quiescent Standby Current

ICC1

-

0.1

25

µA

No load or filter,

PDX=L, MUTEX=L

Quiescent Mute Current

ICC2

-

10

20

mA

No load or filter,

PDX=H, MUTEX=L

Quiescent Operating Current

ICC3

-

16

32

mA

No load or filter, No signal,

PDX=H, MUTEX=H

Regulator Output Voltage

VREGG

4.45

5.55

6.05

V

PDX=H, MUTEX=H

Input Impedance 1

RIN1

50

-

kΩ

MUTEX, PDX,

FSEL0, FSEL1, FSEL2,

SYNC(Slave mode only),

Input Impedance 2

RIN2

140

200

260

kΩ

PLIMIT

Output Power

(Note 10)

PO1

-

9

-

W

VCC=12V, THD+N=10%

Gain 1

(Note 10)

GV1

19

20

21

dB

Po=1W,

GAIN_MS_SEL= 0V

Gain 2

(Note 10)

GV2

25

26

27

dB

PO=1W ,

GAIN_MS_SEL= 2/9 × VREGG

Gain 3

(Note 10)

GV3

31

32

33

dB

PO=1W,

GAIN_MS_SEL= 3/9 × VREGG

Gain 4

(Note 10)

GV4

35

36

37

dB

PO=1W,

GAIN_MS_SEL= 4/9 × VREGG

Total Harmonic Distortion

(Note 10)

THD

-

0.03

-

%

Po=1W,

BW=AES17

Crosstalk

(Note 10)

CT

60

100

-

dB

Po=1W, 1kHz BPF

PSRR

(Note 10)

PSRR

-

55

-

dB

VRIPPLE=0.2 VP-P, f=1kHz

Output Noise Voltage

(Note 10)

VNO

-

-80

-70

dBV

Po=0W, BW=A-Weight

PWM (Pulse Width Modulation)

Frequency

fPWM1

1128

1200

1272

kHz

FSEL2=H,

FSEL1=H,

FSEL0=H

fPWM2

940

1000

1060

kHz

FSEL2=H,

FSEL1=H,

FSEL0=L

fPWM3

564

600

636

kHz

FSEL2=H,

FSEL1=L,

FSEL0=H

fPWM4

470

500

530

kHz

FSEL2=H,

FSEL1=L,

FSEL0=L

fPWM5

376

400

424

kHz

FSEL2=L,

FSEL1=H,

FSEL0=H

(Note 10) The value is specified as typical application. Actual value depends on PCB layout and external components.

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