Technical Note

3/31

BD5445EFV

www.rohm.com

2010.05 - Rev.B

© 2010 ROHM Co., Ltd. All rights reserved.

PDX=24V, MUTEX=24V, MS=0V, Single-ended outputs）

Item

Symbol

Limit

Unit

Conditions

Min

Typ

Max

Whole circuit

Circuit current 1

-

25

50

mA

Pin 1, 15, 16, 27, 28

No load, No signal

Circuit current 2

(Power down mode)

-

2

4

mA

Pin 1, 15, 16, 27, 28

PDX=0V,MUTEX=0V, No load, No

signal

Control circuit

High level input voltage for control

2.5

-

24

V

Pin 2, 3, 10, 11, 13

Low level input voltage for control

0

-

0.8

V

Pin 2, 3, 10, 11, 13

High level input voltage for clock

2.5

-

5

V

Pin 12

Low level input voltage for clock

0

-

0.8

V

Pin 12

Audio circuit

Momentary maximum output power

-

10

-

W

※7

-

17

-

※7

Voltage gain

12

14

16

dB

Gain1=0V, Gain0=0V

※7

18

20

22

Gain1=0V, Gain0=24V

※7

24

26

28

Gain1=24V, Gain0=0V

※7

30

32

34

Gain1=24V, Gain0=24V

※7

Total harmonic distortion

THD

-

0.05

-

%

BW=20～20kHz

※7

Crosstalk

CT

60

75

-

dB

Rg=0

Ω, BW=IHF-A

※7

Output noise voltage

-

80

160

μVrms

Rg=0

Ω, BW=IHF-A

※7

Residual noise voltage

(Power down mode)

-

1

10

μVrms

PDX=0V, MUTEX=0V

Rg=0

Ω, BW=IHF-A

※7

Mute attenuation

80

94

-

dB

MUTEX=0V, BW= IHF-A

※7

Power supply rejection ratio

PSRR

-

60

-

dB

Vripple=1Vrms, BW= IHF-A

Rg=0

Ω, fripple=100Hz

※7

Internal oscillation frequency

480

600

720

kHz

Pin 12, MS=0V

※7

External clock frequency

480

-

720

kHz

Pin 12, MS=24V

※7

※7 These items show the typical performance of device and depend on board layout, parts, power supply.

The standard value is in mounting device and parts on surface of ROHM’s board directly.