Technical Note

2/15

BD5426MUV

www.rohm.com

2010.05 - Rev.B

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

●

Operating conditions

The following values assume Ta =25℃. Check for latest values in delivery specifications.

Parameter

Symbol

Ratings

Unit

Conditions

Supply voltage

VCC

+10 ~ +16.5

V

Pin 2, 14, 15, 22, 23, 38, 39, 46, 47

Load resistance

6 ~ 16

Ω

(Note 5)

(Note 5) Pd should not be exceeded.

●

Electrical characteristics

Except otherwise specified Ta = 25℃, VCC = 12V, fIN = 1kHz, Rg = 0Ω, RL = 8Ω, MUTEX="H", MS="L"

For latest values, refer to delivery specifications.

Parameter

Symbol

Limits

Unit

Conditions

Whole circuit

Circuit current 1 (Sampling mode)

25

mA

With no signal

Circuit current 2 (Muting mode)

10

mA

MUTEX = “L”

Control circuit

“H” level input voltage

2.3 ~ 12

V

SDX, MUTEX, MS

“L” level input voltage

0 ~ 0.8

V

SDX, MUTEX, MS

Audio circuit

Voltage gain

28

dB

Maximum output power 1 (Note 6)

PO1

9

W

THD+N = 10%

Maximum output power 2 (Note 6)

PO2

10

W

Vcc=13V, THD+N = 10%

Total harmonic distortion (Note 6)

THD

0.1

%

Crosstalk

CT

85

dB

Output noise voltage (Sampling mode)

VNO

80

µVrms Rg = 0Ω, BW = IHF-A

Residual noise voltage (Muting mode)

VNOM

1

µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”

Internal sampling clock frequency

FOSC

250

kHz

MS = “L” (In master operation)

(Note 6) The rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components,

and power supplies. The reference values are those applicable to the device and components directly installed on a board specified by us.