TDA7344S 查看數據表（PDF） - STMicroelectronics

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TDA7344S

DIGITAL CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

STMicroelectronics 

TDA7344

ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ,

RG = 600Ω, all controls flat (G = 0),Effect Ctrl = -6dB, MODE = OFF; f = 1KHz

unless otherwise specified)

Symbol

SUPPLY

Parameter

Test Condition

Min. Typ. Max. Unit

VS

IS

SVR

Supply Voltage

Supply Current

Ripple Rejection

INPUT STAGE

LCH / RCH out, Mode = OFF

7

9

10.5

V

20

25

35

mA

60

80

dB

RII

Input Resistance

VCL

Clipping Level

CRANGE Control Range

AVMIN

Min. Attenuation

AVMAX

ASTEP

VDC

Max. Attenuation

Step Resolution

DC Steps

VOLUME CONTROL

THD = 0.3%; Lin or Rin

THD = 0.3%; Rin + Lin (2)

adjacent att. step

35

2

-1

18.68

0.11

-3

50

2.5

3.0

19.68

0

19.68

0.31

0

65

1

20.68

0.51

3

KΩ

Vrms

Vrms

dB

dB

dB

dB

mV

CRANGE

AVMIN

AVMAX

ASTEP

EA

Control Range

Min. Attenuation

Max. Attenuation

Step Resolution

Attenuation Set Error

ET

Tracking Error

VDC

DC Steps

BASS CONTROL (1)

Av = 0 to -40dB

Av = 0 to -20dB

Av = -20 to -60dB

adjacent attenuation steps

From 0dB to Av max

70

75

dB

-1

0

1

dB

70

75

dB

0.5 1.25 1.75 dB

-1.5

0

-3

1.5

dB

2

dB

2

dB

-3

0

3

mV

-5

0.5

5

mV

Gb

Control Range

BSTEP

Step Resolution

RB

Internal Feedback Resistance

TREBLE CONTROL (1)

Max. Boost/cut

+11.5 +14 +16

dB

1

2

3

dB

32

44

56

KΩ

Gt

Control Range

TSTEP

Step Resolution

EFFECT CONTROL

Max. Boost/cut

+13 +14 +15

dB

0.5

2

1.5

dB

CRANGE

SSTEP

Control Range

Step Resolution

- 21

1

-6

dB

dB

4/20

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