TDA7342 datasheet(5/14 Pages) STMICROELECTRONICS

номер детали	TDA7342

подробное описание детали	DIGITALLY CONTROLLED AUDIO PROCESSOR

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ELECTRICAL CHARACTERISTICS (continued.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

ZERO CROSSING MUTE

VTH

Zero Crossing Threshold

(note 1)

WIN = 11

20

mV

WIN = 10

40

mV

WIN = 01

80

mV

WIN = 00

160

mV

AMUTE

Mute Attenuation

80

100

dB

VDC

DC Step

0dB to Mute

0

3

mV

SOFT MUTE

AMUTE

Mute Attenuation

45

60

dB

TDON

ON Delay Time

CCSM = 22nF; 0 to -20dB; I = IMAX

0.7

1

1.7

ms

CCSM = 22nF; 0 to -20dB; I = IMIN

20

35

55

ms

TDOFF

OFF Current

VCSM = 0V; I = IMAX

25

50

75

µA

VCSM = 0V; I = IMIN

1

µA

VTHSM

Soft Mute Threshold

1.5

2.5

3.5

V

RINT

Pullup Resistor (pin 21)

(note 2)

35

50

65

K

Ω

VSMH

(pin 21) Level High

3.5

V

VSML

(pin 21) Level Low

Soft Mute Active

1

V

BASS CONTROL

BBOOST

Max Bass Boost

15

18

20

dB

BCUT

Max Bass Cut

-8.5

-10

-11.5

dB

Astep

Step Resolution

1

2

3

dB

Rg

Internal Feedback Resistance

45

65

85

K

Ω

TREBLE CONTROL

CRANGE

Control Range

±13

±14

±15

dB

Astep

Step Resolution

1

2

3

dB

SPEAKER ATTENUATORS

CRANGE

Control Range

35

37.5

40

dB

Astep

Step Resolution

0.5

1.25

2.00

dB

AMUTE

Output Mute Attenuation

Data Word = XXX11111

80

100

dB

EA

Attenuation Set Error

1.25

dB

VDC

DC Steps

Adjacent Attenuation Steps

0

3

mV

AUDIO OUTPUT

Vclip

Clipping Level

d = 0.3%

2.1

2.6

Vrms

RL

Output Load Resistance

2

K

Ω

RO

Output Impedance

30

100

Ω

VDC

DC Voltage Level

3.5

3.8

4.1

V

TDA7342

5/14

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