TDA7437N_06 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7437N_06

Digitally controlled audio processor

STMicroelectronics 

Electrical characteristics

TDA7437N

Table 4.

Symbol

Electrical characteristics (continued)

Parameter

Test condition

Min. Typ. Max. Unit

VDC DC steps

Loudness control (Pin 4, 12)

Adjacent gain steps

-5

+5 mV

Adjacent attenuation steps -3

+3 mV

From 0dB to AMAX

0.5 5 mV

RI

AMAX

Astep

Internal resistor

Maximum attenuation

Step resolution

Zero crossing mute

Loud = On

35 50 65 KΩ

19 20 21 dB

0.5 1 1.5 dB

VTH Zero crossing threshold (1)

AMUTE Mute attenuation

VDC DC step

Soft mute

WIN = 11

WIN = 10

WIN = 01

WIN = 00

0dB to Mute

35

mV

70

mV

140

mV

280

mV

80 100

dB

0.1 3 mV

AMUTE Mute attenuation

TDON ON delay time

TDOFF OFF current

RINT

VSMH

VSML

Pullup resistor (pin 28)

(pin 28) Level high

(pin 28) Level low

Bass control

50 65

dB

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

= IMAX

0.8

1.5

2.0

ms

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

= IMIN

25

45

60

ms

VCSM = 0V; I = IMAX

20 40 60 mA

VCSM = 0V; I = IMIN

(2)

2

μA

100

KΩ

3.5

V

Soft mute active

1

V

Crange

Astep

Rg

Control range

Step resolution

Internal feedback resistance

Middle control

±11.5 ±14 ±16 dB

1

2

3

dB

31 44 57 KΩ

Crange

Astep

Rg

Control range

Step resolution

Internal feedback resistance

±11.5 ±14 ±16 dB

1

2

3

dB

17.5 25 32.5 KΩ

10/34

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