TDA7439(2008) 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7439
(Rev.:2008)

Three-band digitally-controlled audio processor

STMicroelectronics 

Electrical specifications

TDA7439

Table 5.

Symbol

Electrical characteristics (continued)

Parameter

Test condition

Min Typ Max Unit

Speaker attenuators

Crange Control range

Sstep Step resolution

EA Attenuation set error

VDC DC step

Amute Mute attenuation

Audio outputs

VCLIP Clipping level

RL Output load resistance

RO Output impedance

VOUTDC DC voltage level

General

ENO Output noise

Et Total tracking error

S/N Signal to noise ratio

SC Channel separation, left/right

d Distortion

Bus input

VIL Input low voltage

VIH Input high voltage

IIN Input current

VO

Output voltage SDA

acknowledge

AV = 0 to -20 dB

AV = -20 to -56 dB

Adjacent attenuation steps

d = 0.3%

All gains = 0 dB;

BW = 20 Hz to 20 kHz flat

AV = 0 to -24 dB

AV = -24 to -47 dB

All gains 0 dB,

VO = 1 V RMS

AV = 0, VI = 1 V RMS

VIN = 0.4 V

IO = 1.6 mA

70 76 82 dB

0.5 1 1.5 dB

-1.5 0 1.5 dB

-2

0

2 dB

0

3 mV

80 100

dB

2.1 2.6

Vrms

2

kΩ

10 40 70 Ω

3.5 3.8 4.1 V

5 15 µV

0

1 dB

0

2 dB

95 106

dB

80 100

dB

0.01 0.08 %

1

V

3

V

-5

0

5 µA

0.4 0.8 V

1. For bass, mid-range and treble response: the center frequency and the response quality can be set by the

external circuitry.

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