TDA7404 データシートの表示（PDF） - STMicroelectronics

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TDA7404

Car radio signal processor

STMicroelectronics 

Electrical specifications

TDA7404

Table 5.

Symbol

Electrical characteristics (continued)

(VS =9 V; Tamb=25 °C; RL=10 k; all gains = 0 dB; f = 1 kHz; unless otherwise specified)

Parameter

Test conditions

Min. Typ. Max. Unit

Fader outputs

VCLIP

RL

CL

ROUT

VDC

Clipping level

Output load resistance

Output load capacitance

Output impedance

DC Voltage Level

Subwoofer attenuator

d = 0.3%

2.20 2.60

2

VRMS

k

10

nF

30

100

W

4.3

4.5

4.7

V

CRANGE

ASTEP

AMUTE

EE

VDC

Control range

Step resolution

Output mute attenuation

Attenuation set error

DC steps

General

Adjacent attenuation steps

-53

50

-47

dB

0.5

1

1.5

dB

80

90

dB

2

dB

0.10

5

mV

eNO Output noise

BW = 20 Hz - 20 kHz

all gains = 0 dB single ended

inputs

10

15

V

S/N Signal to noise ratio

d Distortion

all gains = 0 dB

flat; VO = 2VRMS

bass, treble at +12 dB;

a-weighted; VO = 2.6 VRMS

VIN = 1 VRMS; all stages 0 dB

internal pass only

VOUT = 1 VRMS;

Bass and treble = 12 dB

106

dB

100

dB

0.005 0.1

%

0.05 0.1

%

SC Channel separation left/right

ET Total tracking error

AV = 0 to -20 dB

AV = -20 to -60 dB

80

100

dB

-1

0

1

dB

-2

0

2

dB

1. The SM-Pin is active low (Mute = 0).

2. Center frequency 2.4 kHz makes 1kHz bottom frequency at low and high frequency boost condition.

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