TDA7719 datasheet(12/45 Pages) STMICROELECTRONICS

12 / 45 page

Electrical specifications and characteristics

TDA7719

12/45

VDC

DC steps

Adjacent attenuation steps

0.1

Subwoofer lowpass

fLP

(2)

Lowpass corner frequency

fLP1

fLP2

108

120

132

fLP3

144

160

176

DC offset detection circuit

Vth

Zero comp window size

±20

±50

±80

±30

±75

±110

±60

±100

±140

tsp

Max rejected spike length

511

µs

100

µs

ICHDCErr

DCErr charge current

µA

IDISDCErr

DCErr discharge current

3.5

6.5

VOutH

DCErr high volotage

3.3

3.6

VOutH

DCErr low voltage

100

300

Level meter

Vout

Output voltage range

3.4

VLEVEL

Output level

Vin = 1Vrms

1.2

1.6

2.0

Vin = AC Grounded

-0.5

0.5

TDEL

Analog output delay time

µs

General

eNO

Output noise

BW=20Hz to 20kHz A-

Weighted, all gain = 0dB

µV

BW=20Hz - 20kHz A-

Weighted, Output muted

625

µV

S/N

Signal to noise ratio

all gain = 0dB, A-weighted;

Vo = 2VRMS

104

Distortion

VIN =1VRMS; all stages 0dB

0.01

0.2

Channel separation left/right

When DC offset detector is not used, the impedance of mono single-ended input is 50k

Ω instead of 100kΩ

Minimun, typical and maximum are calculate in according to simulation result. Functionality is guaranteed by measuring a

directly correlated parameter.

Table 5.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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