Electrical characteristics

TDA7348

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Electrical characteristics

Table 1.

Electrical characteristics

0dB); f = 1KHz. Refer to the test circuit, unless otherwise specified.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Input selector

Input resistance

70

100

130

K

Ω

Clipping level

d

≤ 0.3%

2.1

2.6

Input separation

80

100

dB

Output load resistance

2

K

Ω

Minimum input gain

-0.75

0

0.75

dB

Maximum input gain

10.25 11.25 12.25

dB

Step resolution

2.75

3.75

4.75

dB

Input noise

20Hz to 20 KHz unweighted

2.3

μV

DC steps

Adiacent gain steps

1.5

10

mV

3

mV

Volume control (1 + 2)

Input resistance

35

50

K

Ω

Maximum gain

18.75

20

21.25

dB

Maximum attenuation

78.45

dB

Step resolution coarse

attenuation

0.51.252.0

dB

Step resolution fine

attenuation

0.11

0.31

0.51

dB

Attenuation set error

G = 20 to -20dB

-1.25

0

1.25

dB

G = -20 to -58dB

-3

2

dB

Tracking error

2

dB

DC steps

Adiacent attenuation steps

-3

0

3

mV

0.5

5

mV

Zero crossing mute

Zero crossing threshold

WIN = 11

20

mV

WIN = 10

40

mV

WIN = 01

80

mV

WIN = 00

160

mV

Mute attenuation

80

100

dB

DC step

0dB to Mute

0

3

mV