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

3mV

DIFFERENTIAL INPUT ( IN 3)

Input Resistance

Input selector BIT D6 = 0 (0dB)

10

15

20

K

Ω

Input selector BIT D6 = 1(-6dB)

14

20

30

K

Ω

CMRR

Common Mode Rejection Ratio

f =1KHz

48

75

dB

f = 10KHz

45

70

dB

d

Distortion

0.01

0.08

%

Input Noise

20Hz to 20KHz; Flat; D6 = 0

5

µV

Differential Gain

D6 = 0

-1

0

1

dB

D6 = 1

-7

-6

-5

dB

VOLUME CONTROL

Input Resistance

35

50

K

Ω

Maximum Gain

18.75

20

21.25

dB

Maximum Attenuation

57.7

59.7

62.7

dB

Step Resolution Coarse Atten.

0.5

1.25

2.0

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

2dB

DC Steps

Adiacent Attenuation Steps

-3

0

3

mV

0.5

5

mV

LOUDNESS CONTROL

Internal Resistor

Loud = On

35

50

65

K

Ω

Maximum Attenuation

17.5

18.75

20.0

dB

Step Resolution

0.5

1.25

2.0

dB

TDA7342

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