Ω, all controls flat (G = 0dB), unless otherwise specified)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

SUPPLY

Supply Voltage

6

9

10.2

V

Supply Current

7

mA

SVR

Ripple Rejection

60

90

dB

INPUT STAGE

Input Resistance

100

K

Ω

Clipping Level

THD = 0.3%

2

2.5

Vrms

Input Separation

The selected input is grounded

through a 2.2

µ capacitor

80

100

dB

Minimum Input Gain

-1

0

1

dB

Maximum Input Gain

30

dB

Step Resolution

2

dB

VOLUME CONTROL

Control Range

45

47

49

dB

Max. Attenuation

45

47

49

dB

Step Resolution

0.5

1

1.5

dB

Attenuation Set Error

-1.0

0

1.0

dB

-1.5

0

1.5

dB

Tracking Error

0

1

dB

0

2

dB

DC Step

adjacent attenuation steps

0

0.5

3mV

mV

Mute Attenuation

80

100

dB

SPEAKER ATTENUATORS

Control Range

76

dB

Step Resolution

0.5

1

1.5

dB

Attenuation Set Error

-1.5

0

1.5

dB

-2

0

2

dB

DC Step

adjacent attenuation steps

0

3

mV

Mute Attenuation

80

100

dB

AUDIO OUTPUTS

Clipping Level

d = 0.3%

2.1

2.6

Output Load Resistance

2

K

Ω

Output Impedance

10

40

70

Ω

DC Voltage Level

3.8

V

GENERAL

Output Noise

All gains = 0dB;

BW = 20Hz to 20KHz flat

515

µV

Total Tracking Error

0

1

dB

0

2

dB

S/N

Signal to Noise Ratio

106

dB

Channel Separation Left/Right

80

100

dB

d

Distortion

0.01

0.08

%

BUS

IN-

PUT

TDA7449L

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