ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

BASS CONTROL

Max Bass Boost

15

18

20

dB

Max Bass Cut

-8.5

-10

-11.5

dB

Step Resolution

1

2

3

dB

Internal Feedback Resistance

45

65

85

K

Ω

TREBLE CONTROL

Control Range

±13

±14

±15

dB

Step Resolution

1

2

3

dB

SPEAKER ATTENUATORS

Control Range

35

37.5

40

dB

Step Resolution

0.5

1.25

2.0

dB

Output Mute Attenuation

Data Word = XXX11111

80

100

dB

Attenuation Set Error

1.25

dB

DC Steps

Adjacent Attenuation Steps

0

3

mV

AUDIO OUTPUT

Clipping Level

d = 0.3%

2.1

2.6

Vrms

Output Load Resistance

2

K

Ω

Output Impedance

30

100

Ω

DC Voltage Level

3.5

3.8

4.1

V

GENERAL

Supply Voltage

6

9

10.2

V

Supply Current

10

15

mA

PSRR

Power Supply Rejection Ratio

f = 1KHz

60

80

dB

B = 20 to 20kHz ”A” weighted

65

dB

Output Noise

Output Muted (B = 20 to 20kHz flat)

2.5

µV

All Gains 0dB (B = 20 to 20kHz flat)

5

15

µV

Total Tracking Error

0

1

dB

0

2

dB

S/N

Signal to Noise Ratio

106

dB

Channel Separation

80

100

dB

d

Distortion

0.01

0.08

%

BUS INPUTS

Input Low Voltage

1V

Input High Voltage

3

V

Input Current

VIN = 0.4V

-5

5

µA

Output Voltage SDA

Acknowledge

0.4

0.8

V

Note 2: Internal pullup resistor to Vs/2; ”LOW” = softmute active

r

TDA7348

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