Audio Amplifier Electrical Characteristics AV

2) (Continued)

The following specifications apply for the circuit shown in Figure 1 with all programmable gain set at 0dB, unless otherwise

specified. Limits apply for T

Symbol

Parameter

Conditions

LM4934

Units

(Limits)

Typical

(Note 6)

Limits

(Notes

7, 8)

PSRR

Power Supply Rejection Ratio

f = 217Hz; V

C

Table 3

Xtalk

Crosstalk

Loudspeaker; P

f = 1kHz

–86

dB

Headphone; P

f = 1kHz; OCL

–56

dB

Headphone; P

f = 1kHz, SE

–80

dB

T

WU

Wake-Up Time

C

45

ms

C

130

ms

The following specifications apply for 3V

≤ AV

DD

≤ 5V and 2.7V ≤ DV

DD

≤ 4.0V, unless otherwise specified. Limits apply for T

A

= 25˚C.

Symbol

Parameter

Conditions

LM4934

Units

(Limits)

Typical

(Note 6)

Limits

(Notes

7, 8)

PGR

Stereo or Mono Analog Inputs

PreAmp Gain Setting Range

minimum gain setting

–6

–6.5

dB (min)

–5.5

dB (max)

maximum gain setting

15

15.5

dB (max)

14.5

dB (min)

VCR

Output Volume Control for Stereo

Speakers, Headphone Output, or

Mono Output Range

minimum gain setting, Vol = 00001

–56

–56.5

dB (min)

–55.5

dB (max)

maximum gain setting

5

4.5

dB (min)

5.5

dB (max)

∆A

CH-CH

Stereo Channel to Channel Gain

Mismatch

0.3

dB

A

MUTE

Mute Attenuation

V

with load, Vol = 00000

Headphone

dB

Line Out

dB

R

INPUT

M

23

18

k

Ω (min)

28

k

Ω (max)

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