10 (18)

DA6116.001

27 February, 2009

ANALOG CHARACTERISTICS

N Gain Control

(AVCC=+5.0 V, AGND=0 V, TA=+25

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Gain range

G

-111.5

+15.5

dB

Step size

D

0.5

dB

Absolute gain

GABS

Absolute gain value with setting G=255

+15

+15.5

+16

dB

Gain step error

DE

Relative to GABS, note 6

-0.5

0

0.5

dB

Gain match error

1

ME

Between channels, note 7

-0.2

0

0.2

dB

Mute attenuation

MATT

AC measurement

96

dB

Note 6. Gain value for each gain setting is measured as AC measurement relative to GABS assuming a gain step size of 0.5dB. Gain

settings 65…255 are tested in production. Gain error for lower gain settings is guaranteed by design only.

Note 7. Gain mismatch is tested in production for gain settings 90…255. Mismatch for lower gain settings is guaranteed by design only.

N Audio Performance

(AVCC=+5.0 V, AGND=0 V, TA=+25

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Noise

N

Vin = 0V, Vout with OP2277,

A-weighting

gain=0dB

gain=-40dB

gain=-60dB

gain=mute

11

3.7

2.2

1.8

µ

Vrms

3rd harmonic

component

3

Vin=5Vrms, gain=0dB,

fin=800Hz

-75

dB

Total harmonic

distortion plus noise

THD

Vin=5Vrms, gain=0dB,

fin=800Hz, 10 harmonics

-72

-68

dB

Signal to noise ratio

SNR

Vin=5Vrms, gain=0dB,

fin=800Hz, non-weighted

100

dB

Crosstalk

CR

Between channels, Vin =

5Vrms, gain= 0dB, fin = 1kHz

-110

dB

N Peak Level Detection

(AVCC=+5.0 V, AGND=0 V, TA=+25

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Peak detector

minimum level

VMIN

PD reference = 0

0

18

500

mV

Peak detector

maximum level

VMAX

PD reference = 255

18

18.5

20

V

Peak detector step

size

VSTEP

60

72.5

90

mV

N Zero Cross Detection Timeout

(AVCC=+5.0 V, AGND=0 V, TA=+25

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Zero cross

detection timeout

TDEL

15

22

30

ms