STAC9708 datasheet(49/56 Pages) ETC

49 / 56 page

SigmaTel, Inc.

Preliminary

STAC9708/11

10/02/98

10.6 STAC9711 Analog Performance Characteristics (Tambient = 25 oC, AVdd = DVdd =

3.3V ± 5%, AVss=DVss=0V; 1 kHz input sine wave; Sample Frequency = 48 kHz; 0 dB = 1 Vrms, 10K

Ω/50pF

load, Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)

Table 34. Analog Performance Characteristics

PARAMETER

MIN

TYP

MAX

UNITS

Full Scale Output Voltage:

Line Inputs to line output 3.3V

Line Inputs to LINE_OUT 3.3V @ Line In =

1 Vrms and @ Gain setting of -6 dB

Line Inputs to LINE_OUT 3.3V @ Line In =

0.5 Vrms and @ gain setting of 0dB

PCM to LINE_OUT 3.3V @ full scale PCM input

@PCM gain setting of 0dB

PCM to Line Output 3.3V

MIC Inputs to LINE_OUT 3.3V @ MIC In

= 1 Vrms and @ gain setting of 0dB

0.5

Vrms

Analog S/N:

CD to LINE_OUT 3.3V

Other to LINE_OUT 3.3V

Analog Frequency Response

20,000

Digital S/N

D/A 3.3V

A/D 3.3V

Total Harmonic Distortion:

Line Output

0.02

D/A & A/D Frequency Response

19,200

Transition Band

19,200

28,800

Stop Band

28,800

∞

Stop Band Rejection

+85

−

Out-of-Band Rejection

+40

−

Group Delay

Power Supply Rejection Ratio (1kHz)

+40

−

Crosstalk between Input channels

-70

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