PCM4108

SBAS354 − JUNE 2005

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12

TYPICAL CHARACTERISTICS (continued)

All parameters are specified at TA = +25°C with VCC = +5V, VDD = +3.3V, and a measurement bandwidth from 10Hz to 20kHz, unless otherwise

noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for Quad Rate sampling mode.

THD+N vs AMPLITUDE

Amplitude (dBFS)

−80

−85

−90

−95

−100

−105

−110

−115

−120

f

f

24−Bit Data

THD+N vs AMPLITUDE

Amplitude (dBFS)

−80

−85

−90

−95

−100

−105

−110

−115

−120

f

f

16−Bit Data

0

−20

−40

−60

−80

−100

−120

−140

−160

FREQUENCY RESPONSE

01

2

3

4

Frequency (x f

0.003

0.002

0.001

0

−0.001

−0.002

−0.003

PASSBAND RIPPLE

0

0.1

0.2

0.3

0.4

0.5

Frequency (x f

0.0

−1.0

−2.0

−3.0

−4.0

−5.0

−6.0

−7.0

−8.0

−9.0

−10.0

DE−EMPHASIS FILTER RESPONSE (f

02468

10

12

14

Frequency (kHz)

0.5

0.4

0.3

0.2

0.1

0.0

−0.1

−0.2

−0.3

−0.4

−0.5

DE−EMPHASIS ERROR (f

02

468

10

12

14

Frequency (kHz)