®

9

PCM3500

TYPICAL PERFORMANCE CURVES (Cont.)

TA = +25°C, VCC = VDD = +3.3V, fS = 8kHz, and fSIGNAL = 1kHz, unless otherwise specified.

ADC SECTION

ANALOG FILTER

ANTI-ALIASING FILTER

STOPBAND CHARACTERISTICS

Frequency (Hz)

0

–5

–10

–15

–20

–25

–30

–35

–40

–45

–50

1k

100

10k

100k

1M

10M

ANTI-ALIASING FILTER

PASSBAND CHARACTERISTICS

Frequency (Hz)

0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

–0.7

–0.8

–0.9

–1.0

1k

100

10

1

10k

100k

ADC OUTPUT SPECTRUM (–0.5dB, N = 8192)

Frequency (kHz)

0

–20

–40

–60

–80

–100

–120

–140

12

3

4

0

ADC OUTPUT SPECTRA

ADC OUTPUT SPECTRUM (–60dB, N = 8192)

Frequency (kHz)

0

–20

–40

–60

–80

–100

–120

–140

12

3

4

0

TOTAL HARMONIC DISTORTION + NOISE

vs SIGNAL NOISE

Signal Level (dB)

0

–20

–40

–60

–80

–100

–84

–72

–60

–48

–36

–24

–12

0

–96

THD+N fluctuates with signal level

as harmonics are limited to second

and third components.