PCM1740

5

SBAS128B

www.ti.com

TYPICAL CHARACTERISTICS

At TA = +25°C, VCC = VDD = +5V, fS = 44.1kHz, fSCKO = 384fS = 16.9344MHz, and 16-bit data, unless otherwise noted.

FREQUENCY RESPONSE

(De-emphasis OFF, f

S = 44.1kHz)

f

S

0

–20

–40

–60

–80

–100

0

123

4

PASSBAND RIPPLE

(De-emphasis OFF, f

S = 44.1kHz)

f

S

0

–0.2

–0.4

–0.6

–0.8

–1

0

0.2

0.1

0.3

0.4

0.5

DE-EMPHASIS FREQUENCY RESPONSE (3kHz)

0

5k

10k

15k

20k

25k

Frequency (Hz)

0

–2

–4

–6

–8

–10

–12

DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)

0

5k

10k

15k

20k

25k

Frequency (Hz)

0

–2

–4

–6

–8

–10

–12

DE-EMPHASIS FREQUENCY RESPONSE (48kHz)

0

5k

10k

15k

20k

25k

Frequency (Hz)

0

–2

–4

–6

–8

–10

–12

DE-EMPHASIS ERROR (3kHz)

0

3628

7256

10884

14512

0

4999.8375

9999.675

14999.5125

19999.35

0

5442

10884

16326

21768

Frequency (Hz)

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

DE-EMPHASIS ERROR (44.1kHz)

Frequency (Hz)

DE-EMPHASIS ERROR (48kHz)

Frequency (Hz)