PCM1741

5

SBAS175

TYPICAL PERFORMANCE CURVES

All specifications at TA = +25°C, VCC = VDD = 3.3V, system clock = 384fS (fS = 44.1kHz), and 24-bit input data, unless otherwise noted.

DIGITAL FILTER

Digital Filter (De-Emphasis Off

5

4

3

2

1

0

–1

–2

–3

–4

–5

TRANSITION CHARACTERISTICS (Slow Roll-Off)

0

0.1

0.2

0.3

0.4

0.5

Frequency (x f

S)

0

–20

–40

–60

–80

–100

–120

–140

FREQUENCY RESPONSE (Sharp Roll-Off)

01

2

3

4

Frequency (x f

S)

0.05

0.04

0.03

0.02

0.01

0

–0.01

–0.02

–0.03

–0.04

–0.05

FREQUENCY RESPONSE PASSBAND

(Sharp Roll-Off)

0

0.1

0.2

0.3

0.4

0.5

Frequency (x f

S)

0

–20

–40

–60

–80

–100

–120

–140

FREQUENCY RESPONSE (Slow Roll-Off)

01

2

3

4

Frequency (x f

S)

De-Emphasis

0.0

–1.0

–2.0

–3.0

–4.0

–5.0

–6.0

–7.0

–8.0

–9.0

–10.0

DE-EMPHASIS (f

S = 32kHz)

0

2468

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

S = 32kHz)

0

2468

10

12

14

Frequency (kHz)