®

5

PCM1737

TYPICAL PERFORMANCE CURVES

All specifications at TA = +25°C, VDD = VCC = 5V, SYSCLK = 384fS (fS = 44.1kHz), and 24-bit input data, unless otherwise noted.

DIGITAL FILTER

Digital Filter (De-Emphasis Off, f

S = 44.1kHz)

0

0.5

1

1.5

2

2.5

3

3.5

4

0

–20

–40

–60

–80

–100

–120

–140

–160

FREQUENCY RESPONSE

(Sharp Roll-Off)

Frequency (x f

S)

PASSBAND RIPPLE

(Sharp Roll-Off)

Frequency (x f

S)

0.003

0.002

0.001

0

–0.001

–0.002

–0.003

0

0.1

0.2

0.3

0.4

0.5

TRANSITION CHARACTERISTICS

(Slow Roll-Off 1)

Frequency (x f

S)

0

–2

–4

–6

–8

–10

–12

–14

–16

–18

–20

0

0.1

0.2

0.3

0.4

0.5

0.6

FREQUENCY RESPONSE

(Slow Roll-Off 1)

Frequency (x f

S)

0

–20

–40

–60

–80

–100

–120

–140

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

FREQUENCY RESPONSE

(Slow Roll-Off 2)

Frequency (x f

S)

0

–20

–40

–60

–80

–100

–120

–140

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

TRANSITION CHARACTERISTICS

(Slow Roll-Off 2)

Frequency (x f

S)

0

–1

–2

–3

–4

–5

–6

–7

–8

–9

–10

0

0.1

0.2

0.3

0.4

0.5

0.6