PCM1740

6

SBAS128B

www.ti.com

TYPICAL CHARACTERISTICS (Cont.)

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

ANALOG FILTER

(1Hz to 10MHz)

Log Frequency (Hz)

20

0

–20

–40

–60

–80

–100

0

0.2

0.1

0.1

0.3

0.4

0.4

0.5

ANALOG FILTER

(1Hz to 20kHz)

Log Frequency (Hz)

0.05

0

–0.05

–0.1

–0.15

110

1k

100

10k

100k

SUPPLY CURRENT vs SAMPLING FREQUENCY

Sampling Frequency (kHz)

35

30

25

20

32

64

88.2

44.1

48

96.0

THD+N (FS), DYNAMIC RANGE, and SNR

vs SUPPLY VOLTAGE

(Temperature = 25

°C, 384f

S, fS = 44.1kHz)

Supply Voltage (V)

0.005

0.004

0.003

0.002

0.001

0.000

95

94

93

92

91

90

4.25

4.5

5.25

4.75

5

5.5

5.75

SNR

THD+N

Dynamic Range

THD+N (FS), DYNAMIC RANGE, and SNR

vs TEMPERATURE

(V

CC = VDD = VPP = 5V, 384fS, fS = 44.1kHz)

Temperature (

°C)

0.005

0.004

0.003

0.002

0.001

0.000

95

94

93

92

91

90

–50

–25

50

0

25

75

100

SNR

THD+N

Dynamic Range

THD+N (FS), DYNAMIC RANGE, and SNR

vs SAMPLING FREQUENCY

Sampling Frequency (kHz)

0.010

0.008

0.006

0.004

0.002

0.000

96

94

92

90

88

86

32

64

88.2

44.1

48

96.0

SNR

THD+N

Dynamic Range