PCM1796DB datasheet(13/57 Pages) BURR-BROWN

13 / 57 page

PCM1796

SLES100 − DECEMBER 2003

www.ti.com

NOTE: PCM mode, fS = 48 kHz, 32768 point 8 average, TA = 25°C,

VDD = 3.3 V VCC = 5 V, measurement circuit is Figure 36.

Figure 19. −60-dB Output Spectrum, BW = 20 kHz

f − Frequency − kHz

−160

−140

−120

−100

−80

−60

−40

−20

1012

141618

AMPLITUDE

FREQUENCY

NOTE: PCM mode, fS = 96 kHz, 32768 point 8 average, TA = 25°C,

VDD = 3.3 V VCC = 5 V, measurement circuit is Figure 36.

Figure 20. −60-dB Output Spectrum, BW = 100 kHz

f − Frequency − kHz

−160

−140

−120

−100

−80

−60

−40

−20

102030

405060

708090

100

AMPLITUDE

FREQUENCY

NOTE: PCM mode, fS = 48 kHz, TA = 25°C, VDD = 3.3 V, VCC = 5 V,

measurement circuit is Figure 36.

Figure 21. THD+N vs Input Level, PCM Mode

−90 −80 −70

−60 −50

−40 −30

−20 −10

Input Level − dBFS

TOTAL HARMONIC DISTORTION + NOISE

INPUT LEVEL

0.1

0.01

0.001

0.0001

NOTE: DSD mode (FIR-2), 32768 point 8 average, TA = 25°C,

VDD = 3.3 V, VCC = 5 V, measurement circuit is Figure 37.

Figure 22. −60-dB Output Spectrum, DSD Mode

f − Frequency − kHz

−160

−140

−120

−100

−80

−60

−40

−20

1012

141618

AMPLITUDE

FREQUENCY

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