DS641F2

33

CS8421

All performance plots represent typical performance. Measurements for all performance plots were taken under the

following conditions, unless otherwise stated:

•

VD = 2.5 V, VL = 3.3 V

•

Serial Audio Input port set to slave

•

Serial Audio Output port set to slave

•

Input and output clocks and data are asynchronous

•

XTI/XTO = 27 MHz

•

Input signal = 1.000 kHz, 0 dBFS

•

Measurement Bandwidth = 20 to (Fso/2) Hz

•

Word Width = 24 Bits

-180

-110

-175

-170

-165

-160

-155

-150

-145

-140

-135

-130

-125

-120

-115

d

B

F

S

0

20k

2.5k

5k

7.5k

10k

12.5k

15k

17.5k

Hz

-180

-110

-175

-170

-165

-160

-155

-150

-145

-140

-135

-130

-125

-120

-115

d

B

F

S

-140

+0

-120

-100

-80

-60

-40

-20

dBFS

Figure 63. THD+N vs. Frequency Input, 0 dBFS,

48 kHz:44.1 kHz

Figure 64. THD+N vs. Frequency Input, 0 dBFS,

48 kHz:96 kHz

-180

-110

-175

-170

-165

-160

-155

-150

-145

-140

-135

-130

-125

-120

-115

d

B

F

S

0

20k

2.5k

5k

7.5k

10k

12.5k

15k

17.5k

Hz

-180

-110

-175

-170

-165

-160

-155

-150

-145

-140

-135

-130

-125

-120

-115

d

B

F

S

0

20k

2.5k

5k

7.5k

10k

12.5k

15k

17.5k

Hz

Figure 65. THD+N vs. Frequency Input, 0 dBFS,

44.1 kHz:48 kHz

Figure 66. THD+N vs. Frequency Input, 0 dBFS,

96 kHz:48 kHz