Texas Instruments TAS5110D6REF manual FFT With -60 dB Input Signal Channel

Typical Characteristics Graphs

Figure 3–3. FFT With –60 dB Input Signal – Channel 1

+0

–5

–10

Power Supply = 26.5 V DC

–15

Input Signal = 1 kHz

–20

Load = 6 Ω

–25

Sample Frequency = 48 kHz

–30

Filter = AES17

–35

FFT Size = 16 kΩ

–40

Reference = 15.8 V = Full Scale

–45

–50

–55

d

–60

–65

B

–70

r

A –75

–80

–85

–90

–95

–100

–105

–110

–115

–120

–125

–130

–135

–140

1k

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21k 22k

0

Frequency – Hz

Figure 3–4. Noise Floor – Channel 1

+0

–5

–10

Power Supply = 26.5 V DC

–15

Input Signal = 0 FS

–20

Load = 6 Ω

–25

Sample Frequency = 48 kHz

–30

FFT Size = 16 kΩ

–35

Reference = 15.8 V = Full Scale

–40

–45

–50

–55

d

–60

–65

B

–70

r

A

–75

–80

–85

–90

–95

–100

–105

–110

–115

–120

–125

–130

–135

–140

5k

10k

15k

20k

25k

30k

35k

40k

45k

50k

55k

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Hz

3-4