ad1879 Analog Devices, Inc., ad1879 Datasheet - Page 15

• Manufacturer Part Number: ad1879
• Description: High Performance 16-/18-bit Stereo Adcs
• Manufacturer: Analog Devices, Inc.

REV. 0
Figure 23. AD1879 S/(THD+N)—10 kHz Tone at –10 dBFS
(4k-Point FFT)
Figure 24. AD1879 Linearity Test—10 kHz Tone Fade to
Noise
Figure 25. AD1878/AD1879 Common-Mode Rejection
Ratio—0 kHz to 20 kHz
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
0.0
–120
–64
–66
–68
–70
–72
–74
–76
–78
–80
–82
–84
–86
–88
–90
–100
–120
–140
–20
–40
–60
–80
20
0
0
–100
2k
4k
100
6k
–80
AMPLITUDE – dBFS
8k
FREQUENCY – Hz
FREQUENCY – Hz
10k
–60
1k
12k
14k
–40
16k
10k
18k
–20
20k
22k
0
100k
24k
–15–
Figure 26. AD1878/AD1879 Channel Separation—0 kHz to
20 kHz
Figure 27. AD1878/AD1879 Modulator Noise Transfer
Function—0 MHz to 1 MHz
Figure 28. AD1878/AD1879 Digital Filter Signal Transfer
Function—0 MHz to 1 MHz
–110
–130
–150
1e–2
1e–4
1e–5
1e–7
1e–8
–10
–30
–50
–70
–90
10
1M
–100
–105
–110
–115
–120
–125
–130
–135
–140
1u
1e1
1e1
20
1e2
1e2
100
FREQUENCY – Hz
FREQUENCY – Hz
1k
1k
FREQUENCY – Hz
AD1878/AD1879
1k
1e4
1e4
1e5
10k
1e5
1M
1M
20k