ad1859jrz Analog Devices, Inc., ad1859jrz Datasheet - Page 14

• Manufacturer Part Number: ad1859jrz
• Description: Stereo, Single-supply 18-bit Integrated Dac
• Manufacturer: Analog Devices, Inc.

AD1859
TYPICAL PERFORMANCE
Figures 24 through 27 illustrate the typical analog performance
of the AD1859 as measured by an Audio Precision System One.
Signal-to-Noise (dynamic range) and THD+N performance is
shown under a range of conditions. Note that there is a small
variance between the AD1859 analog performance specifica-
tions and some of the performance plots. This is because the
Audio Precision System One measures THD and noise over a
Figure 24. 1 kHz Tone at –0.5 dBFS (16K-Point FFT)
Figure 25. 1 kHz Tone at –10 dBFS (16K-Point FFT)
Figure 26. THD+N vs. Frequency at –0.5 dBFS
–100
–110
–120
–130
–140
–100
–110
–100
–110
–120
–130
–140
–90
–90
–90
–10
–20
–30
–40
–50
–60
–70
–80
–10
–20
–30
–40
–50
–60
–70
–80
–10
–20
–30
–40
–50
–60
–70
–80
0
0
0
0
0
0
F
THD+N vs FREQ @ –0.5dBFS
F
FFT @ –10dBFS
F
FFT @ –0.5dBFS
S
S
2k
2k
S
2k
= 44.1kHz
= 44.1kHz
= 44.1kHz
4k
4k
4k
6k
6k
6k
FREQUENCY – Hz
FREQUENCY – Hz
FREQUENCY – Hz
8k
8k
8k
10k
10k
10k
12k
12k
12k
14k
14k
14k
16k
16k
16k
18k
18k
18k
20k
20k
20k
–14–
20 Hz to 24 kHz bandwidth, while the analog performance is
specified over a 20 Hz to 20 kHz bandwidth (i.e., the AD1859
performs slightly better than the plots indicate). Figure 28
shows the power supply rejection performance of the AD1859.
The channel separation performance of the AD1859 is shown in
Figure 29. The AD1859’s low level linearity is shown in Figure
30. The digital filter transfer function is shown in Figure 31.
Figure 28. Power Supply Rejection to 300 mV p-p on AV
Figure 29. Channel Separation vs. Frequency at –0.5 dBFS
–100
–110
–100
–110
–120
–90
–90
–10
–20
–30
–40
–50
–60
–70
–80
–40
–45
–50
–55
–60
–65
–70
–75
–80
–10
–20
–30
–40
–50
–60
–70
–80
Figure 27. THD+N vs. Amplitude at 1 kHz
–100
0
0
0
0
FS = 44.1kHz
THD+N vs dBFS @ 1kHz
–90
2k
2k
F
S
= 44.1kHz
–80
4k
4k
RIGHT CHANNEL
LEFT CHANNEL
–70
6k
6k
AMPLITUDE – dBFS
FREQUENCY – Hz
FREQUENCY – Hz
–60
8k
8k
10k
10k
–50
12k
12k
–40
14k
14k
–30
16k
16k
–20
18k
18k
–10
20k
20k
REV. A
0
DD