AD1854JRS Analog Devices Inc, AD1854JRS Datasheet - Page 11

• Manufacturer Part Number: AD1854JRS
• Description: IC DAC STEREO 96KHZ 5V 28SSOP
• Manufacturer: Analog Devices Inc

Specifications of AD1854JRS

• Rohs Status: RoHS non-compliant
• Number Of Bits: 20
• Data Interface: DSP, I²S, Serial
• Number Of Converters: 2
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 250mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• For Use With: EVAL-AD1854EB - BOARD EVAL FOR AD1854
• Settling Time: -

TYPICAL PERFORMANCE
Figures 13 through 20 illustrate the typical analog performance
of the AD1854 as measured by an Audio Precision System Two.
Signal-to-Noise and THD+N performance are shown under a
range of conditions. Figure 14 shows the power supply rejection
REV. A
Figure 13. THD+N at 1 kHz, –0.5 dBFS (8K-Point FFT)
–100
–105
–110
–115
–120
–125
–130
–135
–140
–145
–150
–155
–160
–100
–110
–120
–130
–140
–150
–160
–100
–105
–110
–90
–10
–20
–30
–40
–50
–60
–70
–80
–60
–65
–70
–75
–80
–85
–90
–95
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
Figure 15. Dynamic Range: 1 kHz at –60 dBFS
(8K Point FFT)
Figure 14. THD+N vs. Frequency at –0.5 dBFS
0
0
0
0
2
2
2
4
4
4
6
6
6
FREQUENCY – kHz
FREQUENCY – kHz
FREQUENCY – kHz
8
8
8
10
10
10
12
12
12
14
14
14
16
16
16
18
18
18
20
20
20
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
–115
–120
–125
–130
–135
–140
–145
–150
–155
–160
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
0
–11–
performance of the AD1854. Figure 15 shows the noise floor of
the AD1854. The digital filter transfer function is shown in
Figure 16. The two-tone test in Figure 17 is per the SMPTE
Standard for Measuring Intermodulation Distortion.
Figure 17. Power Supply Rejection to 300 mV p-p on AV
Figure 18. Noise Floor, A-Weighted (8K-Point FFT)
–100
–120
–100
–110
–120
–130
–140
–150
–160
–20
–40
–60
–80
–10
–20
–30
–40
–50
–60
–70
–80
–90
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
–120
0
0
20
0
–110 –100 –90 –80 –70 –60 –50 –40 –30
Figure 16. THD+N vs. Level at 1 kHz
50
2
4
100
6
200
AMPLITUDE – dBFS
FREQUENCY – kHz
FREQUENCY – Hz
8
500
10
1k
12
2k
14
5k
16
–20 –10
AD1854
10k
18
20k
20
0
–40
–60
–80
–100
–120
0
–20
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–120
–130
–140
–150
–110
–160
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
DD