Datasheet

ADuC7128/ADuC7129
Rev. 0 | Page 22 of 92
BIN
FREQUENCY
9000
0
1000
2000
3000
4000
5000
6000
7000
8000
1161 1162 1163
06020-014
Figure 18. Code Histogram Plot
FREQUENCY (kHz)
(dB)
0
–160
–140
–120
–100
–80
–60
–40
–20
0100
200
f
S
= 774kSPS,
SNR = 69.3dB,
THD = –80.8dB,
PHSN = –83.4dB
06020-015
Figure 19. Dynamic Performance, f
S
= 774 kSPS
FREQUENCY (kHz)
(dB)
20
0
–160
–140
–120
–100
–80
–60
–40
–20
0110050 200
50
f
S
=1MSPS,
SNR = 70.4dB,
THD = –77.2dB,
PHSN = –78.9dB
06020-016
Figure 20. Dynamic Performance, f
S
= 1 MSPS
EXTERNAL REFERENCE (V)
SNR (dB)
THD (dB)
75
40
45
50
55
60
65
70
–
76
–88
–86
–84
–82
–80
–78
1.01.52.02.53.0
SNR
THD
06020-017
Figure 21. Typical Dynamic Performance vs. V
REF
TEMPERATURE (°C)
CODE
–50 0 50 100
1000
1500
1450
1400
1350
1300
1250
1200
1150
1100
1050
150
06020-018
Figure 22. On-Chip Temperature Sensor Voltage Output vs. Temperature
TEMPERATURE (°C)
(mA)
39.8
39.7
38.9
39.0
39.1
39.2
39.3
39.4
39.5
39.6
–40 25 8501
25
06020-019
Figure 23. Current Consumption vs. Temperature @ CD = 0