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EM357-RTR 数据表(PDF) 180 Page - Silicon Laboratories

部件名 EM357-RTR
功能描述  High-Performance, Integrated ZigBee/802.15.4 System-on-Chip
PDF  241 Pages
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制造商  SILABS [Silicon Laboratories]
网页  http://www.silabs.com
标志 SILABS - Silicon Laboratories

EM357-RTR 数据表(HTML) 180 Page - Silicon Laboratories

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Rev 1.3
180
Table 10.7 describes the key ADC parameters measured on Silicon Labs’ EM357 reference design at 25 °C and
VDD_PADS at 3.0 V, for a sampling rate of 6 MHz. The single-ended measurements were done at finput = 7.7%
fNyquist, 0 dBFS level (where full-scale is a 1.2 V p-p swing). The differential measurements were done at
finput = 7.7% fNyquist; –6 dBFS level (where full-scale is a 2.4 V p-p swing) and a common mode voltage of 0.6 V.
Table 10.7. ADC Module Key Parameters for 6 MHz Sampling
Parameter
Performance
ADC_PERIOD
0
1
2
3
4
5
6
7
Conversion Time (µs)
5.33
10.7
21.3
42.7
85.3
171
341
683
Nyquist Freq (kHz)
93.8k
46.9k
23.4k
11.7k
5.86k
2.93k
1.47k
732
3 dB Cut-off (kHz)
56.6k
28.3k
14.1k
7.07k
3.54k
1.77k
884
442
INL (codes peak)1
0.084
0.084
0.15
0.274
0.518
1.057
2.106
4.174
INL (codes RMS)1
0.046
0.044
0.076
0.147
0.292
0.58
1.14
2.352
DNL (codes peak)1
0.026
0.023
0.044
0.052
0.096
0.119
0.196
0.371
DNL (codes RMS)1
0.007
0.009
0.013
0.015
0.024
0.03
0.05
0.082
ENOB
(from single-cycle test)
5.6
7.0
8.5
10.0
11.4
12.6
13.1
13.2
SNR (dB)2
Single-Ended
Differential
35
35
44
44
53
53
62
62
70
71
75
77
76
79
77
80
SINAD (dB)2
Single-Ended
Differential
35
35
44
44
53
53
62
62
68
70
71
75
71
77
71
77
SDFR (dB)
Single-Ended
Differential
60
60
68
69
75
77
75
80
75
80
75
80
75
80
75
80
THD (dB)
Single-Ended
Differential
–45
–45
–54
–54
–63
–63
–68
–71
–70
–76
–70
–77
–70
–78
–70
–78
ENOB (from SNR)2
Single-Ended
Differential
5.6
5.6
7.1
7.1
8.6
8.6
10.0
10.1
11.4
11.5
12.1
12.5
12.4
12.9
12.5
13.0
ENOB (from SINAD)2
Single-Ended
Differential
5.5
5.6
7.0
7.1
8.5
8.6
9.9
10.1
11.0
11.4
11.4
12.4
11.5
12.8
11.5
13.0
Equivalent ADC Bits1
7
[15:9]
8
[15:8]
9
[15:7]
10
[15:6]
11
[15:5]
12
[15:4]
13
[15:3]
14
[15:2]
Notes:
1.
INL and DNL are referenced to a LSB of the Equivalent ADC Bits shown in the last row of this table.
2.
ENOB (effective number of bits) can be calculated from either SNR (signal to non-harmonic noise ratio) or SINAD
(signal-to-noise and distortion ratio).



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