EM250-BBRD-R Ember, EM250-BBRD-R Datasheet - Page 97
EM250-BBRD-R
Manufacturer Part Number
EM250-BBRD-R
Description
EM250 BREAKOUT BOARD
Manufacturer
Ember
Type
Transceiver, 802.15.4r
Datasheet
1.EM250-RCM-R.pdf
(126 pages)
Specifications of EM250-BBRD-R
Frequency
2.4GHz
For Use With/related Products
EM250
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
636-1024
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5.5
Parameter
ADC_RATE[2:0]
Conversion Time (μs)
Nyquist Freq (Hz)
3dB Cut-off (Hz)
INL (codes peak)
INL (codes RMS)
DNL (codes peak)
DNL (codes RMS)
ENOB
(from single-cycle test)
SNR (dB)
Single-Ended
Differential
SINAD (dB)
Single-Ended
Differential
SDFR (dB)
Single-Ended
Differential
THD (dB)
Single-Ended
Differential
ENOB (from SNR)
Single-Ended
Differential
ENOB (from SINAD)
Single-Ended
Differential
Equivalent ADC Bits
ADC_DATA[x:y]
ADC Module
The ADC is a first-order sigma-delta converter sampling at 1MHz with programmable resolution and conversion
rate. Table 33 describes the key ADC Module parameter measured at 25°C and VDD_PADS at 3.0V. The single-
ended measurements were done at f
differential measurements were done at f
Note:
INL and DNL are referenced to a LSB of the Equivalent ADC Bits shown in the last row of Table
33. 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).
[15:11]
15.6k
0.04
0.02
0.04
0.02
9.4k
5.5
-55
-57
5.8
7.0
5.8
7.0
32
35
36
35
35
63
61
0
5
Table 33. ADC Module Key Parameters
[15:10]
7.8k
4.7k
0.04
0.02
0.03
0.01
7.0
-63
-64
7.3
8.5
7.3
8.3
64
44
45
44
44
69
70
1
6
input
[15:9]
= 7.7% f
3.9k
2.3k
0.05
0.02
0.04
0.01
10.0
128
input
7.5
-67
-74
8.8
8.8
9.8
53
54
53
53
70
75
2
7
Page 97
= 7.7% f
Nyquist
; 0dBFS level (where full-scale is a 1.2Vp-p swing). The
[15:8]
Nyquist
0.09
0.03
0.04
0.01
10.0
10.3
11.3
10.1
11.3
1.9k
1.1k
Performance
256
-69
-82
62
62
61
62
70
74
3
8
; -6dBFS level (where full-scale is a 2.4Vp-p swing).
[15:7]
0.05
0.04
0.01
11.5
11.5
12.3
11.0
12.3
512
980
590
0.2
-69
-87
69
68
66
68
70
78
4
9
[15:6]
1024
0.09
0.03
12.0
12.3
12.8
11.1
12.8
490
290
0.3
0.1
-69
-93
74
71
67
71
69
80
10
5
[15:5]
2048
0.12
0.03
12.5
12.5
13.1
11.3
13.1
240
140
0.6
0.2
-69
-94
75
73
68
73
70
84
11
6
EM250
120-0082-000S
[15:4]
4096
0.03
12.5
12.3
13.1
11.1
13.0
120
1.2
0.4
0.1
-69
-93
72
74
73
67
72
70
89
12
7
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