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SI4021 数据表(PDF) 10 Page - Silicon Laboratories

部件名 SI4021
功能描述  Automatic antenna tuning circuit
Download  35 Pages
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制造商  SILABS [Silicon Laboratories]
网页  http://www.silabs.com
标志 SILABS - Silicon Laboratories

SI4021 数据表(HTML) 10 Page - Silicon Laboratories

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Si4021
10
TYPICAL PERFORMANCE DATA
Phase noise measurements in the 868 MHz ISM band
50% Charge pump current setting
(Ref. level: -60 dBc/Hz, 10 dB/div)
100, 50, 33% Charge pump current settings
(Ref. level: -70 dBc/Hz, 5 dB/div)
11:52:47 May 5, 2005
Phase Noise
L
Marker
Trace
Ty pe
X Axis
Value
1
2
3
4
2
2
2
2
S p o t
F r e q
S p o t
F r e q
S p o t
F r e q
S p o t
F r e q
1 0
k H z
1 5 1
k H z
1
M H z
5 . 0 0 8
M H z
- 7 6 . 6 5
d B c / H z
- 8 6 . 9 5
d B c / H z
- 1 0 7 . 1 1
d B c / H z
- 1 1 5 . 6 5
d B c / H z
10 kHz
10 MHz
Frequency Of f set
Carrier Power
Atten
Mkr
Ref -60.00dBc/Hz
10.00
dB/
1
2
3
4
-11.11 dBm
0.00 dB
4
5.00800 MHz
-115.65 dBc/Hz
13:30:49 May 5, 2005
Phase Noise
L
Marker
Trace
Ty pe
X Axis
Value
1
2
3
1
2
3
S p o t
F r e q
S p o t
F r e q
S p o t
F r e q
1
M H z
1
M H z
1
M H z
- 1 0 1 . 9 5
d B c / H z
- 1 0 7 . 0 5
d B c / H z
- 1 0 9 . 9 8
d B c / H z
10 kHz
10 MHz
Frequency Of f set
Carrier Power
Atten
Mkr
Ref -70.00dBc/Hz
5.00
dB/
1
2
3
-11.03 dBm
0.00 dB
1
1.00000 MHz
-101.95 dBc/Hz
Unmodulated RF Spectrum
The output spectrum is measured at different frequencies. The output is loaded with 50 Ohms through a matching network.
At 868 MHz
At 915 MHz
10:26:50 May 5, 2005
L
Ref 0 dBm
Atten 10 dB
Mkr1 868.0010 MHz
-12.2 dBm
Samp
Log
10
dB/
VAv g
100
W1 S2
S3 FC
AA
Center 868 MHz
Res BW 10 kHz
VBW 10 kHz
Span 2 MHz
Sw eep 40.74 ms (2001 pts)
1
10:34:57 May 5, 2005
L
Ref 0 dBm
Atten 10 dB
Mkr1 915.0020 MHz
-14.09 dBm
Samp
Log
10
dB/
VAv g
100
W1 S2
S3 FC
AA
Center 915 MHz
Res BW 10 kHz
VBW 10 kHz
Span 2 MHz
Sw eep 40.74 ms (2001 pts)
1


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