GS3018 Просмотр технического описания (PDF) - Gennum -> Semtech
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GS3018 Datasheet PDF : 6 Pages
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1.3VDC
1
C1
4µ7
S1 a
C2
2
R1
b
4 47n 10k
3k9
CEXT
VIN
1kHz
3
RMIC
3
-A
2
GR504
-B
5k
1
2A 10
RP1
-C
RP2
9
87 6
5
RFA
100k
All resistors in ohms, all capacitors
in farads unless otherwise stated.
6 7 13
C3
68n
14 8 15 16 12 11
RFB
RMPO
100k
Fig. 5 Characterization Circuit
(used to generate typical curves)
4
9
C5
1n8
5
10
C4
68n
C6
1n8
VOUT
50k
GS3018
-10
-20
RFA=100k
-30
RFA=47k
-40
RFA=22k
-50
RFA=10k
-60
-70
-80
-140 -130 -120 -110 -100 -90 -80
INPUT (dBV)
-70 -60
-50 -40
Fig. 6 Input vs Output (RMPO = 0)
2
-2
-6
-10
-14
-18
-22
-26
-30
20
47nF(S1=a)
CEXT=22nF(S1=b)
CEXT=10nF(S1=b)
100
1k
FREQUENCY (Hz)
Fig. 8 Frequency Response vs CIN
10k 20k
5
-10
-15
RMPO=0
-20
RMPO=3k3
-25
-30
RMPO=10k
-35
-40
-45
-50
-100 -90
-80
-70
-60
INPUT (dBV)
-50
-40
Fig. 7 Maximum Power Output vs RMPO
10
9
8
7
6
5
4
3
2
1
0
-100 -96 -92 -88 -84
-80 -76
INPUT (dBV)
-72 -68
Fig. 9 THD vs Input (RFA=100k, RMPO=0)
521 - 09 - 03
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