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BCW61BLT1 View Datasheet(PDF) - Leshan Radio Company,Ltd

Part Name
Description
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BCW61BLT1
LRC
Leshan Radio Company,Ltd LRC
BCW61BLT1 Datasheet PDF : 6 Pages
1 2 3 4 5 6
LESHAN RADIO COMPANY, LTD.
BCW61BLT1 BCW61CLT1 BCW61DLT1
TYPICAL NOISE CHARACTERISTICS
(V CE = –5.0 Vdc, T A = 25°C)
10
7.0
5.0
3.0
1.0mA
2.0
IC=10 µA
30µA
100µA
300µA
BANDWIDTH = 1.0 Hz
R S ~~ 0
1.0
10
20
50 100 200 500 1.0k 2.0k
f, FREQUENCY (Hz)
Figure 1. Noise Voltage
5.0k 10 k
1.0
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1
10 20
IC=1.0mA
BANDWIDTH = 1.0 Hz
R S ~~
300µA
100µA
30µA
10µA
50 100 200 500 1.0k 2.0k
f, FREQUENCY (Hz)
Figure 2. Noise Current
5.0k 10 k
NOISE FIGURE CONTOURS
(V CE = –5.0 Vdc, T A = 25°C)
1.0M
500k
200k
100k
50k
20k
10k
5.0k
0.5 dB
2.0k
1.0k
500
200
100
10
20 30
1.0 dB
50 70 100
BANDWIDTH = 1.0 Hz
2.0 dB
3.0 dB
5.0dB
200 300 500 700 1.0K
1.0M
500k
200k
100k
50k
20k
10k
5.0k
2.0k
1.0k
500
200
100
10
BANDWIDTH = 1.0 Hz
0.5 dB
20 30 50 70 100
1.0 dB
2.0 dB
3.0 dB
5.0 dB
200 300 500 700 1.0K
I C , COLLECTOR CURRENT (µA)
Figure 3. Narrow Band, 100 Hz
I C , COLLECTOR CURRENT (µA)
Figure 4. Narrow Band, 1.0 kHz
1.0M
500k
200k
100k
50k
20k
10k
5.0k
2.0k
1.0k
500
200
100
10
10 Hz to 15.7KHz
0.5 dB
20 30 50 70 100
1.0 dB
2.0 dB
3.0 dB
5.0 dB
200 300 500 700 1.0K
I C , COLLECTOR CURRENT (µA)
Figure 5. Wideband
Noise Figure is Defined as:
( –––––––––––––––) NF = 20 log 10
e 2 +4KTR +I 2 R 2
n
Sn
S
4KTR S
1/ 2
e n = Noise Voltage of the Transistor referred to the input. (Figure 3)
I n = Noise Current of the Transistor referred to the input. (Figure 4)
K = Boltzman’s Constant (1.38 x 10 –23 j/°K)
T = Temperature of the Source Resistance (°K)
R s = Source Resistance ( )
M10–3/6
 

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