參數(shù)資料
型號(hào)： LX5501ASE
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi)： 衰減器
英文描述： InGAP HBT Gain Block
中文描述： 0 MHz - 6000 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER
封裝： ROHS COMPLIANT, PLASTIC, SOT-23, 5 PIN
文件頁(yè)數(shù)： 4/7頁(yè)
文件大?。?/td> 160K
代理商： LX5501ASE
LX5501A
P
RODUCTION
D
ATA
S
HEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2004
Rev. 1.1, 2005-07-14
W
M
.
C
InGAP HBT Gain Block
TM
A P P L I C A T I O N N O T E
D
ESIGN
C
ONSIDERATIONS
The gain block is self-biased by the voltage that is present
on pin 5 (V
BIAS
). Chart 1 shows the quiescent current vs. bias
voltage characteristic. Chart 2 shows device characteristics
when operated with a 5v supply and with different values of
external resistor. Using Chart 2 it is possible to trade-off Gain
and P1dB compression point for supply current.
Supply voltages other than 5v may be accommodated by
adjusting the value of the external resistor to produce the
same quiescent current as the 5v case. To calculate the
resistor required for a different supply voltage use the
following formula:
EXT
EXT
BIAS
BIAS
R
(V1)=R
(5V)(V1-V
) (5-V
)
Where V
BIAS
is the Pin 5 bias voltage obtained from
Chart 1and V1 is the desired supply voltage.
T Y P C A L Q U I E S C E N T C U R R E N T V S . P I N 5
B I A S V O L T A G E @ 2 5
°
C
T Y P C A L P 1 D B , G A I N A N D I C V S . R
E X T
@ 2 5
°
C
0
10
20
30
40
50
60
70
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Pin 5 Bias Voltage - Volts
I
Icq
0
2
4
6
8
10
12
14
25
75
125
175
Rext - ohms
G
0
5
10
15
20
25
30
35
I
Gain
Ic
P1dB
Frequency = 5.8GHz, V
CC
= 5V
T Y P C A L S -P A R A M E T R S @ 2 5
°
C
T Y P C A L 2 . 4 G H Z C H A R A C T E R I S T I C S @ 2 5
°
C
S21
S11
S12
S22
0
2
4
6
8
10
12
14
16
18
2
3
5
6
Frequency - GHz
S
-30
-25
-20
-15
-10
-5
0
S
V
CC
= 5V, R
EXT
= 50
P1dB = 12.0
dBm
-10
-5
0
5
10
15
20
-25
-20
-15
-10
-5
0
5
Pin - dBm
P
0
5
10
15
20
25
30
35
40
45
50
I
P1dB
Pout
Gain
Ic
V
CC
= 5V, R
EXT
= 50
A
P
P
L
I
C
A
T
I
O
N
S
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