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Part Name
Description
T0905-TSPH View Datasheet(PDF) - Atmel Corporation
Part Name
Description
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T0905-TSPH
General-purpose VHF/UHF Power Amplifier(135 to 600 MHz)
Atmel Corporation
T0905-TSPH Datasheet PDF : 9 Pages
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Figure 3.
Application Example for 450-MHz PA with Variable Gain
VCTL
R
3
R
7
R
11
VCTL1
13
GAIN1 VCTL2
16 14
GAIN2 VCTL3
17 15
GAIN3
18
R
14
BGOUT
11
Buf1
Buf2
Buf3
19 VBIAS3
C
4
VCTL 12
C
5
BG
VCC_CTL 10
9
VBIAS2
8 VB2_DC
L
1
C
1
L
2
C
2
VCC_CTL
C
18
C
3
20 VB3_DC
RFIN
L
9
MS5
7
22-25 MS3
L
13
L
8
Match RF1 Match RF2 Match RF3
RFIN1
RFOUT/
L
4
21
65
4 3
28
27
26
VCC3 L
3
C
7
C
19
GND3
GND1 VCC1 GND2 VCC2
VB3
RFin2
GND3
MS1
C
24
MS7
MS6
R
13
L
5
Micro strip lines
length/mm width/mm
MS1
2.5
1
MS2 2
1
MS3
2.5
1.6
MS4 5
0.43
MS5 4
0.43
MS6 3
0.63
MS7 2
0.3
MS8 2
0.3
MS9 4
0.63
MS8
C
28
R
15
MS9
C
26
L
7
C
27
L
10
C
11
L
11
C
9
C
10
C
17
C
15
C
16
MS2
C
14
C
12
C
13
Board material:
Epsilon(r): 4.3; metal Cu: 35 µm;
distance 1. layer - RF ground: 240 µm
VCC1
VCC2
VCC3
MS4
C
8
C
20
C
21
RFOUT
6
T0905 [Preliminary]
4751D–SIGE–05/04
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