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LT5503 Datasheet(PDF) 12 Page - Linear Technology

Part # LT5503
Description  1.2GHz to 2.7GHz Direct IQ Modulator and Mixer
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT5503 Datasheet(HTML) 12 Page - Linear Technology

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LT5503
12
Figure 2. Test Schematic for 1.2GHz, 1.9GHz and 2.4GHz Applications
20
19
18
17
16
15
14
13
12
11
LO1IN
LO2IN
1
2
3
4
5
6
7
8
9
10
LT5503
5503 F02
1
2
3
4
5
C9
C13
8.2pF
C43
8.2pF
MIXRFOUT
T1
BQ–
BQ+
GC1
MODIN
VCCMOD
VCCRF
LO1
VCCLO1
DMODE
MX+
BI–
BI+
GC2
MODOUT
VCCVGA
VCCLO2
LO2
MODEN
MIXEN
MX–
C5
C6
C10
C20
1000pF
C16
1
µF
C18
1
µF
L6
L5
MODEN
MIXEN
C15
1
µF
C17
1
µF
C22
1000pF
C1
2.2pF
C7
C2
C19
0.01
µF
C23
C14
100pF
C3
GC1
GC2
MODRFIN
MODRFOUT
C11
C12
1000pF
C21
0.01
µF
C4
VCC2
VCC1
VCC1
QB
Q
IB
I
L3
L4
DMODE
R2
47
Ω
R1
L1
L2
NOTE: VCC1 AND VCC2 POWER THE
MODULATOR AND UPMIXER
SECTIONS RESPECTIVELY.
GND
21 (BACKSIDE)
TEST CIRCUIT
Application Dependent Component Values
1.2GHz Matching
(Modulator Only)
1.9GHz Matching
2.4GHz Matching
L1
33nH
22nH
18nH
L2
12nH
5.6nH
2.7nH
L3
12nH
4.7nH
2.7nH
C2, C3, C7
39pF
15pF
8.2pF
C10
2.7pF
1.8pF
1.2pF
C23
n/a
1.5pF
1.5pF
R1
240
Ω
390
Ω
390
Ω
C4
n/a
15pF
8.2pF
C5, C6
n/a
1.8pF
2.2pF
C9
n/a
15pF
2.7pF
C11
n/a
2.2pF
1.2pF
L4
n/a
6.8nH
4.7nH
L5,L6
n/a
5.6nH
2.2nH
T1
n/a
LDB15C101A1900
LDB15C500A2400



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