LTC5588-1
TYPICAL APPLICATION
3.3V
24
18
1nF + 4.7μF
s2
V
LTC5588-1
RF = 200MHz
TO 6000MHz
21
22
CC
I-DAC
VmI
I-CHANNEL
6.8pF
PA
1
0o
12,14,17,
19, 26
EN
0.2pF
90o
Q-CHANNEL
10
9
Q-DAC
VmI
3.3V
4
LINOPT
7
1
2
3
LD
SCK
SDI
BASEBAND
GENERATOR
3
4
2, 5, 8, 11, 20
23, 25
6
DAC
LTC2630
1nF
50Ω
1nF
5
VCO/SYNTHESIZER
55881 F14
Figure 14. 200MHz to 6000MHz Direct Conversion Transmitter Application
RELATED PARTS
PART NUMBER
Infrastructure
LT®5518
DESCRIPTION
COMMENTS
1.5GHz to 2.4GHz High Linearity Direct Quadrature
Modulator
22.8dBm OIP3 at 2GHz, –158.2dBm/Hz Noise Floor, 3kΩ 2.1V
Baseband Interface, 5V/128mA Supply
DC
LT5528
LT5558
LT5568
LT5571
LT5572
LTC5598
1.5GHz to 2.4GHz High Linearity Direct Quadrature
Modulator
21.8dBm OIP3 at 2GHz, –159.3dBm/Hz Noise Floor, 50Ω 0.5V
Baseband Interface, 5V/128mA Supply
DC
600MHz to 1100MHz High Linearity Direct Quadrature
Modulator
22.4dBm OIP3 at 900MHz, –158dBm/Hz Noise Floor, 3kΩ 2.1V
Baseband Interface, 5V/108mA Supply
DC
700MHz to 1050MHz High Linearity Direct Quadrature
Modulator
22.9dBm OIP3 at 850MHz, –160.3dBm/Hz Noise Floor, 50Ω 0.5V
Baseband Interface, 5V/117mA Supply
DC
620MHz to 1100MHz High Linearity Direct Quadrature
Modulator
21.7dBm OIP3 at 900MHz, –159dBm/Hz Noise Floor, Hi-Z 0.5V
Baseband Interface, 5V/97mA Supply
DC
1.5GHz to 2.5GHz High Linearity Direct Quadrature
Modulator
21.6dBm OIP3 at 2GHz, –158.6dBm/Hz Noise Floor, Hi-Z 0.5V
Baseband Interface, 5V/120mA Supply
DC
5MHz to 1600MHz High Linearity Direct Quadrature
Modulator
27.7dBm OIP3 at 140MHz, –160dBm/Hz Noise Floor with P
= 5dBm
OUT
LTC5540/LTC5541/ 600MHz to 4GHz High Linearity Downconverting Mixers
LTC5542/LTC5543
IIP3 = 26.4dBm, 8dB Conversion Gain, <10dB NF, 3.3V/190mA Supply
Current
LT5527
400MHz to 3.7GHz, 5V Downconverting Mixer
2.3dB Gain, 23.5dBm IIP3, 12.5dB NF at 1900MHz, 5V/78mA Supply
Current
LT5557
400MHz to 3.7GHz, 3.3V Downconverting Mixer
2.9dB Gain, 24.7dBm IIP3, 11.7dB NF at 1950MHz, 3.3V/82mA Supply
Current
RF Power Detector
LT5581
6GHz Low Power RMS Detector
40dB Dynamic Range, 1dB Accuracy Over Temperature, 1.5mA Supply
Current
LTC5582
40MHz to 10GHz RMS Power Detector
57dB Dynamic Range, 1dB Accuracy Over Temperature, Single-Ended
RF Input (No Transformer)
55881fb
LT 0311 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
30
●
●
© LINEAR TECHNOLOGY CORPORATION 2010
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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