Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LTC5594 Datasheet(PDF) 20 Page - Linear Technology

Part # LTC5594
Description  300MHz to 9GHz High Linearity I/Q Demodulator with Wideband IF Amplifier
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC5594 Datasheet(HTML) 20 Page - Linear Technology

Back Button LTC5594 Datasheet HTML 16Page - Linear Technology LTC5594 Datasheet HTML 17Page - Linear Technology LTC5594 Datasheet HTML 18Page - Linear Technology LTC5594 Datasheet HTML 19Page - Linear Technology LTC5594 Datasheet HTML 20Page - Linear Technology LTC5594 Datasheet HTML 21Page - Linear Technology LTC5594 Datasheet HTML 22Page - Linear Technology LTC5594 Datasheet HTML 23Page - Linear Technology LTC5594 Datasheet HTML 24Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 20 / 32 page
background image
LTC5594
20
5594f
For more information www.linear.com/LTC5594
APPLICATIONS INFORMATION
Figure 5. RF Input Return Loss with C2 = 0.2pF and 6.8pF
Table 1. RF Input Impedance
FREQUENCY
(MHz)
INPUT IMPEDANCE (Ω)
S11
MAG
ANGLE (°)
300
30.0 + j57.1
0.594
122.5
1000
66.8 – j5.3
0.151
–17.6
1500
49.4 – j10.4
0.092
–94.0
2000
46.8 + j4.0
0.048
133.7
2500
48.9 + j12.8
0.113
96.0
3000
56.5 + j10.6
0.111
56.5
3500
62.7 – j5.8
0.124
–24.0
4000
61.5 – j23.6
0.233
–62.6
4500
55.4 – j30.6
0.278
–78.5
5000
47.0 – j26.3
0.236
–97.9
5500
38.6 – j16.1
0.191
–133.2
6000
33.7 – j7.5
0.206
–162.0
7000
32.3 – j12.0
0.240
–155.2
8000
33.9 + j0.1
0.192
179.7
9000
48.0 + j44.0
0.404
93.6
Figure 6. Simplified Schematic of the LO Inputs with Single-Ended Drive
LO Input Port
The demodulator’s LO input interface is shown in Figure 6.
The input consists of a programmable input match and a
high precision quadrature phase shifter which generates
0° and 90° phase shifted LO signals for the LO buffer
amplifiers to drive the I/Q mixers. DC blocking capacitors
are required on the LOP and LOM inputs. When using a
single-ended LO input, it is necessary to terminate the
unused LO input (LOP in Figure 6) into 50Ω.
The programmable input match adjust is controlled by
the BAND, CF1, LF1, and CF2 registers as detailed in the
register map shown in Table 2. The return loss for the
register setting in Table 2 is shown in Figure 7.
Table 2. Register Settings for Single-Ended LO Matching
LO FREQUENCY (MHz)
BAND
CF1
LF1
CF2
300 to 339
0
31
3
31
339 to 398
0
21
3
24
398 to 419
0
14
3
23
419 to 556
0
17
2
31
556 to 625
0
10
2
23
625 to 801
0
15
1
31
801 to 831
0
14
1
27
831 to 1046
0
8
1
21
1046 to 1242
1
31
3
31
1242 to 1411
1
21
3
28
1411 to 1696
1
17
2
26
1696 to 2070
1
15
1
31
Default
1
8
3
3
2070 to 2470
1
8
1
21
2470 to 2980
1
2
1
10
2980 to 3500
1
1
0
19
3500 to 9000
1
0
0
0
0
1
2
3
4
5
6
7
8
9 10
5
0
–5
–10
–15
–20
–25
–30
–35
RF FREQUENCY (GHz)
C2 = 0.2pF
C2 = 6.8pF
TC = 25°C
5594 F05
C5
C6
1000pF
C7
C8
R1
Cx
LTC5594
LOM
LO
INPUT
(MATCHED)
GND
VCC
LOP
LO
0º
90º
Z0 = 50
L = Lt
TL1
MATCH
ADJUST
5594 F06



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com