LTC5552
3GHz to 20GHz Microwave
Mixer with Wideband DC to 6GHz IF
FEATURES
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DESCRIPTION
The
LTC
®
5552
is a high performance, microwave double
balanced passive mixer that can be used for frequency
upconversion or downconversion. The device is similar
to the LTC5553, but with a broadband, differential DC to
6GHz IF port. The LTC5552 is recommended for applica-
tions where the IF frequency range extends below 500MHz.
For applications where the IF frequency is always above
500MHz, the LTC5553 is recommended, since it includes
an integrated IF balun.
The mixer and integrated RF balun are optimized to cover
the 3GHz to 20GHz RF frequency range. The integrated LO
amplifier is optimized for the 1GHz to 20GHz frequency
range, requiring only 0dBm drive.
The part delivers high IIP3 and P1dB, low LO leakage and
high integration in a small package.
Electrostatic Sensitive Device
Observe Handling Precautions
ESD Sensitivity:
HBM = Class 0 on Pin 11
Class 1C All Other Pins
CDM = 500V All Pins
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Integrated LO Buffer: 0dBm LO Drive
50Ω Wideband Matched RF and LO Ports
Wide IF Bandwidth: DC to 6GHz
Upconversion or Downconversion
High IIP3:
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+22.5dBm at 10GHz
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+18.3dBm at 17GHz
+14.6dBm Input P1dB at 10GHz
8dB Conversion Loss at 10GHz
3.3V/132mA Supply
Fast Turn ON/OFF for TDD Operation
3mm × 2mm, 12-Lead QFN Package
APPLICATIONS
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5G Broadband Wireless Access
Microwave Transceivers
Wireless Backhaul
Point-to-Point Microwave
Phased-Array Antennas
C, X and Ku Band RADAR
Test Equipment
Satellite Modems
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of
Analog Devices, Inc. All other trademarks are the property of their respective owners. Protected
by U.S. patents, including 9312815.
TYPICAL APPLICATION
LTC5552
LNA
RF
LO
R
X
LO
T
X
LO
LO
PA
RF
IF
T
X
IF
IN
IF
R
X
IF
OUT
Conversion Loss and IIP3 vs RF Frequency
(Low Side LO, IF = 240MHz)
25
CONVERSION LOSS (dB), IIP3 (dBm)
23
21
19
17
15
13
11 CONVERSION LOSS
9
7
3
5
7
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
IIP3
DOWNMIXING
UPMIXING
DUPLEXER
LTC5552
5552 TA01a
5552 TA01b
For more information
www.linear.com/LTC5552
1
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LTC5552
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
TOP VIEW
GND
GND
10
9
13
GND
4
GND
5
RF
6
GND
8
7
V
CC
GND
EN
LO
11
Supply Voltage (V
CC
) ..................................................4V
Enable Input Voltage (EN) ................–0.3V to V
CC
+ 0.3V
LO Input Power (1GHz to 20GHz) .................. ….+10dBm
RF Power (3GHz to 20GHz) ................................+20dBm
RF DC Voltage ....................................................... ±0.1V
IF
+
/IF
–
Power (LF to 6GHz) ................................+20dBm
IF
+
/IF
–
DC Voltage ..................................................±0.3V
Operating Temperature Range (T
C
) ........ –40°C to 105°C
Storage Temperature Range .................. –65°C to 150°C
Junction Temperature (T
J
) .................................... 150°C
12
GND
IF
+
IF
–
1
2
3
UDB PACKAGE
12-LEAD (3mm × 2mm) PLASTIC QFN
T
JMAX
= 150°C,
θ
JC
= 25°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
TAPE AND REEL
http://www.linear.com/product/LTC5552#orderinfo
PART MARKING
PACKAGE DESCRIPTION
CASE TEMPERATURE
RANGE
LTC5552IUDB#TRMPBF
LTC5552IUDB#TRPBF
LHCK
12-Lead (3mm × 2mm) Plastic QFN
–40°C to 105°C
TRM = 500 pieces.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Power Supply Requirements
Supply Voltage (V
CC
)
Supply Current
Shutdown Current
Enable (EN) Logic Input
Input High Voltage (On)
Input Low Voltage (Off)
Input Current
Chip Turn-On Time
Chip Turn-Off Time
EN = High
EN = Low
CONDITIONS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. V
CC
= 3.3V, EN = High, unless otherwise noted. Test circuit shown in
Figure 1. (Note 2)
MIN
l
TYP
3.3
132
MAX
3.6
150
100
UNITS
V
mA
μA
V
3.0
l
l
1.2
0.3
–30
0.2
0.1
100
V
μA
μs
μs
–0.3V to V
CC
+ 0.3V
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For more information
www.linear.com/LTC5552
LTC5552
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. V
CC
= 3.3V, EN = High, P
LO
= 0dBm, P
RF
= –6dBm (–6dBm/tone for two-
tone IIP3 tests), unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3)
PARAMETER
LO Frequency Range
RF Frequency Range
IF Frequency Range
RF Return Loss
LO Input Return Loss
LO Input Power
Downmixer Application, IF = 240MHz, Low Side LO
Conversion Loss
RF Input = 4GHz
RF Input = 10GHz
RF Input = 14GHz
RF Input = 17GHz
T
C
= –40°C to 105°C, RF Input = 10GHz
RF Input = 4GHz
RF Input = 10GHz
RF Input = 14GHz
RF Input = 17GHz
RF Input = 10GHz
RF Input = 15.7GHz
f
LO
= 1GHz to 20GHz
f
LO
= 1GHz to 20GHz
f
RF
= 3GHz to 20GHz
f
RF
= 3GHz to 20GHz
RF Input = 10GHz
RF Output = 4GHz
RF Output = 10GHz
RF Output = 14GHz
RF Output = 17GHz
T
C
= –40°C to 105°C, RF Output = 5.8GHz
RF Output = 4GHz
RF Output = 10GHz
RF Output = 14GHz
RF Output = 17GHz
RF Output = 10GHz
RF Output = 15.7GHz
f
LO
= 1GHz to 20GHz
f
LO
= 1GHz to 20GHz
f
IF
= 500MHz to 9GHz
f
IF
= 500MHz to 9GHz
RF Output = 10GHz
l
AC ELECTRICAL CHARACTERISTICS
CONDITIONS
MIN
l
l
l
TYP
1 to 20
3 to 20
DC to 6000
>9
>10
MAX
UNITS
GHz
GHz
MHz
dB
dB
Z
O
= 50Ω, 3GHz to 17GHz
Z
O
= 50Ω, 1GHz to 20GHz
–6
0
6.9
8.0
10.0
10.8
0.007
23.8
22.5
20.1
18.3
9.8
11.7
<–24
<–19
>53
>34
14.6
7.0
8.6
10.8
10.6
0.007
24.6
21.1
17.2
14.4
9.9
11.5
<–24
<–19
>60
>33
14.5
6
dBm
dB
dB
dB
dB
dB/°C
dBm
dBm
dBm
dBm
dB
dB
dBm
dBm
dB
dB
dBm
dB
dB
dB
dB
dB/°C
dBm
dBm
dBm
dBm
dB
dB
dBm
dBm
dB
dB
dBm
Conversion Loss vs Temperature
2-Tone Input 3rd Order Intercept
(Δf
RF
= 2MHz)
SSB Noise Figure
LO to RF Input Leakage
LO to IF Leakage
RF to LO Isolation
RF Input to IF Output Isolation
Input 1dB Compression
Conversion Loss
Upmixer Application, IF = 240MHz, Low Side LO
Conversion Loss vs Temperature
2-Tone Input 3rd Order Intercept
(Δf
IF
= 2MHz)
SSB Noise Figure
LO to RF Output Leakage
LO to IF Input Leakage
IF to LO Isolation
IF Input to RF Output Isolation
Input 1dB Compression
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LTC5552 is guaranteed functional over the –40°C to 105°C
case temperature range (θ
JC
= 25°C/W).
Note 3:
SSB noise figure measurements performed with a small-signal
noise source, bandpass filter and 2dB matching pad on input, with
bandpass filters on LO, and output.
For more information
www.linear.com/LTC5552
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LTC5552
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Case
Temperature
150
140
130
120
I
CC
(mA)
110
100
90
80
70
60
–40 –20
V
CC
= 3.6V
V
CC
= 3.3V
V
CC
= 3.0V
0
20 40 60 80 100 120
CASE TEMPERATURE (°C)
5552 G01
EN = high, test circuit shown in Figure 1.
Supply Current vs V
CC
150
140
130
120
I
CC
(mA)
110
100
90
80
70
60
3
3.1
3.2
3.3
3.4
SUPPLY VOLTAGE (V)
105°C
85°C
25°C
–40°C
3.5
3.6
5553 G02
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For more information
www.linear.com/LTC5552
LTC5552
3GHz to 20GHz downmixer application.
V
CC
= 3.3V, EN = high, T
C
= 25°C, P
LO
= 0dBm, P
IF
= –6dBm (–6dBm/tone for two-tone IIP3 tests, Δf = 2MHz), IF = 240MHz, unless
otherwise noted. Test circuit shown in Figure 1.
Conversion Loss and IIP3 vs Case
Temperature (Low Side LO)
26
CONVERSION LOSS (dB), IIP3 (dBm)
24
22
20
18
16
14
12
10
8
6
3
5
7
CONVERSION LOSS
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
105°C
85°C
25°C
–40°C
IIP3
26
T1: TC1–1–13M+
CONVERSION LOSS (dB), IIP3 (dBm)
CONVERSION LOSS (dB), IIP3 (dBm)
24
22
20
18
16
14
12
10
8
6
3
5
7
CONVERSION LOSS
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
LO = 6dBm
LO = 0dBm
LO = –3dBm
LO = –6dBm
IIP3
T1: TC1–1–13M+
TYPICAL PERFORMANCE CHARACTERISTICS
Conversion Loss and IIP3 vs LO
Power (Low Side LO)
26
24
22
20
18
16
14
12
10
8
6
Conversion Loss and IIP3 vs
Supply Voltage (Low Side LO)
T1: TC1–1–13M+
IIP3
V
CC
= 3.6V
V
CC
= 3.3V
V
CC
= 3.0V
CONVERSION LOSS
3
5
7
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
5552 G03
5552 G04
5552 G05
Conversion Loss and IIP3 vs Case
Temperature (High Side LO)
26
CONVERSION LOSS (dB), IIP3 (dBm)
24
22
20
18
16
14
12
10
8
6
3
5
7
CONVERSION LOSS
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
105°C
85°C
25°C
–40°C
IIP3
T1: TC1–1–13M+
CONVERSION LOSS (dB), IIP3 (dBm)
26
24
22
20
18
16
14
12
10
8
6
Conversion Loss and IIP3 vs LO
Power (High Side LO)
T1: TC1–1–13M+
CONVERSION LOSS (dB), IIP3 (dBm)
26
24
22
20
18
16
14
12
10
8
6
Conversion Loss and IIP3 vs
Supply Voltage (High Side LO)
T1: TC1–1–13M+
IIP3
IIP3
LO = 6dBm
LO = 0dBm
LO = –3dBm
LO = –6dBm
V
CC
= 3.6V
V
CC
= 3.3V
V
CC
= 3.0V
CONVERSION LOSS
3
5
7
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
CONVERSION LOSS
3
5
7
9 11 13 15 17
RF FREQUENCY (GHz)
19
21
5552 G06
5552 G07
5552 G08
Conversion Loss and IIP3 vs Case
Temperature (Low Side LO)
26
CONVERSION LOSS (dB), IIP3 (dBm)
24
22
20
18
16
14
12
10
8
6
5
7
9
CONVERSION LOSS
105°C
85°C
25°C
–40°C
IIP3
CONVERSION LOSS (dB), IIP3 (dBm)
T1: TCM1–83X+
IF = 3.89GHz
28
26
24
22
20
18
16
14
12
10
8
Conversion Loss and IIP3 vs LO
Power (Low Side LO)
CONVERSION LOSS (dB), IIP3 (dBm)
T1: TCM1–83X+
IF = 3.89GHz
IIP3
28
26
24
22
20
18
16
14
12
10
8
Conversion Loss and IIP3 vs
Supply Voltage (Low Side LO)
T1: TCM1–83X+
IF = 3.89GHz
IIP3
LO = 6dBm
LO = 0dBm
LO =
–6dBm
V
CC
= 3.6V
V
CC
= 3.3V
V
CC
= 3.0V
CONVERSION LOSS
5
7
9
11 13 15 17
RF FREQUENCY (GHz)
19
21
CONVERSION LOSS
5
7
9
11 13 15 17
RF FREQUENCY (GHz)
19
21
11 13 15 17
RF FREQUENCY (GHz)
19
21
5552 G09
5552 G10
5552 G11
For more information
www.linear.com/LTC5552
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