LTC5510
1MHz to 6GHz Wideband
High Linearity Active Mixer
FEATURES
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DESCRIPTION
The
LTC
®
5510
is a high linearity mixer optimized for applica-
tions requiring very wide input bandwidth, low distortion,
and low LO leakage. The chip includes a double-balanced
active mixer with an input buffer and a high speed LO ampli-
fier. The input is optimized for use with 1:1 transmission-
line baluns, allowing very wideband impedance matching.
The mixer can be used for both up- and down-conversion
and can be used in wideband systems.
The LO can be driven differentially or single-ended and
requires only 0dBm of LO power to achieve excellent distor-
tion and noise performance, while also reducing external
drive circuit requirements. The LTC5510 offers low LO
leakage, greatly reducing the need for output filtering to
meet LO suppression requirements.
The LTC5510 is optimized for 5V but can also be used
with a 3.3V supply with slightly reduced performance.
The shutdown function allows the part to be disabled for
further power savings.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Input Frequency Range to 6GHz
50Ω Matched Input from 30MHz to >3GHz
Capable of Up- or Down-Conversion
OIP3: 27dBm at f
OUT
= 1575MHz
1.5dB Conversion Gain
Noise Figure: 11.6dB at f
OUT
= 1575MHz
High Input P1dB: 11dBm at 5V
5V or 3.3V Supply at 105mA
Shutdown Control
LO Input Impedance Always Matched
0dBm LO Drive Level
0n-Chip Temperature Monitor
–40°C to 105°C Operation (T
C
)
16-Lead (4mm
×
4mm) QFN Package
APPLICATIONS
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Wideband Receivers/Transmitters
Cable Downlink Infrastructure
HF/VHF/UHF Mixer
Wireless Infrastructure
TYPICAL APPLICATION
30MHz to 4GHz Up/Down Mixer for Wideband Receiver
LO
50
TEMPERATURE
MONITOR
IN
30MHz TO
4GHz
50
TCM1-43X+
1:1
30
0.1µF
TEMP
LO+
LO–
0.1µF
GAIN (dB), IIP3 (dBm), NF (dB)
BD1222J50200AHF
4:1
6.8nH
6.8pF
OUT
1575MHz
50
25
20
Conversion Gain, IIP3 and NF
vs Input Frequency
IIP3
HS LO
LS LO
0.1µF
LTC5510
OUT+
OUT–
BIAS
LGND
EN V
CC1
V
CC2
I
ADJ
IN+
0.6pF
0.1µF
IN–
15
10
5
NF
f
OUT
= 1575MHz
P
IN
= –10dBm
P
LO
= 0dBm
T
C
= 25°C
1000
2000
3000
4000
5510 TA01a
6.8nH
4.75k
EN
10nF
1µF
10nF
5V
5510 TA01
G
C
0
0
INPUT FREQUENCY (MHz)
5510fa
For more information
www.linear.com/LTC5510
1
LTC5510
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
TOP VIEW
GND
12 GND
17
11 OUT
+
10 OUT
–
9
5
EN
6
V
CC1
7
V
CC2
8
I
ADJ
GND
LO
+
LO
–
TP
TEMP 1
IN
+
2
IN
–
3
LGND 4
16 15 14 13
Supply Voltage (V
CC1
, V
CC2
, OUT
+
, OUT
–
) ................6.0V
Enable Voltage (EN) .........................–0.3V to V
CC
+ 0.3V
Current Adjust Voltage (I
ADJ
) .................... –0.3V to 2.7V
LO Input Power (1MHz to 6GHz) ........................ +10dBm
LO Differential DC Voltage .......................................1.5V
LO
+
, LO
–
Input DC Voltage ........................... –0.3V to 3V
IN
+
, IN
–
Input Power (1MHz to 6GHz) ................ +15dBm
IN
+
, IN
–
Input DC Voltage ......................... –0.3V to 2.4V
Temp Monitor Input Current (TEMP)......................10mA
Operating Temperature Range (T
C
) ........ –40°C to 105°C
Storage Temperature Range .................. –65°C to 150°C
Junction Temperature (T
J
) .................................... 150°C
UF PACKAGE
16-LEAD (4mm
×
4mm) PLASTIC QFN
T
JMAX
= 150°C,
θ
JC
= 6°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC5510IUF#PBF
TAPE AND REEL
LTC5510IUF#TRPBF
PART MARKING
5510
PACKAGE DESCRIPTION
16-Lead (4mm
×
4mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 105°C
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/
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. EN = High, P
LO
= 0dBm. Test circuit shown in Figure 1. (Notes 2, 3, 4)
PARAMETER
Input Frequency Range
LO Input Frequency Range
Output Frequency Range
Input Return Loss
LO Input Return Loss
Output Impedance
LO Input Power
Requires External Matching
Z
O
= 50Ω, 30MHz to 3GHz
Z
O
= 50Ω, 1MHz to 5GHz
Differential at 1500MHz
f
LO
= 1MHz to 5GHz
–6
0.5
CONDITIONS
Requires External Matching
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AC ELECTRICAL CHARACTERISTICS
MIN
TYP
1 to 6000
1 to 6500
1 to 6000
>11
>10
201Ω||0.6pF
0
1.5
1.4
1.1
1.2
–0.007
MAX
UNITS
MHz
MHz
MHz
dB
dB
R||C
6
dBm
dB
dB
dB
dB
dB/°C
5V Wideband Up/Downmixer Application: f
IN
= 30MHz to 3000MHz, f
OUT
= 1575MHz, V
CC
= 5V, R1 = 4.75kΩ
Conversion Gain
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
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Conversion Gain vs Temperature
T
C
= –40°C to 105°C, f
IN
= 900MHz
5510fa
2
For more information
www.linear.com/LTC5510
LTC5510
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. EN = High, P
LO
= 0dBm, P
IN
= –10dBm (–10dBm/tone for two-tone tests),
unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
PARAMETER
Two-Tone Output 3rd Order Intercept
(Δf = 2MHz)
CONDITIONS
MIN
TYP
27.8
25.0
26.0
24.5
11.6
12.1
11.6
11.8
20.3
<–50
<–40
<–33
>40
>22
>55
11.0
12.2
11.5
11.6
1.5
1.4
1.1
1.2
–0.006
24.2
23.3
23.9
22.3
11.2
12.2
11.4
11.4
20.8
<–50
<–40
<–33
>40
>22
>55
8.9
10.7
10.1
9.6
MAX
UNITS
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dBm
dBm
dBm
dB
dB
dB
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB/°C
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dBm
dBm
dBm
dB
dB
dB
dBm
dBm
dBm
dBm
24.0
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
SSB Noise Figure
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
SSB Noise Figure Under Blocking
f
IN
=900MHz, f
LO
= 2475MHz,
f
BLOCK
= 800MHz, P
BLOCK
= +5dBm
LO-IN Leakage
f
LO
= 20MHz to 3300MHz
LO-OUT Leakage
f
LO
= 20MHz to 1000MHz
f
LO
= 1000MHz to 3300MHz
IN-OUT Isolation
f
IN
= 20MHz to 1150MHz
f
IN
= 1150MHz to 3000MHz
IN-LO Isolation
f
IN
= 30MHz to 3000MHz
Input 1dB Compression
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
3.3V Wideband Up/Downmixer Application: f
IN
= 30MHz to 3000MHz, f
OUT
= 1575MHz, V
CC
= 3.3V, R1 = 1.8kΩ
Conversion Gain
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
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Conversion Gain vs Temperature
T
C
= –40°C to 105°C, f
IN
= 900MHz
Two-Tone Output 3rd Order Intercept
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
(Δf = 2MHz)
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
SSB Noise Figure
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
SSB Noise Figure Under Blocking
f
IN
= 900MHz, f
LO
= 2475MHz,
f
BLOCK
= 800MHz P
BLOCK
= +5dBm
LO-IN Leakage
f
LO
= 20MHz to 3300MHz
LO-OUT Leakage
f
LO
= 20MHz to 1000MHz
f
LO
= 1000MHz to 3300MHz
IN-OUT Isolation
f
IN
= 20MHz to 1150MHz
f
IN
= 1150MHz to 3000MHz
IN-LO Isolation
f
IN
= 30MHz to 3000MHz
Input 1dB Compression
f
IN
= 190MHz, f
LO
= 1765MHz, Upmixer
f
IN
= 900MHz, f
LO
= 2475MHz, Upmixer
f
IN
= 2150MHz, f
LO
= 575MHz, Downmixer
f
IN
= 2600MHz, f
LO
= 1025MHz, Downmixer
AC ELECTRICAL CHARACTERISTICS
14.5
5510fa
For more information
www.linear.com/LTC5510
3
LTC5510
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. EN = High, P
LO
= 0dBm, P
IN
= –10dBm (–10dBm/tone for two-tone tests),
unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
PARAMETER
Conversion Gain
CONDITIONS
f
IN
= 190MHz
f
IN
= 450MHz
f
IN
= 900MHz
T
C
= –40°C to 105°C, f
IN
= 190MHz
f
IN
= 190MHz
f
IN
= 450MHz
f
IN
= 900MHz
f
IN
= 190MHz
f
IN
= 450MHz
f
IN
= 900MHz
f
IN
= 800MHz, f
LO
= 3040MHz, f
OUT
= 2140MHz
f
LO
= 2100MHz to 3500MHz
f
LO
= 2100MHz to 3500MHz
f
IN
= 30MHz to 1100MHz
f
IN
= 30MHz to 1100MHz
f
IN
= 190MHz
f
IN
= 450MHz
f
IN
= 900MHz
f
IN
= 140MHz
f
IN
= 456MHz
f
IN
= 900MHz
T
C
= –40°C to 105°C, f
IN
= 456MHz
f
IN
= 140MHz
f
IN
= 456MHz
f
IN
= 900MHz
f
IN
= 140MHz
f
IN
= 456MHz
f
IN
= 900MHz
f
IN
= 900MHz, f
LO
= 944MHz,
f
BLOCK
= 800MHz, P
BLOCK
= +5dBm
f
IN1
= 477MHz, f
IN2
= 435MHz, f
LO
= 500MHz
f
IN
= 478MHz at –6dBm, f
LO
= 500MHz, f
OUT
= 44MHz
f
IN
= 485.33MHz at –6dBm, f
LO
= 500MHz,
f
OUT
= 44.01MHz
f
LO
= 50MHz to 1200MHz
f
LO
= 50MHz to 1200MHz
f
IN
= 50MHz to 1000MHz
f
IN
= 50MHz to 1000MHz
f
IN
= 456MHz
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AC ELECTRICAL CHARACTERISTICS
MIN
TYP
1.1
1.0
1.0
–0.006
25.6
24.6
23.9
12.0
12.2
12.4
–151.4
<–50
<–31
>40
>50
11.5
11.5
11.7
1.9
1.9
1.9
–0.006
27.8
28.5
26.8
10.8
10.9
11.6
20.0
72
–84
–82
<–62
<–31
>23
>62
12.1
MAX
UNITS
dB
dB
dB
dB/°C
dBm
dBm
dBm
dB
dB
dB
dBm/Hz
dBm
dBm
dB
dB
dBm
dBm
dBm
dB
dB
dB
dB/°C
dBm
dBm
dBm
dB
dB
dB
dB
dBm
dBc
dBc
dBm
dBm
dB
dB
dBm
5V Wideband Upmixer Application: f
IN
= 30MHz to 1000MHz, f
OUT
= 2140MHz, f
LO
= f
IN
+ f
OUT
, V
CC
= 5V, R1 = 4.75kΩ
Conversion Gain vs Temperature
Two-Tone Output 3rd Order Intercept
(Δf = 2MHz)
SSB Noise Figure
SSB Noise Floor at P
IN
= +5dBm
LO-IN Leakage
LO-OUT Leakage
IN-OUT Isolation
IN-LO Isolation
Input 1dB Compression
5V VHF/UHF Wideband Downmixer Application: f
IN
= 100MHz to 1000MHz, f
OUT
= 44MHz, f
LO
= f
IN
+ f
OUT
, V
CC
= 5V, R1 = Open
Conversion Gain
Conversion Gain vs Temperature
Two-Tone Input 3rd Order Intercept
(Δf = 2MHz)
SSB Noise Figure
SSB Noise Figure Under Blocking
Two-Tone Input 2nd Order Intercept
(Δf = f
IM2
= 42MHz)
2LO-2RF Output Spurious Product
(f
IN
= f
LO
– f
OUT
/2)
3LO-3RF Output Spurious Product
(f
IN
= f
LO
– f
OUT
/3)
LO-IN Leakage
LO-OUT Leakage
IN-OUT Isolation
IN-LO Isolation
Input 1dB Compression
5510fa
4
For more information
www.linear.com/LTC5510
LTC5510
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. EN = High, P
LO
= 0dBm, P
IN
= –10dBm (–10dBm/tone for two-tone tests),
unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
1.1
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AC ELECTRICAL CHARACTERISTICS
Conversion Gain
Conversion Gain vs Temperature
Two-Tone Output 3rd Order Intercept
(Δf = 2MHz)
SSB Noise Figure
SSB Noise Floor at P
IN
= +5dBm
LO-IN Leakage
LO-OUT Leakage
IN-OUT Isolation
IN-LO Isolation
Input 1dB Compression
f
OUT
= 456MHz
MAX
UNITS
dB
dB/°C
dBm
dB
5V VHF/UHF Upmixer Application: f
IN
= 70MHz, f
OUT
= 100MHz to 1000MHz, f
LO
= f
IN
+ f
OUT
, V
CC
= 5V, R1 = Open, L3 = 220nH
T
C
= –40°C to 105°C, f
OUT
= 456MHz
f
OUT
= 456MHz
f
OUT
= 456MHz
f
IN
= 44MHz, f
LO
= 532MHz, f
OUT
= 462MHz
f
LO
= 100MHz to 1500MHz
f
LO
= 100MHz to 1500MHz
f
IN
= 50MHz to 400MHz
f
IN
= 50MHz to 400MHz
f
OUT
= 456MHz
–0.007
29.0
11.3
–152
<–62
<–39
>43
>70
11.0
dBm/Hz
dBm
dBm
dB
dB
dBm
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
C
= 25°C. V
CC
= 5V, EN = High, unless otherwise noted. Test circuit shown in
Figure 1. (Note 2)
PARAMETER
Power Supply
Supply Voltage (Pins 6, 7, 10, 11)
Supply Current (Pins 6, 7, 10, 11)
5V Supply
3.3V Supply
5V, R1 = Open
5V, R1 = 4.75k
3.3V, R1 = Open
3.3V, R1 = 1.8k
EN = Low
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DC ELECTRICAL CHARACTERISTICS
CONDITIONS
MIN
4.5
3.1
TYP
5
3.3
105
99.6
105
94
1.3
MAX
5.3
3.5
113
UNITS
V
V
mA
mA
mA
mA
mA
V
Total Supply Current – Shutdown
Enable Logic Input (EN)
EN Input High Voltage (On)
EN Input Low Voltage (Off)
EN Input Current
Turn-On Time
Turn-Off Time
Current Adjust Pin (I
ADJ
)
Open Circuit DC Voltage
Short Circuit DC Current
Temperature Monitor Pin (TEMP)
DC Voltage at T
J
= 25°C
Voltage Temperature Coefficient
2.5
1.8
0.5
–20
0.6
0.6
1.8
200
V
μA
μs
μs
V
mA
mV
mV
mV/°C
mV/°C
–0.3V to V
CC
+ 0.3V
EN: Low to High
EN: High to Low
I
ADJ
Shorted to Ground
I
IN
= 10µA
I
IN
= 80µA
I
IN
= 10µA
I
IN
= 80µA
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1.9
697
755
–1.80
–1.61
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 LTC5510 is guaranteed functional over the case operating
temperature range of –40°C to 105°C. (θ
JC
= 6°C/W)
Note 3:
SSB Noise Figure measured with a small-signal noise source,
bandpass filter and 3dB matching pad on the signal input, bandpass filter
and 6dB matching pad on the LO input, and no other RF signals applied.
Note 4:
Specified performance includes all external component and
evaluation PCB losses.
5510fa
For more information
www.linear.com/LTC5510
5
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