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LTC5542IUH#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC5542
1
5542f
TYPICAL APPLICATION
DESCRIPTION
1.6GHz to 2.7GHz
High Dynamic Range
Downconverting Mixer
The LTC
®
5542 is part of a family of high dynamic range, high
gain, passive downconverting mixers covering the 600MHz
to 4GHz frequency range. The LTC5542 is optimized for
1.6GHz to 2.7GHz RF applications. The LO frequency
must fall within the 1.7GHz to 2.5GHz range for optimum
performance. A typical application is a LTE or WiMAX receiver
with a 2.3GHz to 2.7GHz RF input and low-side LO.
The LTC5542 is designed for 3.3V operation, however; the
IF amplifi er can be powered by 5V for the highest P1dB.
An integrated SPDT LO switch with fast switching accepts
two active LO signals, while providing high isolation.
The LTC5542’s high conversion gain and high dynamic
range enable the use of lossy IF fi lters in high-selectivity
receiver designs, while minimizing the total solution cost,
board space and system-level variation.
High Dynamic Range Downconverting Mixer Family
PART# RF RANGE LO RANGE
LTC5540 600MHz –1.3GHz 700MHz – 1.2GHz
LTC5541 1.3GHz – 2.3GHz 1.4GHz – 2.0GHz
LTC5542 1.6GHz – 2.7GHz 1.7GHz – 2.5GHz
LTC5543 2.3GHz – 4GHz 2.4GHz – 3.6GHz
FEATURES
APPLICATIONS
n
Conversion Gain: 8dB at 2.4GHz
n
IIP3: 26.8dBm at 2.4GHz
n
Noise Figure: 9.9dB at 2.4GHz
n
17.3dB NF Under +5dBm Blocking
n
High Input P1dB
n
3.3V Supply, 660mW Power Consumption
n
Shutdown Pin
n
50Ω Single-Ended RF and LO Inputs
n
LO Inputs 50Ω Matched when Shutdown
n
High Isolation LO Switch
n
0dBm LO Drive Level
n
High LO-RF and LO-IF Isolation
n
Small Solution Size
n
20-Lead (5mm × 5mm) QFN package
n
Wireless Infrastructure Receivers
(LTE, W-CDMA. TD-SCDMA, WiMAX, GSM1800)
n
Point-to-Point Microwave Links
n
High Dynamic Range Downmixer Applications
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.
IF
AMP
ADC
IF
RF
2300MHz
TO
2400MHz
LNA
BIAS
SYNTH 2
SYNTH 1
V
CCIF
3.3V or 5V
22pF
22pF
0.7pF
1µF
150nH 150nH
1nF
1nF
190MHz
SAW
190MHz
BPF
IMAGE
BPF
RF
SHDN
22pF
SHDN
(0V/3.3V)
LTC5542
V
CC2
V
CC
3.3V
V
CC1
V
CC3
LOSEL
LO SELECT
(0V/3.3V)
LO
2160MHz
ALTERNATE LO FOR
FREQUENCY-HOPPING
4.7pF
4.7pF
LO1
LO2
IF
+
IF
–
5542 TA01
1µF
LO
Wideband Receiver
Wideband Conversion Gain, IIP3
and NF vs IF Output Frequency
IF OUTPUT FREQUENCY (MHz)
140
6.0
G
C
(dB)
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
11.0
8
IIP3 (dBm), SSB NF (dB)
26
24
22
20
18
16
14
12
10
28
150 230 240160 170 180
5542 TA01a
190 200 210 220
NF
RF = 2350 ±50MHz
LO = 2160MHz
P
LO
= 0dBm
TEST CIRCUIT IN FIGURE 1
±30MHz
IIP3
G
C
LTC5542
2
5542f
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
Mixer Supply Voltage (V
CC1
, V
CC2
)...........................3.8V
LO Switch Supply Voltage (V
CC3
).............................3.8V
IF Supply Voltage (IF
+
, IF
–
) ......................................5.5V
Shutdown Voltage (SHDN) ................–0.3V to V
CC
+0.3V
LO Select Voltage (LOSEL) ................–0.3V to V
CC
+0.3V
LO1, LO2 Input Power (1GHz to 3GHz) ...................9dBm
LO1, LO2 Input DC Voltage ....................................±0.5V
RF Input Power (1GHz to 3GHz) ...........................15dBm
RF Input DC Voltage ............................................... ±0.1V
Operating Temperature Range .................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Junction Temperature (T
J
) .................................... 150°C
(Note 1)
20 19 18 17 16
6 7 8
TOP VIEW
21
GND
UH PACKAGE
20-LEAD (5mm s 5mm) PLASTIC QFN
9 10
5
4
3
2
1
11
12
13
14
15
NC
RF
CT
GND
SHDN
LO2
V
CC3
GND
GND
LO1
IFBIAS
IF
+
IF
–
GND
IFGND
V
CC2
LOBIAS
V
CC1
LOSEL
GND
T
JMAX
= 150°C, θ
JA
= 34°C/W, θ
JC
= 3°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC5542IUH#PBF LTC5542IUH#TRPBF 5542 20-Lead (5mm x 5mm) Plastic QFN –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi
cations, go to: http://www.linear.com/tapeandreel/
AC ELECTRICAL CHARACTERISTICS
V
CC
= 3.3V, V
CCIF
= 3.3V, SHDN = Low, T
A
= 25°C, P
LO
= 0dBm,
unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
LO Input Frequency Range 1700 to 2500 MHz
RF Input Frequency Range Low-Side LO
High-Side LO
1900 to 2700
1600 to 2300
MHz
MHz
IF Output Frequency Range Requires External Matching 5 to 500 MHz
RF Input Return Loss Z
O
= 50, 1600MHz to 2700MHz >12 dB
LO Input Return Loss Z
O
= 50, 1700MHz to 2500MHz >12 dB
IF Output Return Loss Requires External Matching >12 dB
LO Input Power f
LO
= 1700MHz to 2500MHz –4 0 6 dBm
LO to RF Leakage f
LO
= 1700MHz to 2500MHz <–32 dBm
LO to IF Leakage f
LO
= 1700MHz to 2500MHz <–40 dBm
LO Switch Isolation LO1 Selected, 1700MHz < f
LO
< 2500MHz
LO2 Selected, 1700MHz < f
LO
< 2500MHz
49
52
dB
dB
RF to LO Isolation f
RF
= 1600MHz to 2700MHz >49 dB
RF to IF Isolation f
RF
= 1600MHz to 2700MHz >35 dB
LTC5542
3
5542f
Low-Side LO Downmixer Application: RF = 1900 to 2700MHz, IF = 190MHz, f
LO
= f
RF
–f
IF
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain RF = 2150MHz
RF = 2400MHz
RF = 2650MHz
6.5
8.5
8.0
7.4
dB
Conversion Gain Flatness RF = 2350 ±30MHz, LO = 2160MHz, IF=190 ±30MHz ±0.15 dB
Conversion Gain vs Temperature T
A
= –40ºC to +85ºC, RF = 2400MHz –0.006 dB/°C
Input 3
rd
Order Intercept RF = 2150MHz
RF = 2400MHz
RF = 2650MHz
24.0
27.2
26.8
25.3
dBm
SSB Noise Figure RF = 2150MHz
RF = 2400MHz
RF = 2650MHz
9.9
9.9
10.2
dB
SSB Noise Figure Under Blocking f
RF
= 2400MHz, f
LO
= 2210MHz,
f
BLOCK
= 2500MHz, P
BLOCK
= 5dBm
17.3 dB
2RF – 2LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/2)
f
RF
= 2305MHz at –10dBm, f
LO
= 2210MHz, f
IF
= 190MHz –62 dBc
3RF – 3LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/3)
f
RF
= 2273.33MHz at –10dBm, f
LO
= 2210MHz, f
IF
= 190MHz –73 dBc
Input 1dB Compression RF = 2400MHz, V
CCIF
= 3.3V
RF = 2400MHz, V
CCIF
= 5V
11.3
14.7
dBm
AC ELECTRICAL CHARACTERISTICS
V
CC
= 3.3V, V
CCIF
= 3.3V, SHDN = Low, T
A
= 25°C, P
LO
= 0dBm,
P
RF
= –3dBm (Δf = 2MHz for two-tone IIP3 tests),unless otherwise noted. Test circuit shown in Figure 1. (Notes 2, 3, 4)
High-Side LO Downmixer Application: RF = 1600-2300MHz, IF = 190MHz, f
LO
= f
RF
+f
IF
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
6.5
8.8
8.5
8.0
dB
Conversion Gain Flatness RF = 1950MHz ±30MHz, LO = 2140MHz, IF = 190 ±30MHz ±0.20 dB
Conversion Gain vs Temperature T
A
= –40°C to 85°C, RF = 1950MHz –0.006 dB/°C
Input 3rd Order Intercept RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
23.0
25.1
25.2
24.6
dBm
SSB Noise Figure RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
9.0
9.4
10.3
11.0 dB
SSB Noise Figure Under Blocking f
RF
= 1950MHz, f
LO
= 2140MHz, f
IF
= 190MHz
f
BLOCK
= 1850MHz, P
BLOCK
= 5dBm
17.5 dB
2LO – 2RF Output Spurious Product
(f
RF
= f
LO
– f
IF/2
)
f
RF
= 2045MHz at –10dBm, f
LO
= 2140MHz
f
IF
= 190MHz
–67 dBc
3LO – 3RF Output Spurious Product
(f
RF
= f
LO
– f
IF/3
)
f
RF
= 2076.67MHz at –10dBm, f
LO
= 2140MHz
f
IF
= 190MHz
–73 dBc
Input 1dB Compression RF = 1950MHz, V
CCIF
= 3.3V
RF = 1950MHz, V
CCIF
= 5V
11.0
14.4
dBm
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC5542IUH#TRPBF

Mfr. #:
Buy LTC5542IUH#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
RF Mixer 1.6GHz - 2.7GHz High Dynamic Range Downconverting Mixer
Lifecycle:
New from this manufacturer.
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