LTC5542IUH#PBF Linear Technology, LTC5542IUH#PBF Datasheet

IC, DOWN CONVERTING MIXER 2.7GHZ, QFN-20

LTC5542IUH#PBF

Manufacturer Part Number
LTC5542IUH#PBF
Description
IC, DOWN CONVERTING MIXER 2.7GHZ, QFN-20
Manufacturer
Linear Technology
Datasheet

Specifications of LTC5542IUH#PBF

Frequency Range
1.6GHz To 2.7GHz
Supply Voltage Range
3.3V To 5V
Rf Ic Case Style
QFN
No. Of Pins
20
Operating Temperature Range
-40°C To +85°C
Rf Type
CDMA, GSM, TD-SCDMA, WCDMA
Operating Supply Voltage
3.3V
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC5542IUH#PBFLTC5542IUH
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC5542IUH#PBFLTC5542IUH
Manufacturer:
LTMEAR
Quantity:
20 000
Company:
Part Number:
LTC5542IUH#PBF
Manufacturer:
Linear Technology
Quantity:
135
Company:
Part Number:
LTC5542IUH#PBF
Manufacturer:
LT
Quantity:
429
Company:
Part Number:
LTC5542IUH#PBFLTC5542IUH#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
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APPLICATIONS
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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.
TYPICAL APPLICATION
2300MHz
FEATURES
2400MHz
Conversion Gain: 8dB at 2.4GHz
IIP3: 26.8dBm at 2.4GHz
Noise Figure: 9.9dB at 2.4GHz
17.3dB NF Under +5dBm Blocking
High Input P1dB
3.3V Supply, 660mW Power Consumption
Shutdown Pin
50Ω Single-Ended RF and LO Inputs
LO Inputs 50Ω Matched when Shutdown
High Isolation LO Switch
0dBm LO Drive Level
High LO-RF and LO-IF Isolation
Small Solution Size
20-Lead (5mm × 5mm) QFN package
Wireless Infrastructure Receivers
(LTE, W-CDMA. TD-SCDMA, WiMAX, GSM1800)
Point-to-Point Microwave Links
High Dynamic Range Downmixer Applications
3.3V or 5V
TO
RF
V
CCIF
LNA
1μF
IMAGE
BPF
(0V/3.3V)
0.7pF
SHDN
V
22pF
22pF
CC
3.3V
150nH
RF
SHDN
Wideband Receiver
1μF
V
IF
CC2
+
150nH
1nF
BIAS
IF
IF
1nF
22pF
V
CC1
LTC5542
LO
190MHz
SAW
V
CC3
LO SELECT
(0V/3.3V)
AMP
IF
LOSEL
LO2
LO1
190MHz
4.7pF
4.7pF
BPF
FREQUENCY-HOPPING
DESCRIPTION
The LTC
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
ALTERNATE LO FOR
2160MHz
SYNTH 2
SYNTH 1
LO
LTC5540
LTC5541
LTC5542
LTC5543
PART#
ADC
®
Downconverting Mixer
5542 is part of a family of high dynamic range, high
5542 TA01
High Dynamic Range
11.0
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
1.6GHz to 2.7GHz
140
600MHz –1.3GHz
1.6GHz – 2.7GHz
1.3GHz – 2.3GHz
Wideband Conversion Gain, IIP3
RF = 2350 ±50MHz
LO = 2160MHz
P
TEST CIRCUIT IN FIGURE 1
G
2.3GHz – 4GHz
and NF vs IF Output Frequency
LO
C
150
RF RANGE
= 0dBm
160 170 180
IF OUTPUT FREQUENCY (MHz)
±30MHz
190 200 210 220
LTC5542
700MHz – 1.2GHz
1.7GHz – 2.5GHz
1.4GHz – 2.0GHz
2.4GHz – 3.6GHz
LO RANGE
230 240
5542 TA01a
IIP3
NF
28
26
24
22
20
18
16
14
12
10
8
1
5542f

Related parts for LTC5542IUH#PBF

LTC5542IUH#PBF Summary of contents

Page 1

... 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. TYPICAL APPLICATION Wideband Receiver 1nF ...

Page 2

... J ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC5542IUH#PBF LTC5542IUH#TRPBF 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: For more information on tape and reel specifi ...

Page 3

AC ELECTRICAL CHARACTERISTICS P = –3dBm (Δf = 2MHz for two-tone IIP3 tests),unless otherwise noted. Test circuit shown in Figure 1. (Notes Low-Side LO Downmixer Application 1900 to 2700MHz 190MHz, f PARAMETER ...

Page 4

LTC5542 DC ELECTRICAL CHARACTERISTICS noted. Test circuit shown in Figure 1. (Note 2) PARAMETER Power Supply Requirements ( CCIF V Supply Voltage (Pins 6, 8 and 14 Supply Voltage (Pins 18 and 19) CCIF ...

Page 5

TYPICAL AC PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V, SHDN = Low CCIF 190MHz, unless otherwise noted. Test circuit shown in Figure 1. Conversion Gain, IIP3 and Frequency 28 IIP3 26 ...

Page 6

LTC5542 TYPICAL AC PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V, SHDN = Low CCIF 190MHz, unless otherwise noted. Test circuit shown in Figure 1. 2-Tone IF Output Power, IM3 and IM5 vs RF Input ...

Page 7

TYPICAL AC PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V, SHDN = Low CCIF 190MHz, unless otherwise noted. Test circuit shown in Figure 1. Conversion Gain, IIP3 and Frequency 27 IIP3 25 ...

Page 8

LTC5542 PIN FUNCTIONS NC (Pin 1): This pin is not connected internally. It can be left fl oating, connected to ground (Pin 2): Single-Ended Input for the RF Signal. This pin is internally connected to the ...

Page 9

BLOCK DIAGRAM TEST CIRCUIT 4:1 T1 C10 CCIF 3.1V TO 5.3V 100mA IFBIAS 50Ω C11 LTC5542 GND SHDN 5 ...

Page 10

LTC5542 APPLICATIONS INFORMATION Introduction The LTC5542 consists of a high linearity passive double- balanced mixer core, IF buffer amplifi er, high speed single- pole double-throw (SPDT) LO switch, LO buffer amplifi er and bias/shutdown circuits. See Block Diagram section for ...

Page 11

APPLICATIONS INFORMATION The RF input impedance and input refl ection coeffi cient, versus RF frequency, is listed in Table 1. The reference plane for this data is pin 2 of the IC, with no external matching, and the LO is ...

Page 12

LTC5542 APPLICATIONS INFORMATION The nominal LO input level is 0dBm although the limiting amplifi ers will deliver excellent performance over a ±6dB input power range. LO input power greater than 6dBm may cause conduction of the internal ESD diodes. Series ...

Page 13

APPLICATIONS INFORMATION Bandpass IF Matching The IF output can be matched for IF frequencies as low as 90MHz or as high as 500MHz using the bandpass IF matching shown in Figure 1 and Figure 7. L1 and L2 resonate with ...

Page 14

LTC5542 APPLICATIONS INFORMATION Table 5. Performance Comparison with V (RF = 2400MHz, Low-Side LO 190MHz P1dB CCIF C V (mA) (dB) (dBm) CCIF 3.3V 100 8.0 11.3 5V 103 7.9 14.7 The IFBIAS pin (pin 20) ...

Page 15

... ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. UH Package 20-Lead Plastic QFN (5mm × ...

Page 16

... SNR, 78dB SFDR, 740mW Power Consumption www.linear.com ● Wideband Conversion Gain, IIP3 and 27 0 IIP3 1950 ±60MHz 23 – 2040MHz P = 0dBm 3.3V CC CCIF 19 – 25° – RETURN LOSS 11 – – 100110 120130140150 IF OUTPUT FREQUENCY (MHz) 5542 TA03 LT 0310 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2010 5542f ...

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