LT5520EUF Linear Technology, LT5520EUF Datasheet

IC MIXER UPCONV 1.3-2.3GHZ 16QFN

LT5520EUF

Manufacturer Part Number
LT5520EUF
Description
IC MIXER UPCONV 1.3-2.3GHZ 16QFN
Manufacturer
Linear Technology
Series
LT5520r
Datasheet

Specifications of LT5520EUF

Rf Type
General Purpose
Frequency
1.3GHz ~ 2.3GHz
Number Of Mixers
1
Gain
-1dB
Noise Figure
15dB
Secondary Attributes
Up Converter
Current - Supply
70mA
Voltage - Supply
4.5 V ~ 5.25 V
Package / Case
16-WQFN Exposed Pad
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT5520EUF
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT5520EUF#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT5520EUF#TR
Manufacturer:
LINEAR-PB FREE
Quantity:
3 756
Part Number:
LT5520EUF#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
INPUT
5V
DC
Wide RF Output Frequency Range: 1.3GHz
to 2.3GHz
15.9dBm Typical Input IP3 at 1.9GHz
On-Chip RF Output Transformer
No External LO or RF Matching Required
Single-Ended LO and RF Operation
Integrated LO Buffer: –5dBm Drive Level
Low LO to RF Leakage: – 41dBm Typical
Wide IF Frequency Range: DC to 400MHz
Enable Function with Low Off-State Leakage Current
Single 5V Supply
Small 16-Lead QFN Plastic Package
Wireless Infrastructure
Cable Downlink Infrastructure
Point-to-Point Data Communications
High Linearity Frequency Conversion
IF
BPF
1 F
LO INPUT
–5dBm
4:1
220pF
220pF
1000pF
15pF
(OPTIONAL)
U
100
100
Figure 1. Frequency Conversion in Wireless Infrastructure Transmitter
IF
IF
+
EN
BIAS
5pF
U
LO
+
V
CC1
85
V
CC2
LO
5pF
V
39nH
CC3
LT5520
5520 F01
10pF
GND
RF
RF
+
BPF
DESCRIPTIO
The LT
requirements of wireless and cable infrastructure trans-
mission applications. A high-speed, internally matched,
LO amplifier drives a double-balanced mixer core, allow-
ing the use of a low power, single-ended LO source. An RF
output transformer is integrated, thus eliminating the
need for external matching components at the RF output,
while reducing system cost, component count, board area
and system-level variations. The IF port can be easily
matched to a broad range of frequencies for use in many
different applications.
The LT5520 mixer delivers 15.9dBm typical input 3rd
order intercept point at 1.9GHz with IF input signal levels
of –10dBm. The input 1dB compression point is typically
4dBm. The IC requires only a single 5V supply.
, LTC and LT are registered trademarks of Linear Technology Corporation.
PA
®
5520 mixer is designed to meet the high linearity
RF
OUTPUT
Upconverting Mixer
U
1.3GHz to 2.3GHz
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
0
–16
RF Output Power and Output IM3 vs
IF Input Power (Two Input Tones)
High Linearity
–12
IF INPUT POWER (dBm/TONE)
P
OUT
–8
IM3
–4
LT5520
P
f
f
f
f
T
LO
IF1
IF2
RF
LO
A
= 25 C
= 1900MHz
= 1760MHz
= 140MHz
= 141MHz
= –5dBm
0
5520 • F01b
1
5520f
4

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LT5520EUF Summary of contents

Page 1

... The LT5520 mixer delivers 15.9dBm typical input 3rd order intercept point at 1.9GHz with IF input signal levels of –10dBm. The input 1dB compression point is typically 4dBm. The IC requires only a single 5V supply. , LTC and LT are registered trademarks of Linear Technology Corporation. 39nH CC1 ...

Page 2

... External Matching –10dBm/Tone 1MHz –10dBm, Single-Tone Internally Biased Single Side Band , EN = High , (Note 3), unless otherwise noted CONDITIONS ENABLE ORDER PART TOP VIEW NUMBER LT5520EUF 12 GND + – GND PART MARKING UF PACKAGE 5520 = 125 C/W JA MIN TYP MAX DC to 400 900 to 2700 ...

Page 3

DC ELECTRICAL CHARACTERISTICS (Test Circuit Shown in Figure PARAMETER Enable = High (On) Enable = Low (Off) Power Supply Requirements ( Supply Voltage Supply Current Shutdown Current Note 1: Absolute Maximum Ratings are ...

Page 4

LT5520 W U TYPICAL PERFOR A CE CHARACTERISTICS High , input = 140MHz at –10dBm, LO input = 1.76GHz at –5dBm, RF output measured at 1900MHz ...

Page 5

CTIO S GND (Pins 12, 13, 16): Internal Grounds. These pins are used to improve isolation and are not intended grounds for the IC. Connect these pins to ...

Page 6

LT5520 TEST CIRCUIT LO IN 1760MHz 16 15 – GND GND 140MHz LT5520 – GND ...

Page 7

U U APPLICATIO S I FOR ATIO 100 0.1% C1 18mA 18mA C2 100 LT5520 0.1% Figure 3. IF Input with External Matching Table 1 lists the differential IF input impedance and ...

Page 8

LT5520 U U APPLICATIO S I FOR ATIO The impedance data for the RF output, listed in Table 3, can be used to develop matching networks for different load impedances. Table 3. Single-Ended RF Output Impedance Frequency Input (MHz) Impedance ...

Page 9

U U APPLICATIO S I FOR ATIO Figures 6-8 illustrate the performance versus tuned IF input frequency with both high side and low side LO injection. Figure 6 shows the measured conversion gain and IIP3. The noise figure is plotted ...

Page 10

LT5520 U U APPLICATIO S I FOR ATIO (10a) Top Layer Silkscreen Figure 10. Evaluation Board Layout (10b) Top Layer Metal 5520f ...

Page 11

... RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... Modulation Bandwidth 1.8V to 5.25V Supply, 40MHz to 500MHz IF, –4dB to 57dB Linear Power Gain, 8.8MHz Baseband Bandwidth 1.8V to 5.25V Supply, 40MHz to 500MHz IF, –7dB to 56dB Linear Power Gain www.linear.com Offset Control, Adjustable Gain and Offset LT/TP 1103 1K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2003 5520f ...

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