LT5522EUF Linear Technology, LT5522EUF Datasheet

IC MIXER DWNCONV HI SIGN 16-QFN

LT5522EUF

Manufacturer Part Number
LT5522EUF
Description
IC MIXER DWNCONV HI SIGN 16-QFN
Manufacturer
Linear Technology
Series
LT5522r
Datasheet

Specifications of LT5522EUF

Rf Type
Cellular, PCS, UMTS
Frequency
400MHz ~ 2.7GHz
Number Of Mixers
1
Gain
-0.2dB
Noise Figure
13.9dB
Secondary Attributes
Down Converter
Current - Supply
68mA
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:
LT5522EUF
Manufacturer:
LTNEAR
Quantity:
20 000
Part Number:
LT5522EUF#PBF
Manufacturer:
LT
Quantity:
3 000
Part Number:
LT5522EUF#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT5522EUF#TRPBF
Manufacturer:
MAXIM
Quantity:
16 341
Part Number:
LT5522EUF#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LT5522EUF#TRPBF
Quantity:
1 100
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
1850MHz
1910MHz
Internal On-Chip RF Input Transformer
50Ω Single-Ended RF and LO Ports
High Input IP3: +25dBm at 900MHz
Low Power Consumption: 280mW Typical
Integrated LO Buffer: Low LO Drive Level
High LO-RF and LO-IF Isolation
Wide RF Frequency Range: 0.4GHz to 2.7GHz*
Very Few External Components
Enable Function
4.5V to 5.25V Supply Voltage Range
16-Lead (4mm × 4mm) QFN Package
Cellular, PCS and UMTS Band Infrastructure
CATV Downlink Infrastructure
2.4GHz ISM
High Linearity Downmixer Applications
TO
LNA
Figure 1. High Signal Level Downmixer for Wireless Infrastructure
+21.5dBm at 1900MHz
U
RF
RF
LT5522
+
EN
CONTROL
BIAS/
V
CC1
LO
LO INPUT
–5dBm
+
U
0.01µF
V
CC2
LO
IF
IF
+
100pF
2.7pF
3.3µF
150nH
150nH
5V
140MHz
(TYP)
DESCRIPTIO
The LT
high linearity downconverter applications including cable
and wireless infrastructure. The IC includes a high speed
differential LO buffer amplifier driving a double-balanced
mixer. The LO buffer is internally matched for wideband,
single-ended operation with no external components.
The RF input port incorporates an integrated RF trans-
former and is internally matched over the 1.2GHz to 2.3GHz
frequency range with no external components. The RF
input match can be shifted down to 400MHz, or up to
2.7GHz, with a single shunt capacitor or inductor, respec-
tively. The high level of integration minimizes the total
solution cost, board space and system-level variation.
The LT5522 delivers high performance and small size
without excessive power consumption.
All other trademarks are the property of their respective owners.
*Operation over a wider frequency range is possible with reduced performance.
Consult factory for information and assistance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
VGA
®
5522 active downconverting mixer is optimized for
Downconverting Mixer
LTC1748
ADC
5522 F01
400MHz to 2.7GHz
U
High Signal Level
NF and LO-RF Leakage vs LO Power
1.9GHz Conversion Gain, IIP3, SSB
12
10
24
22
20
18
16
14
4
2
0
8
6
–11
–9
LO INPUT POWER (dBm)
–7
–5
SSB NF
LO-RF
–3
LT5522
IF = 140MHz
LOW-SIDE LO
T
V
IIP3
A
CC
= 25°C
= 5V
–1
5522 TA01
1
–10
–20
–30
–40
–50
–60
–70
5522fa
1

Related parts for LT5522EUF

LT5522EUF Summary of contents

Page 1

... The LT5522 delivers high performance and small size without excessive power consumption. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *Operation over a wider frequency range is possible with reduced performance. ...

Page 2

... CC 16-LEAD (4mm × 4mm) PLASTIC QFN EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER LT5522EUF Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: Consult LTC Marketing for parts specified with wider operating temperature ranges. ...

Page 3

AC ELECTRICAL CHARACTERISTICS = –7dBm (–7dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz 25° 140MHz, unless otherwise noted. (Notes 2, 3) (Test circuit shown in Figure 2). PARAMETER Conversion Gain Conversion Gain vs Temperature ...

Page 4

LT5522 W U TYPICAL AC PERFOR A CE CHARACTERISTICS = –7dBm (–7dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz 5V High 25° 140MHz, unless otherwise noted. (Test circuit ...

Page 5

W U TYPICAL AC PERFOR A CE CHARACTERISTICS (L3 = 3.9nH 5V High 25° measured at 140MHz, unless otherwise noted. (Test circuit shown in Figure 2). Low Band Conv Gain, IIP3 ...

Page 6

LT5522 W U TYPICAL AC PERFOR A CE CHARACTERISTICS = 1150MHz at –12dBm (–12dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz), LO swept from 1200MHz 5V High 25° 2200MHz, ...

Page 7

W U TYPICAL AC PERFOR A CE CHARACTERISTICS from Pin 5V High 25° measured at 140MHz, unless otherwise noted. (Test circuit shown in Figure 2) Conv Gain, IIP3 and SSB ...

Page 8

LT5522 CTIO S NC (Pins 13, 16): Not Connected Internally. These pins should be grounded on the circuit board for improved and isolation. + – RF ...

Page 9

TEST CIRCUITS LO IN 400MHz TO 2700MHz RF IN 400MHz TO 2700MHz L3 (HIGH (LOW OR BAND) OPTIONAL BAND) SHUNT REACTANCE USED FOR LOW BAND OR HIGH BAND RF MATCH ONLY REF DES VALUE SIZE PART NUMBER C1 0.01µF 0402 ...

Page 10

LT5522 U U APPLICATIO S I FOR ATIO Introduction The LT5522 consists of a high linearity double-balanced mixer, RF buffer amplifier, high speed limiting LO buffer amplifier and bias/enable circuits. The IC has been opti- mized for downconverter applications where ...

Page 11

U U APPLICATIO S I FOR ATIO RF input impedance and S11 versus frequency are shown in Table 1. The listed data is referenced to the RF + the RF pin grounded (no external matching). This infor- mation can be ...

Page 12

LT5522 U U APPLICATIO S I FOR ATIO 0 –5 –10 –15 –20 –25 –30 1E8 1E9 LO FREQUENCY (Hz) Figure 9. LO Input Return Loss Table 2. LO Port Input Impedance vs Frequency FREQUENCY INPUT (MHZ) IMPEDANCE 100 200.5 ...

Page 13

U U APPLICATIO S I FOR ATIO Higher linearity and lower LO-IF leakage can be realized by using the simple, three element lowpass matching net- work shown in Figure 10. Matching elements C4, L1 and L2 form a 400Ω to ...

Page 14

LT5522 U U APPLICATIO S I FOR ATIO C4 L1 4.7pF 100nH + 4.7pF 390nH – 1000pF 100nH V CC Figure 15. Narrowband Bridge IF Balun (240MHz Example) inductor is recommended for L4 to ...

Page 15

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 16-Lead Plastic QFN (4mm × ...

Page 16

... IIP3 at 1.9GHz 12.5dB, Single-Ended RF and LO Ports Precision V Offset Control, Adjustable Gain and Offset Voltage OUT 60dB Dynamic Range, Superb Temperature Stability, Tiny 2mm × 2mm SC70 Package, Low Power Consumption www.linear.com ● 5522fa LT 1105 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2003 ...

Related keywords