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LT5522EUF#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LT5522
1
5522fa
, 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.
Consult factory for information and assistance.
■
Internal On-Chip RF Input Transformer
■
50Ω Single-Ended RF and LO Ports
■
High Input IP3: +25dBm at 900MHz
+21.5dBm at 1900MHz
■
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
400MHz to 2.7GHz
High Signal Level
Downconverting Mixer
■
Cellular, PCS and UMTS Band Infrastructure
■
CATV Downlink Infrastructure
■
2.4GHz ISM
■
High Linearity Downmixer Applications
Figure 1. High Signal Level Downmixer for Wireless Infrastructure
The LT
®
5522 active downconverting mixer is optimized for
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.
LTC1748
ADC
5522 F01
140MHz
(TYP)
1850MHz
TO
1910MHz
100pF
2.7pF
IF
+
LO
–
LT5522
LO
+
LO INPUT
–5dBm
IF
–
RF
+
RF
–
EN V
CC1
V
CC2
150nH
150nH
0.01µF 3.3µF
5V
BIAS/
CONTROL
VGA
LNA
LO INPUT POWER (dBm)
–11
0
G
C
, SSB NF (dB), IIP3 (dBm)
4
8
12
16
–9 –7 –5 –3
5522 TA01
–1 1
20
IIP3
24
22
IF = 140MHz
LOW-SIDE LO
T
A
= 25°C
V
CC
= 5V
2
6
10
14
18
–70
–60
LO-RF LEAKAGE (dBm)
–50
–40
–30
–20
–10
SSB NF
LO-RF
1.9GHz Conversion Gain, IIP3, SSB
NF and LO-RF Leakage vs LO Power
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
LT5522
2
5522fa
Supply Voltage ...................................................... 5.5V
Enable Voltage ............................... –0.3V to V
CC
+ 0.3V
LO Input Power ............................................... +10dBm
LO
+
to LO
–
Differential DC Voltage ......................... ±1V
LO Input DC Common Mode Voltage ...................... ±1V
RF Input Power ................................................ +10dBm
RF
+
to RF
–
Differential DC Voltage ........................ ±0.2V
RF Input DC Common Mode Voltage ...................... ±1V
Operating Temperature Range ................ –40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
Junction Temperature (T
J
).................................... 125°C
(Note 1)
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
(Test circuit shown in Figure 2) V
CC
= 5VDC, EN = high, T
A
= 25°C,
unless otherwise noted. (Note 3)
DC ELECTRICAL CHARACTERISTICS
AC ELECTRICAL CHARACTERISTICS
(Notes 2, 3) (Test circuit shown in Figure 2).
PARAMETER CONDITIONS MIN TYP MAX UNITS
RF Input Frequency Range Shunt Capacitor on Pin 3 (Low Band) 400 MHz
No External Matching (Mid Band) 1200 to 2300 MHz
Shunt Inductor on Pin 3 (High Band) 2700 MHz
LO Input Frequency Range No External Matching 400 2700 MHz
IF Output Frequency Range Requires Appropriate IF Matching 0.1 to 1000 MHz
RF Input Return Loss Z
O
= 50Ω 15 dB
LO Input Return Loss Z
O
= 50Ω 13 dB
IF Output Return Loss Z
O
= 50Ω 18 dB
LO Input Power –10 –5 0 dBm
RF to LO Isolation 50MHz to 2700MHz >45 dB
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
16 15 14 13
5 6 7 8
TOP VIEW
17
UF PACKAGE
16-LEAD (4mm × 4mm) PLASTIC QFN
9
10
11
12
4
3
2
1NC
RF
+
RF
–
NC
GND
IF
+
IF
–
GND
NC
LO
+
LO
–
NC
EN
V
CC1
V
CC2
NC
UF PART MARKING
LT5522EUF 5522
PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply Requirements (V
CC
)
Supply Voltage 4.5 5 5.25 VDC
Supply Current V
CC
= 5V 56 68 mA
Shutdown Current EN = Low 100 µA
Enable (EN) Low = Off, High = On
Input High Voltage (On) 3 VDC
Input Low Voltage (Off) 0.3 VDC
Enable Pin Input Current EN = 5VDC 55 75 µA
Turn On Time 3 µs
Turn Off Time 5 µs
LT5522
3
5522fa
AC ELECTRICAL CHARACTERISTICS
Cellular/PCS/UMTS downmixer application: V
CC
= 5V, EN = high,
T
A
= 25°C, P
RF
= –7dBm (–7dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz), f
LO
= f
RF
– 140MHz, P
LO
= –5dBm, IF output measured at
140MHz, unless otherwise noted. (Notes 2, 3) (Test circuit shown in Figure 2).
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain RF = 450MHz, High Side LO –2.0 dB
RF = 900MHz –0.5 dB
RF = 1800MHz –2 –0.2 dB
RF = 1900MHz –0.1 dB
RF = 2100MHz 0.2 dB
RF = 2450MHz –0.7 dB
Conversion Gain vs Temperature T
A
= –40°C to 85°C –0.02 dB/°C
Input 3rd Order Intercept RF = 450MHz, High Side LO 22.3 dBm
RF = 900MHz 25.0 dBm
RF = 1800MHz 21.8 dBm
RF = 1900MHz 21.5 dBm
RF = 2100MHz 20.0 dBm
RF = 2450MHz 16.8 dBm
Single Sideband Noise Figure (Note 4) RF = 900MHz 12.5 dB
RF = 1800MHz 13.9 dB
RF = 2100MHz 14.3 dB
RF = 2450MHz 15.6 dB
LO to RF Leakage f
LO
= 400MHz to 2700MHz ≤–50 dBm
LO to IF Leakage f
LO
= 400MHz to 2700MHz ≤–49 dBm
2RF-2LO Output Spurious Product (f
RF
= f
LO
+ f
IF
/2) 900MHz: f
RF
= 830MHz at –12dBm –73 dBc
1900MHz: f
RF
= 1830MHz at –12dBm –60 dBc
3RF-3LO Output Spurious Product (f
RF
= f
LO
+ f
IF
/3) 900MHz: f
RF
= 806.67MHz at –12dBm –72 dBc
1900MHz: f
RF
= 1806.67MHz at –12dBm –65 dBc
Input 1dB Compression RF = 450MHz, High Side LO 12.0 dBm
RF = 900MHz 10.8 dBm
RF = 1900MHz 8.0 dBm
1150MHz CATV infrastructure application: V
CC
= 5V, EN = high, T
A
= 25°C, RF input = 1150MHz at –12dBm (–12dBm/tone for 2-tone
IIP3 tests, ∆f = 1MHz), LO input swept from 1200MHz to 2200MHz, P
LO
= –5dBm, IF output measured from 50MHz to 1050MHz unless
otherwise noted. (Note 3) (Test circuit shown in Figure 3).
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain f
LO
= 1650MHz, f
IF
= 500MHz –0.6 dB
Input 3rd Order Intercept f
LO
= 1650MHz, f
IF
= 500MHz 23 dBm
Single Sideband Noise Figure (Note 4) f
LO
= 1650MHz, f
IF
= 500MHz 14.3 dB
LO to RF Leakage f
LO
= 1200MHz to 2200MHz ≤–51 dBm
LO to IF Leakage f
LO
= 1200MHz to 2200MHz ≤–45 dBm
2RF – LO Output Spurious Product P
RF
= –12dBm (Single Tone), 50MHz ≤ f
IF
≤ 900MHz ≤–63 dBc
2RF1 – LO Output Spurious Product 2 –68 dBc
2RF2 – LO Output Spurious Product –68 dBc
(RF1 + RF2) – LO Output Spurious Product –63 dBc
RF Input Return Loss 950MHz to 1350MHz, Z
O
= 50Ω >15 dB
LO Input Return Loss 1200MHz to 2200MHz, Z
O
= 50Ω 13 dB
IF Output Return Loss 50MHz to 1050MHz, Z
O
= 50Ω 10 dB
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: 450MHz, 900MHz and 2450MHz performance measured with the
following external RF input matching. 450MHz: C5 = 8.2pF, 5mm away
from Pin 3 on the 50Ω input line. 900MHz: C5 = 2.2pF at Pin 3. 2450MHz:
L3 = 3.9nH at Pin 3. See Figure 2.
Note 3: Specifications over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with
statistical process controls.
Note 4: SSB Noise Figure measurements performed with a small-signal noise
source and bandpass filter on RF input, and no other RF signal applied.
2-Tone 2nd Order Spurious Outputs
RF1 = 1147MHz, RF2 = 1153MHz, –15dBm/Tone
LO = 1650MHz, Spurs at 644MHz, 656MHz and 650MHz
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT5522EUF#PBF

Mfr. #:
Buy LT5522EUF#PBF
Manufacturer:
Analog Devices Inc.
Description:
RF Mixer 600MHz to 2700MHz Downconverting Mixer
Lifecycle:
New from this manufacturer.
Delivery:
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