OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LT5516EUF#PBF

P1-P3P4-P6P7-P9P10-P12
LT5516
1
5516fa
LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
The LT
®
5516 is an 800MHz to 1.5GHz direct conversion
quadrature demodulator optimized for high linearity re-
ceiver applications. It is suitable for communications
receivers where an RF or IF signal is directly converted into
I and Q baseband signals with bandwidth up to 260MHz.
The LT5516 incorporates balanced I and Q mixers, LO
buffer amplifiers and a precision, high frequency quadra-
ture generator.
In an RF receiver, the high linearity of the LT5516 provides
excellent spur-free dynamic range, even with fixed gain
front end amplification. This direct conversion receiver
can eliminate the need for intermediate frequency (IF)
signal processing, as well as the corresponding require-
ments for image filtering and IF filtering. Channel filtering
can be performed directly at the outputs of the I and Q
channels. These outputs can interface directly to channel-
select filters (LPFs) or to a baseband amplifier.
■
Cellular/PCS/UMTS Infrastructure
■
High Linearity Direct Conversion I/Q Receiver
■
High Linearity I/Q Demodulator
■
Frequency Range: 800MHz to 1.5GHz
■
High IIP3: 21.5dBm at 900MHz
■
High IIP2: 52dBm
■
Noise Figure: 12.8dB at 900MHz
■
Conversion Gain: 4.3dB at 900MHz
■
I/Q Gain Mismatch: 0.2dB
■
Shutdown Mode
■
16-Lead QFN 4mm × 4mm Package
with Exposed Pad
800MHz to 1.5GHz Direct
Conversion Quadrature Demodulator
Figure 1. High Signal-Level I/Q Demodulator for Wireless Infrastructure
BPF
5V
V
CC
BPF
RF
+
RF
–
LPF
LT5516
I
OUT
+
I
OUT
–
0°
LO
+
LO INPUT
LO
–
ENENABLE
LPF
DSP
Q
OUT
+
Q
OUT
–
90°
0°/90°
5516 F01
LNA
VGA
VGA
20
0
–20
–40
–60
–80
–100
RF INPUT POWER (dBm)
–18
–14 –10 –6 –2 26
5516 TA01
P
OUT
, IM3 (dBm/TONE)
P
OUT
IM3
V
CC
= 5v
T
A
= 25°C
P
LO
= –10dBm
f
LO
= 901MHz
f
RF1
= 899.9MHz
f
RF2
= 900.1MHz
I/Q Output Power, IM3 vs
RF Input Power
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
LT5516
2
5516fa
Power Supply Voltage ............................................ 5.5V
Enable Voltage ...................................................... 0, V
CC
LO
+
to LO
–
Differential Voltage ............................... ±2V
(+10dBm Equivalent)
RF
+
to RF
–
Differential Voltage ................................ ±2V
(+10dBm Equivalent)
Operating Ambient Temperature ..............–40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
Maximum Junction Temperature .......................... 125°C
ORDER PART
NUMBER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT5516EUF
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
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
1GND
RF
+
RF
–
GND
V
CC
LO
–
LO
+
V
CC
I
OUT
+
I
OUT
–
Q
OUT
+
Q
OUT
–
V
CC
V
CM
EN
V
CC
EXPOSED PAD (PIN 17) IS GROUND
(MUST BE SOLDERED TO PCB)
T
JMAX
= 125°C, θ
JA
= 38°C/W
UF PART
MARKING
5516
T
A
= 25°C. V
CC
= 5V, EN = high, f
RF1
= 899.9MHz, f
RF2
= 900.1MHz,
f
LO
= 901MHz, P
LO
= –10dBm unless otherwise noted. (Notes 2, 3) (Test circuit shown in Figure 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Frequency Range 0.8 to 1.5 GHz
LO Power –13 to –2 dBm
Conversion Gain Voltage Gain, Load Impedance = 1k 2 4.3 dB
Conversion Gain Variation vs Temperature – 40°C to 85°C 0.01 dB/°C
Noise Figure R1 = 8.2Ω 11.4 dB
R1 = 3.3Ω, P
LO
= –5dBm 12.8 dB
Input 3rd Order Intercept 2-Tone, –10dBm/Tone, R1 = 8.2Ω 17.0 dBm
∆f = 200kHz R1 = 3.3Ω, P
LO
= –5dBm 21.5 dBm
Input 2nd Order Intercept Input = –10dBm R1 = 8.2Ω 46.0 dBm
R1 = 3.3Ω, P
LO
= –5dBm 52.0 dBm
Input 1dB Compression R1 = 8.2Ω 6.6 dBm
Baseband Bandwidth 260 MHz
I/Q Gain Mismatch (Note 4) 0.2 0.7 dB
I/Q Phase Mismatch (Note 4) 1 degree
Output Impedance Differential 120 Ω
LO to RF Leakage – 65 dBm
RF to LO Isolation 57 dB
AC ELECTRICAL CHARACTERISTICS
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/
LT5516
3
5516fa
DC ELECTRICAL CHARACTERISTICS
T
A
= 25°C. V
CC
= 5V unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage 4 5.25 V
Supply Current 80 117 150 mA
Shutdown Current EN = Low 20 µA
Turn-On Time 120 ns
Turn-Off Time 650 ns
EN = High (On) 1.6 V
EN = Low (Off) 1.3 V
EN Input Current V
ENABLE
= 5V 2 µA
Output DC Offset Voltage f
LO
= 901MHz, P
LO
= –10dBm 1 25 mV
(
⏐I
OUT
+
– I
OUT
–
⏐, ⏐Q
OUT
+
– Q
OUT
–
⏐)
Output DC Offset Variation vs Temperature –40°C to 85°C20µV/°C
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Tests are performed as shown in the configuration of Figure 2 with
R1 = 8.2Ω, unless otherwise noted.
Note 3: Specifications over the –40°C to 85°C temperature range are
assured by design, characterization and correlation with statistical process
control.
Note 4: Measured at P
RF
= –10dBm and output frequency = 1MHz.
P1-P3P4-P6P7-P9P10-P12

LT5516EUF#PBF

Mfr. #:
Buy LT5516EUF#PBF
Manufacturer:
Analog Devices Inc.
Description:
Modulator / Demodulator 800MHz - 1500MHz Quadrature Demodulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet