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

LT5557EUF#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LT5557
1
5557fc
Typical applicaTion
DescripTion
400MHz to 3.8GHz 3.3V
Active Downconverting Mixer
The LT
®
5557 active mixer is optimized for high linearity,
wide dynamic range downconverter applications. The
IC includes a high speed differential LO buffer amplifier
driving a double-balanced mixer. Broadband, integrated
transformers on the RF and LO inputs provide single-ended
50Ω interfaces. The differential IF output allows convenient
interfacing to differential IF filters and amplifiers, or is
easily matched to drive a single-ended 50Ω load, with or
without an external transformer.
The RF input is internally matched to 50Ω from 1.6GHz
to 2.3GHz, and the LO input is internally matched to 50Ω
from 1GHz to 5GHz. The frequency range of both ports
is easily extended with simple external matching. The IF
output is partially matched and usable for IF frequencies
up to 600MHz.
The LT5557’s high level of integration minimizes the total
solution cost, board space and system-level variation.
High Signal Level Downmixer for Multi-Carrier Wireless Infrastructure
FeaTures
applicaTions
n
Wide RF Frequency Range: 400MHz to 3.8GHz*
n
High Input IP3: 25.6dBm at 900MHz
24.7dBm at 1950MHz
23.7dBm at 2.6GHz
n
Conversion Gain: 3.3dB at 900MHz
2.9dB at 1950MHz
n
–3dBm LO Drive Level
n
Low LO Leakage
n
Low Noise Figure: 10.6dB at 900MHz
11.7dB at 1950MHz
n
Low Power: 3.3V/269mW
n
50Ω Single-Ended RF and LO Ports
n
Very Few External Components
n
16-Lead (4mm × 4mm) QFN Package
n
Cellular, CDMA, WCDMA, TD-SCDMA and UMTS
Infrastructure
n
WiMAX
n
Wireless Infrastructure Receiver
n
Wireless Infrastructure PA Linearization
n
900MHz/2.4GHz/3.5GHz WLAN
Conversion Gain, IIP3, SSB NF and
LO Leakage vs RF Frequency
BIAS
EN
RF
IF
+
IF
–
100nH
100nH
4.7pF
150nH
IF
OUTPUT
240MHz
RF
INPUT
V
CC2
V
CC1
LO INPUT
–3dBm (TYP)
1nF 1µF
1nF
4.7pF
3.3V
5557 TA01a
LT5557
GND
RF FREQUENCY (MHz)
1700
G
C
(dB), NF (dB), IIP3 (dBm)
LO LEAKAGE (dBm)
10
22
24
26
1900
2100
5557 TA01b
6
18
14
8
20
2
4
16
12
40
20
10
0
30
60
50
1800
2000
2200
LOW SIDE LO
IF = 240MHz
P
LO
= –3dBm
T
A
= 25°C
V
CC
= 3.3V
IIP3
SSB NF
G
C
LO-IF
LO-RF
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.\*Operation over a wider frequency range is possible with reduced performance.
Consult factory for information and assistance.
LT5557
2
5557fc
absoluTe MaxiMuM raTings
Supply Voltage (V
CC1
, V
CC2
, IF
+
, IF
–
) ..........................4V
Enable Voltage .................................–0.3V to V
CC
+ 0.3V
LO Input Power (380MHz to 4.2GHz) ................. +10dBm
LO Input DC Voltage ............................... –1V to V
CC
+ 1V
RF Input Power (400MHz to 3.8GHz) ................. +15dBm
Continuous RF Input Power
(400MHz to 3.8GHz) .......................................... +12dBm
RF Input DC Voltage ............................................... ±0.1V
Operating Temperature Range .................–40°C to 85°C
Storage Temperature Range .................. –65°C to 125°C
Junction Temperature (T
J
) .................................... 125°C
(Note 1)
Dc elecTrical characTerisTics
PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply Requirements (V
CC
)
Supply Voltage 2.9 3.3 3.9 V
Supply Current V
CC1
(Pin 7)
V
CC2
(Pin 6)
IF
+
+ IF
–
(Pin 11 + Pin 10)
Total Supply Current
25.1
3.3
53.2
81.6
60
92
mA
mA
mA
mA
Enable (EN) Low = Off, High = On
Shutdown Current EN = Low 100 µA
Input High Voltage (On) 2.7 V
Input Low Voltage (Off) 0.3 V
EN Pin Input Current EN = 3.3V DC 53 90 µA
Turn-ON Time 1.6 µs
Turn-OFF Time 1.6 µs
V
CC
= 3.3V, EN = High, T
A
= 25°C, unless otherwise specified. Test
circuit shown in Figure 1. (Note 3)
ac elecTrical characTerisTics
Test circuit shown in Figure 1. (Notes 2, 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
RF Input Frequency Range No External Matching (Midband)
With External Matching (Low Band or High Band)
400
1600 to 2300
3800
MHz
MHz
LO Input Frequency Range No External Matching
With External Matching
380
1000 to 4200 MHz
MHz
IF Output Frequency Range Requires Appropriate IF Matching 0.1 to 600 MHz
RF Input Return Loss Z
O
= 50Ω, 1600MHz to 2300MHz (No External Matching) >12 dB
pin conFiguraTion
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
NC
RF
NC
GND
IF
+
IF
–
GND
NC
LO
NC
NC
EN
V
CC2
V
CC1
NC
T
JMAX
= 125°C, θ
JC
= 8°C/W, θ
JA
= 37°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
CAUTION: This part is sensitive to electrostatic discharge
(ESD). It is very important that proper ESD precautions
be observed when handling the LT5557.
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT5557EUF#PBF LT5557EUF#TRPBF 5557
16-Lead (4mm × 4mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
LT5557
3
5557fc
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: 450MHz and 900MHz performance measured with external LO
and RF matching. 2600MHz and 3600MHz performance measured with
external RF matching. See Figure 1 and Applications Information.
Standard Downmixer Application: V
CC
= 3.3V, EN = High, T
A
= 25°C, P
RF
= –6dBm (–6dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz), f
LO
= f
RF
– f
IF
, P
LO
= –3dBm (0dBm for 450MHz and 900MHz tests), IF output measured at 240MHz, unless otherwise noted. Test circuit
shown in Figure 1. (Notes 2, 3, 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain RF = 450MHz, IF = 70MHz, High Side LO
RF = 900MHz, IF = 140MHz
RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
RF = 2600MHz, IF = 360MHz
RF = 3600MHz, IF = 450MHz
2.9
3.3
3.0
2.9
2.9
2.5
1.7
dB
dB
dB
dB
dB
dB
dB
Conversion Gain vs Temperature T
A
= –40°C to 85°C, RF = 1950MHz –0.0217 dB/°C
Input 3rd Order Intercept RF = 450MHz, IF = 70MHz, High Side LO
RF = 900MHz, IF = 140MHz
RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
RF = 2600MHz, IF = 360MHz
RF = 3600MHz, IF = 450MHz
24.1
25.6
25.5
24.7
24.3
23.7
23.5
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Single-Sideband Noise Figure RF = 450MHz, IF = 70MHz, High Side LO
RF = 900MHz, IF = 140MHz
RF = 1750MHz
RF = 1950MHz
RF = 2150MHz
RF = 2600MHz, IF = 360MHz
RF = 3600MHz, IF = 450MHz
12.7
10.6
11.3
11.7
12.8
13.2
15.4
dB
dB
dB
dB
dB
dB
dB
LO to RF Leakage f
LO
= 380MHz to 1600MHz
f
LO
= 1600MHz to 4000MHz
≤–50
≤–45
dBm
dBm
LO to IF Leakage f
LO
= 380MHz to 2200MHz
f
LO
= 2200MHz to 4000MHz
≤–42
≤–38
dBm
dBm
RF to LO Isolation f
RF
= 400MHz to 1700MHz
f
RF
= 1700MHz to 3800MHz
>50
>42
dB
dB
RF to IF Isolation f
RF
= 400MHz to 2300MHz
f
RF
= 2300MHz to 3800MHz
>41
>37
dB
dB
2RF-2LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/2)
900MHz: f
RF
= 830MHz at –6dBm, f
IF
= 140MHz
1950MHz: f
RF
= 1830MHz at –6dBm, f
IF
= 240MHz
–61
–53
dBc
dBc
3RF-3LO Output Spurious Product
(f
RF
= f
LO
+ f
IF
/3)
900MHz: f
RF
= 806.67MHz at –6dBm, f
IF
= 140MHz
1950MHz: f
RF
= 1790MHz at –6dBm, f
IF
= 240MHz
–83
–70
dBc
dBc
Input 1dB Compression RF = 450MHz, IF = 70MHz, High Side LO
RF = 900MHz, IF = 140MHz
RF = 1950MHz
RF = 2600MHz, IF = 360MHz
RF = 3600MHz, IF = 450MHz
10.0
8.8
8.8
8.6
9.1
dBm
dBm
dBm
dBm
dBm
Note 3: The LT5557 is guaranteed functional over the –40°C to 85°C
operating temperature range.
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.
ac elecTrical characTerisTics
PARAMETER CONDITIONS MIN TYP MAX UNITS
LO Input Return Loss Z
O
= 50Ω, 1000MHz to 5000MHz (No External Matching) >10 dB
IF Output Impedance Differential at 240MHz 529Ω||2.6pF R||C
LO Input Power 1200MHz to 4200MHz
380MHz to 1200MHz
–8
–5
–3
0
2
5
dBm
dBm
Test circuit shown in Figure 1. (Notes 2, 3)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LT5557EUF#TRPBF

Mfr. #:
Buy LT5557EUF#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
RF Mixer 400 MHz to 3.8 GHz 3.3V Downconverting Mixer
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet