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LT5579IUH#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LT5579
1
5579fa
Typical applicaTion
FeaTures
applicaTions
DescripTion
1.5GHz to 3.8GHz
High Linearity
Upconverting Mixer
n
GSM/EDGE, W-CDMA, UMTS, LTE and TD-SCDMA
Basestations
n
2.6GHz and 3.5GHz WiMAX Basestations
n
2.4GHz ISM Band Transmitters
n
High Performance Transmitters
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 wider frequency range is possible with reduced performance.
Consult
Linear Technology for information and assistance.
Frequency Upconversion in 2.14GHz W-CDMA Transmitter
Gain, NF and OIP3 vs
RF Output Frequency
n
High Output IP3: +27.3dBm at 2.14GHz
n
Low Noise Floor: –158dBm/Hz (P
OUT
= –5dBm)
n
High Conversion Gain: 2.6dB at 2.14GHz
n
Wide Frequency Range: 1.5GHz to 3.8GHz*
n
Low LO Leakage
n
Single-Ended RF and LO
n
Low LO Drive Level: –1dBm
n
Single 3.3V Supply
n
5mm × 5mm QFN24 Package
The LT
®
5579 mixer is a high performance upconverting
mixer optimized for frequencies in the 1.5GHz to 3.8GHz
range. The single-ended LO input and RF output ports
simplify board layout and reduce system cost. The mixer
needs only –1dBm of LO power and the balanced design
results in low LO signal leakage to the RF output. At 2.6GHz
operation, the LT5579 provides high conversion gain of
1.3dB, high OIP3 of +26dBm and a low noise floor of
–157.5dBm/Hz at a –5dBm RF output signal level.
The LT5579 offers a high performance alternative to pas
-
sive mixers. Unlike passive mixers, which have conversion
loss and require high LO drive levels, the LT5579 delivers
conversion gain at significantly lower LO input levels and
is less sensitive to LO power level variations. The lower
LO drive level requirements, combined with the excellent
LO leakage performance, translate into lower LO signal
contamination of the output signal.
BIAS
LT5579
RF
GND
LO
V
CC
V
CC
3.3V
5579 TA01a
1µF
IF
+
IF
–
40nH
11Ω
11Ω
33pF
82pF
MABAES0061
4:1
82pF
100pF 1nF
0.45pF
RF
OUTPUT
2140MHz
LO INPUT
–1dBm (TYP)
IF
INPUT
240MHz
3.9nH
40nH
RF FREQUENCY (MHz)
1900
0
GAIN (dB), NF (dB), OIP3 (dBm)
5
10
15
20
25
OIP3
SSB NF
GAIN
30
2000 2100 2200 2300
5579 TA01b
2400
T
A
= 25°C
V
CC
= 3.3V
f
IF
= 240MHz
f
LO
= f
RF
+ f
IF
LT5579
2
5579fa
pin conFiguraTionabsoluTe MaxiMuM raTings
Supply Voltage ............................................................4V
LO Input Power .................................................. +10dBm
LO
Input DC Voltage........................ –0.
3V to V
CC
+ 0.3V
RF Output DC Current ........................................... 60mA
IF
Input Power (Differential) ............................... +13dBm
IF
+
, IF
–
DC Currents .............................................. 60mA
T
JMAX
.................................................................... 150°C
Operating Temperature Range .................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
(Note 1)
24 23 22 21 20 19
7 8 9
TOP VIEW
25
UH PACKAGE
24-LEAD (5mm s 5mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
GND
GND
IF
+
IF
–
GND
GND
GND
GND
GND
RF
GND
GND
GND
GND
LO
GND
GND
GND
GND
V
CC
V
CC
V
CC
V
CC
GND
T
JMAX
= 150°C, θ
JA
= 34°C/W, θ
JC
= 3°C/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT5579IUH#PBF LT5579IUH#TRPBF 5579
24-Lead (5mm
× 5mm)
Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult L
TC 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/
Dc elecTrical characTerisTics
V
CC
= 3.3V, T
A
= 25°C (Note 3), unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply Requirements (V
CC
)
Supply Voltage 3.15 3.3 3.6 V
DC
Supply Current V
CC
= 3.3V, P
LO
= –1dBm
V
CC
= 3.6V, P
LO
= –1dBm
226
241
250 mA
mA
Input Common Mode Voltage (V
CM
) Internally Regulated 570 mV
ac elecTrical characTerisTics
(Notes 2, 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
IF Input Frequency Range (Note 4) Requires Matching LF to 1000 MHz
LO Input
Frequency Range (Note 4) Requires Matching Below 1GHz 750 to 4300 MHz
RF Output
Frequency Range (Note 4) Requires Matching 900 to 3900 MHz
LT5579
3
5579fa
ac elecTrical characTerisTics
V
CC
= 3.3V, T
A
= 25°C, P
IF
= –5dBm (–5dBm/tone for 2-tone tests,
∆f = 1MHz), P
LO
= –1dBm, unless otherwise noted. Test circuits are shown in Figure 1. (Notes 2, 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
IF Input Return Loss Z
O
= 50Ω, External Match 15 dB
LO Input Return Loss Z
O
= 50Ω, 1100MHz to 4000MHz >9 dB
RF Output Return Loss Z
O
= 50Ω, External Match >10 dB
LO Input Power –5 to 2 dBm
V
CC
= 3.3V, T
A
= 25°C, P
IF
= –5dBm (–5dBm/tone for 2-tone tests, ∆f = 1MHz), P
LO
= –1dBm, unless otherwise noted.
Low side LO for 1750MHz and 3600MHz. High side LO for 2140MHz and 2600MHz. (Notes 2, 3, 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Conversion Gain f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
1.8
2.6
1.3
–0.5
dB
dB
dB
dB
Conversion Gain vs Temperature
(T
A
= –40°C to 85°C)
f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
–0.020
–0.020
–0.027
–0.027
dB/°C
dB/°C
dB/°C
dB/°C
Output 3rd Order Intercept f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
29
27.3
26.2
23.2
dBm
dBm
dBm
dBm
Output 2nd Order Intercept f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
41
42
45
54
dBm
dBm
dBm
dBm
Single Sideband Noise Figure f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
9.2
9.9
12
12
dB
dB
dB
dB
Output Noise Floor (P
OUT
= –5dBm) f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
–159.5
–158.1
–157.5
–155.5
dBm/Hz
dBm/Hz
dBm/Hz
dBm/Hz
Output 1dB Compression f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
13.3
13.9
13.7
10.7
dBm
dBm
dBm
dBm
IF to LO Isolation f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
83
81
74
73
dB
dB
dB
dB
LO to IF Leakage f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
–23
–28
–26
–22
dBm
dBm
dBm
dBm
LO to RF Leakage f
IF
= 240MHz, f
RF
= 1750MHz
f
IF
= 240MHz, f
RF
= 2140MHz
f
IF
= 456MHz, f
RF
= 2600MHz
f
IF
= 456MHz, f
RF
= 3600MHz
–39
–35
–36
–35
dBm
dBm
dBm
dBm
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: Each
set of frequency conditions requires appropriate matching
(see Figure 1).
Note 3: The
LT5579 is guaranteed functional over the operating
temperature range from –40°C to 85°C.
Note 4: SSB
noise figure measurements performed with a small-signal
noise source and bandpass filter on LO signal generator. No other IF signal
applied.
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LT5579IUH#TRPBF

Mfr. #:
Buy LT5579IUH#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
RF Mixer 1.5 GHz to 3.8GHz High Linearity Upconverting Mixer
Lifecycle:
New from this manufacturer.
Delivery:
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