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LT5519EUF#PBF

P1-P3P4-P6P7-P9P10-P12
LT5519
1
5519f
■
Wide RF Frequency Range: 0.7GHz to 1.4GHz
■
17.1dBm Typical Input IP3 at 1GHz
■
On-Chip RF Output Transformer
■
On-Chip 50Ω Matched LO and RF Ports
■
Single-Ended LO and RF Operation
■
Integrated LO Buffer: –5dBm Drive Level
■
Low LO to RF Leakage: – 44dBm Typical
■
Noise Figure: 13.6dB
■
Wide IF Frequency Range: 1MHz to 400MHz
■
Enable Function with Low Off-State Leakage Current
■
Single 5V Supply
■
Small 16-Lead QFN Plastic Package
0.7GHz to 1.4GHz
High Linearity
Upconverting Mixer
The LT
®
5519 mixer is designed to meet the high linearity
requirements of wireless and cable infrastructure trans-
mission systems. A high speed, internally 50Ω matched,
LO amplifier drives a double-balanced mixer core, allow-
ing the use of a low power, single-ended LO source. An RF
output transformer is integrated, thus eliminating the
need for external matching components at the RF output,
while reducing system cost, component count, board area
and system-level variations. The IF port can be easily
matched to a broad range of frequencies for use in many
different applications.
The LT5519 mixer delivers +17.1dBm typical input 3rd
order intercept point at 1GHz with IF input signal levels of
–10dBm. The input 1dB compression point is typically
+5.5dBm. The IC requires only a single 5V supply.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Figure 1. Frequency Conversion in Wireless Infrastructure Transmitter
RF Output Power, IM3 and IM2
vs IF Input Power (Two Input Tones)
IF
+
IF
–
LO
–
LO
+
RF
+
RF
–
PA
LO INPUT
–5dBm
BIAS
EN V
CC1
V
CC2
V
CC3
10pF
5pF5pF
85Ω
5V
DC
5519 F01a
BPF
BPF
GND
4:1
220pF
220pF
33pF
100Ω
100Ω
(OPTIONAL)
LT5519
1µF 1000pF
39nH
■
Wireless Infrastructure
■
Cable Downlink Infrastructure
■
Point-to-Point and Point-to-Multipoint Data
Communications
■
High Linearity Frequency Conversion
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
IF INPUT POWER (dBm/TONE)
–16
P
OUT
, IM3, IM2 (dBm/TONE)
–30
–10
10
0
5519 F01b
–50
–70
–40
–20
0
–60
–80
–90
–12
–8
–4
4
P
OUT
IM3
IM2
f
RF
= 1000MHz
P
LO
= –5dBm
f
LO
= 1140MHz
f
IF1
= 140MHz
f
IF2
= 141MHz
T
A
= 25°C
LT5519
2
5519f
Supply Voltage ....................................................... 5.5V
Enable Voltage ............................. –0.3V to (V
CC
+ 0.3V)
LO Input Power (Differential)............................ +10dBm
LO
+
to LO
–
Differential DC Voltage .......................... ±1V
LO
+
and LO
–
DC Common Mode Voltage...... –1V to V
CC
IF Input Power (Differential) ............................. +10dBm
IF
+
and IF
–
DC Currents ........................................ 25mA
RF
+
to RF
–
Differential DC Voltage...................... ±0.13V
RF
+
and RF
–
DC Common Mode Voltage...... –1V to V
CC
Operating Temperature Range .................–40°C to 85°C
Storage Temperature Range ................. –65°C to 125°C
Junction Temperature (T
J
)....................................125°C
ORDER PART
NUMBER
UF PART
MARKING
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 17) IS GND
MUST BE SOLDERED TO PCB
5519
LT5519EUF
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
16 15 14 13
5 6 7 8
TOP VIEW
UF PACKAGE
16-LEAD (4mm × 4mm) PLASTIC QFN
9
10
11
12
4
3
2
1
EN
V
CC1
V
CC2
V
CC3
GND
IF
+
IF
–
GND
GND
RF
+
RF
–
GND
GND
LO
–
LO
+
GND
17
PARAMETER CONDITIONS MIN TYP MAX UNITS
IF Input Frequency Range 1 to 400 MHz
LO Input Frequency Range 300 to 1800 MHz
RF Output Frequency Range 700 to 1400 MHz
1GHz Application: V
CC
= 5V
DC
, EN = High, T
A
= 25°C, IF input = 140MHz at –10dBm, LO input = 1.14GHz at –5dBm, RF output measured
at 1GHz, unless otherwise noted. (Test circuit shown in Figure 2) (Notes 2, 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
IF Input Return Loss Z
O
= 50Ω, with External Matching 20 dB
LO Input Return Loss Z
O
= 50Ω 17 dB
RF Output Return Loss Z
O
= 50Ω 20 dB
LO Input Power –10 to 0 dBm
Conversion Gain –0.6 dB
Input 3rd Order Intercept –10dBm/Tone, ∆f = 1MHz 17.1 dBm
Input 2nd Order Intercept –10dBm, Single Tone 48 dBm
LO to RF Leakage –44 dBm
LO to IF Leakage –40 dBm
Input 1dB Compression 5.5 dBm
IF Common Mode Voltage Internally Biased 1.77 V
DC
Noise Figure Single-Side Band 13.6 dB
LT5519
3
5519f
(Test Circuit Shown in Figure 2) V
CC
= 5V
DC
, EN = High, T
A
= 25°C, unless otherwise noted. (Note 3)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: External components on the final test circuit are optimized for
operation at f
RF
= 1GHz, f
LO
= 1.14GHz and f
IF
= 140MHz.
Note 3: Specifications over the –40°C to 85°C temperature range are
assured by design, characterization and correlation with statistical process
controls.
Note 4: Turn-On and Turn-Off times are based on the rise and fall times of
the RF output envelope from –40dBm to full power with an IF input power
of –10dBm.
DC ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Enable (EN) Low = OFF, High = ON
Turn-On Time (Note 4) 2 µs
Turn-Off Time (Note 4) 6 µs
Input Current V
ENABLE
= 5V
DC
110 µA
Enable = High (ON) 3V
DC
Enable = Low (OFF) 0.5 V
DC
Power Supply Requirements (V
CC
)
Supply Voltage 4.5 to 5.25 V
DC
Supply Current V
CC
= 5V
DC
60 70 mA
Shutdown Current EN = Low 1 100 µA
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Supply Current vs Supply Voltage
Shutdown Current
vs Supply Voltage
(Test Circuit Shown in Figure 2)
SUPPLY VOLTAGE (V)
4
SUPPLY CURRENT (mA)
56
58
60
4.75
5.25
5519 G01
54
52
50
4.25 4.5 5
62
64
66
5.5
T
A
= 85°C
T
A
= 25°C
T
A
= –40°C
SUPPLY VOLTAGE (V)
4
0
SHUTDOWN CURRENT (µA)
0.2
0.4
0.6
0.8
1.2
4.25
4.5 4.75 5
5519 G02
5.25 5.5
1.0
T
A
= 85°C
T
A
= 25°C
T
A
= –40°C
P1-P3P4-P6P7-P9P10-P12

LT5519EUF#PBF

Mfr. #:
Buy LT5519EUF#PBF
Manufacturer:
Analog Devices Inc.
Description:
RF Mixer 700MHz to 1.4GHz Upconverting Mixer
Lifecycle:
New from this manufacturer.
Delivery:
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