鈻?/div>
DESCRIPTIO
Operation up to 2GHz
Broadband RF, LO and IF Operation
High Input IP3: +16.5dBm at 900MHz
Typical Conversion Gain: 0.6dB at 900MHz
SSB Noise Figure: 11dB at 900MHz
On-Chip 50鈩?LO Match
Integrated LO Buffer: 鈥?dBm Drive Level
High LO-RF and LO-IF Isolation
Low Supply Current: 28mA Typ
Enable Function
Single 5V Supply
16-Lead QFN (4mm
脳
4mm) Package
The LT
廬
5526 is a low power broadband mixer optimized
for high linearity applications such as point-to-point data
transmission, cable infrastructure and wireless infrastruc-
ture systems. The device includes an internally matched
high speed LO amplifier driving a double-balanced active
mixer core. An integrated RF buffer amplifier provides
excellent LO-RF isolation. The RF and IF ports can be easily
matched across a broad range of frequencies for use in a
wide variety of applications.
The LT5526 offers a high performance alternative to
passive mixers. Unlike passive mixers which have conver-
sion loss and require high LO drive levels, the LT5526
delivers conversion gain at significantly lower LO input
levels and is much less sensitive to LO power level
variations.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Point-to-Point Data Communication Systems
Wireless Infrastructure
Cable Downlink Infrastructure
High Linearity Receiver Applications
TYPICAL APPLICATIO
High Signal Level Frequency Downconversion
V
CC
5V DC
EN
BIAS
OUTPUT POWER (dBm/TONE)
V
CC2
V
CC1
900MHz
LNA
900MHz
RF
+
140MHz
IF
+
VGA
ADC
RF
鈥?/div>
IF
鈥?/div>
GND
LT5526
LO
+
LO
鈥?/div>
LO INPUT
鈥?dBm
5526 TA01
U
IF Output Power and IM3 vs
RF Input Power (Two Input Tones)
0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?0
鈥?00
鈥?0
IM3
T
A
= 25擄C
f
IF
= 140MHz
f
RF
= 900MHz
f
LO
= 760MHz
P
LO
= 鈥?dBm
鈥?0
鈥?5
鈥?
RF INPUT POWER (dBm/TONE)
0
5526 TA02
U
U
P
OUT
5526f
1
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LT5526EUF相關(guān)型號(hào)PDF文件下載
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