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LTC5535 Datasheet(PDF) 1 Page - Linear Technology

Part No. LTC5535
Description  Precision 600MHz to 7GHz, RF Detector with Adjustable Gain and 12MHz Baseband Bandwidth
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC5535 Datasheet(HTML) 1 Page - Linear Technology

 
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LTC5535
1
5535f
TYPICAL APPLICATIO
APPLICATIO S
DESCRIPTIO
FEATURES
802.11a, 802.11b, 802.11g, 802.15, 802.16
Multimode Mobile Phone Products
Optical Data Links
Wireless Data Modems
Wireless and Cable Infrastructure
RF Power Alarm
Envelope Detector
Temperature Compensated Internal Schottky
Diode RF Detector
Wide Input Frequency Range: 600MHz to 7GHz*
Wide Input Power Range: –32dBm to 10dBm
External Gain Control
Precision VOUT Offset Control
Low Starting Voltage: 200mV for Gain = 2
Wide VCC Range of 2.7V to 5.5V
Low Operating Current: 2mA
Available in a Low Profile (1mm) SOT-23 Package
Precision 600MHz to 7GHz,
RF Detector with
Adjustable Gain and
12MHz Baseband Bandwidth
The LTC
®5535 is an RF power detector for RF applications
operating in the 600MHz to 7GHz range. A temperature
compensated Schottky diode peak detector and output
amplifier are combined in a small ThinSOT
TM package. The
supply voltage range is optimized for operation from a
single cell lithium-ion or three cell NiMH battery.
The RF input voltage is peak detected using an on-chip
Schottky diode. The detected voltage is buffered and
supplied to the VOUT pin.
The LTC5535 output amplifier gain is set via external
resistors. The initial starting voltage of 200mV can be
precisely adjusted using the VOS pin.
The LTC5535 operates with input power levels from
–32dBm to 10dBm. The 12MHz baseband bandwidth is
much higher than that of previous Schottky detector
products.
, LTC and LT are registered trademarks of Linear Technology Corporation.
600MHz to 7GHz RF Power Detector
LTC5535
1
2
3
6
5
4
100pF
0.1µF
VCC
VOS
REFERENCE
VCC
VOUT
RFIN
GND
VOS
33pF
5535 TA01
RF
INPUT
VM
RA
RB
Output Voltage vs RF Input Power
ThinSOT is a trademark of Linear Technology Corporation.
*Higher frequency operation is achievable with reduced performance. Consult factory for more
information.
RF INPUT POWER (dBm)
–32
800
3200
3600
–20 –16
–8
0
–4
5535 TA02
2400
1600
400
2800
0
2000
1200
–28 –24
–12
48
12
VCC = 3.6V
TA = 25°C
GAIN = 2
VOS = 0V
2GHz
7GHz
600MHz
1GHz
5GHz
6GHz
4GHz


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