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DESCRIPTIO
Two Independent Temperature Compensated
Schottky Diode RF Peak Detectors
45dB Channel-to-Channel Isolation at 2GHz
Wide Input Frequency Range: 300MHz to 11GHz*
Wide Input Power Range: 鈥?2dBm to 12dBm
Buffered Detector Outputs with Gain of 2x
Adjustable V
OUT
Starting Voltage
Wide V
CC
Range of 2.7V to 6V
Low Operating Current: <500碌A(chǔ)/Channel
Low Shutdown Current: <2碌A(chǔ)/Channel
4mm
脳
3mm DFN Package
The LTC
廬
5533 is a dual channel RF power detector for RF
applications operating in the 300MHz to 11GHz range.
Two independent temperature compensated Schottky di-
ode peak detectors and buffer amplifiers are combined in
a small 4mm
脳
3mm DFN package.
The RF input voltage is peak detected using on-chip
Schottky diodes. The detected voltage is buffered and
supplied to the V
OUT
pins. A power saving shutdown mode
reduces current to less than 2碌A(chǔ)/channel. The initial
output starting voltages can be precisely adjusted using
the V
OS
pins.
The LTC5533 operates with input power levels from
鈥?2dBm to 12dBm.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*Higher frequency operation is achievable with reduced performance. Consult factory for more
information.
APPLICATIO S
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PA Forward and Reverse Power Monitor
Dual PA Transmit Power Control
802.11a, b, g, 802.15, WiMAX
PA Linearization
Fixed Wireless Access
RF Power Alarm
Envelope Detector
TYPICAL APPLICATIO
300MHz to 11GHz RF Power Detectors
3600
LTC5533
V
CC
100pF
V
OS1
V
CC1
V
OUT1
V
OS1
V
CC2
0.1碌F
100pF
V
OS2
V
OUT2
V
OS2
RF
IN1
GND1
SHDN1
RF
IN2
GND2
SHDN2
5533 TA01
Output Voltage vs RF Input Power
3200
V
CC
= 3.6V
V
OS
= 0V
T
A
= 25擄C
39pF
V
OUT
OUTPUT VOLTAGE (mV)
RF1 INPUT
2800
2400
2000
1600
1200
800
400
39pF
RF2 INPUT
DISABLE ENABLE
(EXPOSED PAD)
0
鈥?8 鈥?4 鈥?0 鈥?6 鈥?2 鈥? 鈥? 0 4
RF INPUT POWER (dBm)
U
4GHz
1GHz
5GHz
500MHz
6GHz
8GHz
11GHz
10GHz
9GHz
8
12
5533 TA02
U
U
5533f
1
LTC5533相關(guān)型號(hào)PDF文件下載
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型號(hào)
版本
描述
廠商
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