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LTC5505-2

Linear Technology
Part Number LTC5505-2
Manufacturer Linear Technology
Description (LTC5505-1/-2) RF Power Detector
Published Oct 3, 2007
Detailed Description www.DataSheet4U.com LTC5505-1/LTC5505-2 RF Power Detector with Buffered Output and >40dB Dynamic Range FEATURES s DES...
Datasheet PDF File LTC5505-2 PDF File

LTC5505-2
LTC5505-2

Overview
www.
DataSheet4U.
com LTC5505-1/LTC5505-2 RF Power Detector with Buffered Output and >40dB Dynamic Range FEATURES s DESCRIPTIO s s s s s s s Internal Schottky Diode RF Detector with Two Input Power Ranges: LTC5505-1, –28dBm to 18dBm LTC5505-2, –32dBm to 12dBm Wide Input Frequency Range: 300MHz to 3GHz (LTC5505-1); 300MHz to 3.
5GHz (LTC5505-2) Temperature Compensated Buffered Detector Output Wide VCC Range of 2.
7V to 6V Low Operating Current: 0.
5mA Low Shutdown Current: <2µA Low Profile (1mm) ThinSOTTM Package The LTC®5505-X is an RF power detector for RF applications operating in the 300MHz to 3.
5GHz range.
A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small 5-pin ThinSOT package.
The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.
The RF input voltage is peak detected using an on-chip Schottky diode.
The detected voltage is buffered and supplied to the VOUT pin.
A power saving shutdown mode reduces supply current to less than 2µA.
The LTC5505-1 operates with input power levels from –28dBm to 18dBm.
The LTC5505-2 operates with input power levels from –32dBm to 12dBm.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation U APPLICATIO S s s s s s s Multimode Mobile Phone Products PCS Devices Wireless Data Modems Wireless and Cable Infrastructure RF Power Alarm Envelope Detector TYPICAL APPLICATIO Dual Band Mobile Phone Tx Power Control R1 100Ω RF 1 2 DISABLE ENABLE 3 LTC5505-X VCC 5 RFIN GND SHDN VOUT 4 C1 0.
3pF Tx PA MODULE C2 0.
1µF Li-Ion CELL BAND DIPLEXER PCS BAND MOBILE PHONE DSP VPC 5505 TA01 BSE U 5505f U 1 LTC5505-1/LTC5505-2 ABSOLUTE (Note 1) AXI U RATI GS U W U PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW RFIN 1 GND 2 SHDN 3 4 VOUT 5 VCC VCC, VOUT to GND .
–0.
3V to 6.
5V RF Voltage LTC5505-1 (VCC – 2...


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