LTC5505-2ES5#TRM Linear Technology, LTC5505-2ES5#TRM Datasheet

HF-Power Detector, RF Power Detectors

LTC5505-2ES5#TRM

Manufacturer Part Number
LTC5505-2ES5#TRM
Description
HF-Power Detector, RF Power Detectors
Manufacturer
Linear Technology
Datasheet

Specifications of LTC5505-2ES5#TRM

Pin Count
5
Screening Level
Industrial
Package Type
TSOT-23
Lead Free Status / Rohs Status
Not Compliant

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APPLICATIO S
FEATURES
TYPICAL APPLICATIO
Internal Schottky Diode RF Detector with Two Input
Power Ranges:
Wide Input Frequency Range: 300MHz to 3GHz
(LTC5505-1); 300MHz to 3.5GHz (LTC5505-2)
Temperature Compensated
Buffered Detector Output
Wide V
Low Operating Current: 0.5mA
Low Shutdown Current: <2 A
Low Profile (1mm) ThinSOT
Multimode Mobile Phone Products
PCS Devices
Wireless Data Modems
Wireless and Cable Infrastructure
RF Power Alarm
Envelope Detector
LTC5505-1, –28dBm to 18dBm
LTC5505-2, –32dBm to 12dBm
CC
Range of 2.7V to 6V
U
DISABLE ENABLE
TM
Package
U
RF
1
2
3
Dual Band Mobile Phone Tx Power Control
MOBILE PHONE
RF
GND
SHDN
LTC5505-X
IN
DSP
V
V
OUT
with Buffered Output and >40dB
CC
5
4
100
R1
C2
0.1 F
DESCRIPTIO
The LTC
tions operating in the 300MHz to 3.5GHz range. A tem-
perature compensated Schottky diode peak detector and
buffer amplifier are combined in a small 5-pin ThinSOT
package. The supply voltage range is optimized for opera-
tion 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 V
reduces supply current to less than 2 A.
The LTC5505-1 operates with input power levels from
power levels from –32dBm to 12dBm.
ThinSOT is a trademark of Linear Technology Corporation
–28dBm to 18dBm. The LTC5505-2 operates with input
, LTC and LT are registered trademarks of Linear Technology Corporation.
Li-Ion
0.3pF
C1
®
5505-X is an RF power detector for RF applica-
Tx PA MODULE
V
PC
CELL BAND
PCS BAND
LTC5505-1/LTC5505-2
BSE
OUT
RF Power Detector
U
pin. A power saving shutdown mode
Dynamic Range
DIPLEXER
5505 TA01
1
5505f

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LTC5505-2ES5#TRM Summary of contents

Page 1

... V reduces supply current to less than 2 A. 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 ...

Page 2

... LTC5505-1/LTC5505 ABSOLUTE AXI U RATI GS (Note GND .................................... –0.3V to 6.5V CC OUT RF Voltage LTC5505-1 ................................... (V LTC5505-2 ................................... (V SHDN Voltage to GND ................ –0. ...................................................................... 5mA VOUT Operating Temperature Range (Note 2) .. – Maximum Junction Temperature ......................... 125 C Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 C ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T unless otherwise noted ...

Page 3

... Input Resistance (LTC5505- Input Shunt Capacitance (LTC5505- Input Resistance (LTC5505- Input Shunt Capacitance (LTC5505-2) IN Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Specifications over the – operating temperature range are assured by design, characterization and correlation with statistical process controls ...

Page 4

... LTC5505-1 Typical Detector Characteristics, 1.85GHz 10000 SERIES TERMINATION – 1000 100 –30 –24 –18 –12 – INPUT POWER (dBm) LTC5505-2 Typical Detector Characteristics, 1.85GHz 10000 1000 100 –8 – –32 5505 G04 LTC5505-2 Typical Detector Characteristics, 3.5GHz 10000 1000 100 –8 –2 ...

Page 5

... Buffered and Level Shifted Detector Output OUT Voltage. V (Pin 5): Power Supply Voltage, 2. bypassed appropriately with ceramic capacitors GAIN COMPRESSION SHDN 30k + 130mV RF DET – 22k 60 A 150k 3 SHDN LTC5505-1/LTC5505-2 + BUFFER 4 V OUT – 30k 100 100 BIAS 5505 BD should CC 5505f 5 ...

Page 6

... Tx PA outputs. For example, a 0.3pF capacitor (C1) followed by a 100 resistor (R1) forms a coupling circuit with about a 20dB loss at the cellular band and 18dB loss at the PCS band, referenced to the LTC5505 input pin. For improved coupling accuracy, the C1 capacitor should be a high tolerance component ( 0.05pF.) ...

Page 7

... LTC DWG # 05-08-1635) 0.854 0.127 1.50 – 1.75 2.80 BCS (NOTE 4) PIN ONE 0.95 BSC 0.80 – 0.90 1.00 MAX 0.09 – 0.20 (NOTE 3) LTC5505-1/LTC5505-2 DIRECTIONAL COUPLER DIPLEXER 50 5505 TA02 2.90 BSC (NOTE 4) 0.30 – 0.45 TYP 5 PLCS (NOTE 3) 0.01 – 0.10 1 ...

Page 8

... LTC5505-1/LTC5505-2 RELATED PARTS PART NUMBER DESCRIPTION LT1618 Constant Current/Constant Voltage, 1.4MHz, High Efficiency Boost Regulator LTC1733 Standalone Li-Ion Linear Battery Charger LTC1734/ Li-Ion Linear Battery Charger in ThinSOT LTC1734L LTC1878 600mA I , 550kHz, Synchronous Step-Down OUT DC/DC Converter LT1932 Constant Current, 1.2MHz, High Efficiency ...

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