DC489A-A datasheet, PDF - EEWORLD Datasheet

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DC489A-A: Descriptioneval board for ltc5507es6; CategoryDevelopment board/suite/development tools; File Size92KB，2 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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eval board for ltc5507es6

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August 2, 2002

DC489A DEMO BOARD QUICK START GUIDE

INTRODUCTION

The DC489A demo board is used to evaluate the LTC5507 RF power detector with integrated output

buffer and voltage reference. The LTC5507 converts an RF input signal at pin 6 (RF) to a DC voltage at

pin 3 (Vout). The RF input frequency range is 100 KHz to 1000 MHz. The maximum input power is 16

dBm. The DC output voltage at Vout with no RF signal present at the input is typically 260mV. When

the RF signal is applied, the DC output voltage increases proportionately.

The optional 68Ω (R1) termination resistor is not placed on the PCB. Capacitors C1 and C4 are 0.1

µF

for low frequency tests and evaluation (100 KHz to 1 MHz). For higher frequencies, C1 and C4 should

be .01

µF

or less. For frequencies around 800 to 1000 MHz, a 39 pF value is suggested.

A logic HIGH at pin 1 of jumper JP1 enables the part. The jumper inserted in the left position provides

logic HIGH (IC enabled). The jumper inserted in the right position provides logic LOW (IC disabled).

The DC489A demo board is easily set up for evaluating the LTC5507 RF power detector performance.

Follow the procedures outlined below and make the connections on the attached diagram for proper

operation.

Connect a positive DC power supply (2.7V to 6V) to E1. Connect the power supply ground to E3 or

E5. Connect J1 to the RF signal generator via coaxial cable with an SMA connector. It is common

practice to include a 3dB pad to minimize reflections back into the signal generator.

The part can be shutdown via switch JP1. When JP1 is connected to ground, the part will be in

shutdown. When JP1 is connected to VCC via the 22k resistor the part will be enabled. A pulse

generator can also control the shutdown terminal, E4, in order to characterize turn-on delay after

shutdown. To do this, set JP1 to the enable position. Connect a 50Ω termination from E4 to ground.

Connect a pulse generator to E4 via a coaxial cable.

With JP1 set to the enable position, apply an RF input signal and measure the DC output voltage at

E2.

LTC CONFIDENTIAL

DC489A-A Related Products

	DC489A-A	LTC5507ES6#TRPBF	LTC5507ES6#TR	LTC5507ES6#TRM	LTC5507ES6#TRMPBF	DC489A-B
Description	eval board for ltc5507es6	IC detec RF 100khz-1ghz tsot23-6	IC detec RF 100khz-1ghz tsot23-6	IC detec RF 100khz-1ghz tsot23-6	IC RF DETECT 100KHZ-1GHZ TSOT23	BOARD DEMO FOR LTC5507ES6
Brand Name	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology	-
Is it Rohs certified?	-	conform to	incompatible	incompatible	conform to	-
Parts packaging code	-	SOT	SOT	SOT	SOT	-
Contacts	-	6	6	6	6	-
Manufacturer packaging code	-	S6	S6	S6	S6	-
Reach Compliance Code	-	compliant	not_compliant	not_compliant	compliant	-
ECCN code	-	EAR99	EAR99	EAR99	EAR99	-
Characteristic impedance	-	50 Ω	50 Ω	50 Ω	50 Ω	-
structure	-	COMPONENT	COMPONENT	COMPONENT	COMPONENT	-
Maximum input power (CW)	-	14 dBm	14 dBm	14 dBm	14 dBm	-
Minimum input power (CW)	-	-34 dBm	-34 dBm	-34 dBm	-34 dBm	-
JESD-609 code	-	e3	e0	e0	e3	-
Maximum operating frequency	-	1000 MHz	1000 MHz	1000 MHz	1000 MHz	-
Minimum operating frequency	-	0.1 MHz	0.1 MHz	0.1 MHz	0.1 MHz	-
Maximum operating temperature	-	85 °C	85 °C	85 °C	85 °C	-
Minimum operating temperature	-	-40 °C	-40 °C	-40 °C	-40 °C	-
Output polarity	-	POSITIVE	POSITIVE	POSITIVE	POSITIVE	-
RF/Microwave Device Types	-	LINEAR DETECTOR	LINEAR DETECTOR	LINEAR DETECTOR	LINEAR DETECTOR	-
Terminal surface	-	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	-
Base Number Matches	-	1	1	1	1	-

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