LTC5564HUDTRPBF Ver la hoja de datos (PDF) - Linear Technology

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LTC5564HUDTRPBF

UltraFast™ 7ns Response Time 15GHz RF Power Detector with Comparator

Linear Technology 

LTC5564

APPLICATIONS INFORMATION

Applications

The LTC5564 can be used as a self-standing signal strength

measurement receiver for a wide range of input signals

from –24dBm to 16dBm and frequencies from 600MHz

to 15GHz.

In addition to power detection, the LTC5564 may be used

as a demodulator for AM and ASK modulated signals.

Depending on the application the RSSI may be split into

two branches to provide AC-coupled data (e.g., audio) and

a DC-coupled RSSI output for signal strength measure-

ment and AGC.

47pF

FROM RF MATCHING

NETWORK/ANTENNA

VCC

1

RFIN

11

15

12

VCCP

VCCRF

LTC5564

10

VOUT

DETECT

VOLTAGE

1000pF

10pF

3, 4, 17

VCCA

GND

8

G1

VCOMP LEN VREF G0

13 5 + 14 7

DETECT

OVERVOLTAGE

EVENT

µC

5564 F04

Figure 4. 600MHz to 15GHz Power Detector

15GHz

RFIN

VCC

1000pF

10pF

VREF

100pF

VCOMP

2.2pF

17 16 15 14 13

VCC

NC VCCRF VREF VCOMP

1

RFIN

12

VCCA

0.5pF

2 NC

3

GND

LTC5564

11

VCCP

VOUT 10

10pF

68Ω

4 GND

NC 9 100pF

LEN VOUTADJ G0 G1

LEN

VOUTADJ

56

7

8

G1

G0

10k

10k 10k

5564 F05

1000pF

VOUT

Figure 5. Demo Board Schematic Optimized for 15GHz

5564fc

12

For more information www.linear.com/LTC5564

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