Rainbow Electronics MAX1471 User Manual

Page 15

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nect AV

DD

and DV

DD

together. In both cases, bypass

DV

DD

and HV

IN

with a 0.01µF capacitor and AV

DD

with

a 0.1µF capacitor. Place all bypass capacitors as close
to the respective supply pin as possible.

MAX1471

315MHz/434MHz Low-Power, 3V/5V

ASK/FSK Superheterodyne Receiver

______________________________________________________________________________________

15

Figure 5. Generating Data-Slicer Threshold Using the Peak Detectors

MAXIMUM PEAK

DETECTOR

MAX1471

DATA

SLICER

PDMAXA
PDMAXF

ADATA
FDATA

C

MINIMUM PEAK

DETECTOR

PDMINA
PDMINF

R

R

C

Figure 6. Peak-Detector Track Enable

TRK_EN = 1

MINIMUM PEAK

DETECTOR

PDMINA
PDMINF

TRK_EN = 1

MAXIMUM PEAK

DETECTOR

BASEBAND

FILTER

PDMAXA
PDMAXF

MAX1471

TO SLICER
INPUT

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