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DA1016.003

31 October, 2000

TYPICAL APPLICATION

Crystal frequencies:

77.503 kHz for DCF77 Receiver,

60 kHz for WWVB (USA) and MSF (British) Receiver

40 kHz JG2AS (Japan) Receiver

Note 1: AGC Capacitor

DCF77 Receiver 0.47 to 1.0 uF

WWVB (USA), MSF (British) and JG2AS (Japan) 220 nF (external control of AON (=AGC on)is needed, for

more details see also DAEV1016)

AGC Amplifier

Demodulator

&

Comparator

Power Supply/Biasing

RFI

OUT

QI

QO

VSS

AGC

DEC

Receiver

output

Ferrite-

Antenna

Crystal

*

0.47…1 uF

AON (=AGC on)

VDD

1.4 V

47 nF

PDN

Note 1