8
4983A–IND–02/07
ATA8403
Figure 4-4. FSK Application Circuit
ATARx9x
ATA8403
CP
Power up/down
PDF
64
5
6
7
1
VDD
BPXY
20
VSS
VS
8
4
3
2
XTAL XTAL
VS
VS
VS
GND
ENABLE
ANT1
L1
C1
C5
C4
C3
Loop
Antenna
C2
ANT2
PA_ENABLE
OSC1
BPXY
BPXY
BPXY
S1
S2
7
CLK
1
f
LF
PA VCO
PLL
XTO
4
f
18
BP42/T2O
