ATA5757 ATMEL Corporation, ATA5757 Datasheet - Page 13

• Manufacturer Part Number: ATA5757
• Description: (ATA5756 / ATA5757) UHF ASK/FSK TRANSMITTER
• Manufacturer: ATMEL Corporation

Figure 11. FSK Application Circuit
4702H–RKE–09/04
Antenna
Loop
C2
C1
S1
S2
VS
L1
OSC1
ANT2
ANT1
FSK
BPXY
BPXY
BPXY
ASK
CLK
2
1
3
4
5
7
ATARx9x
ATA5756/ATA5757
OR
f
8
PA
EN
EN
PLL
VCO
f
Power up/down
PFD
CP
LF
24/
32
XTO
Ampl. OK
ATA5756/ATA5757
10
1
20
GND
9
VS
8
7
6
VSS
VDD
BPXY
ENABLE
XTO1
XTO2
C3
VS
C5
XTAL
VS
C4
13