Rainbow-electronics ATAR862-8 User Manual download pdf (Page 10)

10

ATAR862-8

4589B–4BMCU–02/03

Figure 7. FSK Application Circuit

CLK

PA_ENABLE

ANT2

ANT1

ENABLE

GND

VS

XTAL

21

22

23

241

2

3

4

VCO

LF

CP

PFD

f

32

XTO

PLL

PA

f

4

Power up/down

C3

VS

C1

VS

C4

Loop

Antenna

L1

XTAL

C2

C5

9

11

6

5

8

7

10

12

BP20/NTE

VDD

BP42/T2O

VSS

15

16

17

13

19

20

18

17

OSC1

OSC2

BP60/T3O

BP50/INT6

BP63/T3I

BP23

NRESET

BP41/T2I/VMI

BP43/SD/

INT3

BP52/INT1

BP53/INT1

BP40/SC/INT3

VS

S1

S2

S3

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 105 106

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