14

ATSAM9753

1774D–DRMSD–11/02

Crystal

Compensation and

LFT Filter

Figure 7. Recommended Crystal Compensation and LFT Filter

(1), (2), (3), (4)

Notes:

1. All GND pins should be connected to GND plane below IC.

2. All VCC pins should be connected to VCC plane below IC.

3. X1, C1, C2, C3, C4, R1 connections should be short and shielded. The GND return

from C1, C4, C3, should be the GND plane from ATSAM9753.

4. 0.1 µF decoupling caps should be placed at each corner of the IC. An additional 10

µF capacitor should be placed close to X1.

X1

X2

LFT

98

99

100

X1

GND

C4

22 pF

C1

22 pF

C2

2.2 nF

R1

100

Ω

C3

10 nF