ATR0601_06 ATMEL [ATMEL Corporation], ATR0601_06 Datasheet - Page 9

• Manufacturer Part Number: ATR0601_06
• Description: GPS Front-end IC
• Manufacturer: ATMEL [ATMEL Corporation]

10. Application Circuit
Figure 10-1. Application Example Using a GPS Crystal with ESR
4866G–GPS–11/06
LNA section (opt.)
47pF
1.5pF
4.7nH
10nF
ATR0610
Reference frequency: Application #1
27
X1
B4060
SAW
PU XTO
PU RF
Note:
Figure 10-2. Application Example Using a GPS Crystal with ESR
Note:
47pF
82pF
47pF
1.3pF
1.3pF
5.6nH
17
18
10
Please consider the recommended IF-filter layout, shown in
The external series resistor R1 has to be selected depending on the typical value of the crystal
ESR. Please refer to Application Note “ATR0601: Crystal and TXCO selection”.
11
6
3
5
4
NXTO
PUxto
PUrf
NRF
NX
RF
XTO
X
100nF
100nF
100nF
(Please see
PMSS
Logic
Reference frequency: Application #2
Table 10-2 on page
4.7nF
5pF
VCO
XTO
PLL
R1
68
X1
5pF
47pF
82pF
47pF
typ
= 12 (Please see
12)
6
3
5
4
NXTO
NX
XTO
X
Table 10-1 on page
Figure 10-5 on page
A
A
D
D
typ
1
12
SDI
SH
SC
SL
ATR0601
21
22
23
24
11.
11)
Data out "low"
Data out "high"
Sample clock
9