atr0603 ATMEL Corporation, atr0603 Datasheet - Page 9

• Manufacturer Part Number: atr0603
• Description: Gps Front-end Ic
• Manufacturer: ATMEL Corporation

4950B–GPS–11/06
Figure 10-2. Recommended IF Filter: Layout versus Schematic
Note:
Table 10-1.
Parameter
Nominal frequency
Frequency deviation
Temperature range
Output waveform
Output voltage (peak to peak) At minimum supply voltage
Current
Output load capacitance
Mutual inductance between the four inductors Lc to Lf plays an important role in the IF filter char-
acteristics. In any design, the layout arrangement shown in
closely as possible. Measurements: A = 2.8 mm; B = 1.4 mm
Lc to Lf: Wire-wound SMD inductors, size 0603 (see
Specifications of Recommended TCXO (Rakon; IT5325BE 16.367667 MHz)
14
Ca
Lc
Le
15
16
A
Cb
17
Comment
Nominal frequency referenced to 25°C
Within operating temperature range
Operating temperature range
DC-coupled clipped sine wave
At maximum supply voltage
Tolerable load capacitance
Ld
Lf
B
ATR0603 [Preliminary]
Table 11-1 on page
Lc
14
Ca
Ld
Figure 10-2
15
VCC
Min.
–40
0.8
Le
9
16
should be followed as
16.367667
Cb
Lf
Nominal
11)
17
Max.
±2.5
1.5
85
11
MHz
Unit
ppm
mA
°C
pF
V
9