Rainbow Electronics ATR0630 - Manual (Page 27)

27
4920A–GPS–01/06
ATR0630 [Preliminary]
Note: All other parameters as specified in Table 5-1 .
Table 5-1. Specification of GPS Crystals Appropriate for the Application Example Shown in
Figure 5-1 on page 25
Parameter Comment Min Typ Max Units
Frequency Characteristics
Fundamental frequency
Nominal frequency referenced to
25°C
23.104 MHz
Calibration tolerance Frequency at 23°C ±2°C 7.0 ±ppm
Frequency deviation Over operating temperature range 15.0 ±ppm
Temperature range Operating temperature range –40.0 +85.0 °C
Electrical
Load capacitance (CL) 18.5 19.5 pF
Equivalent Series Resistance (ESR)
Fundamental Specification 7 12 23
Ω
Table 5-2. Specification of GPS Crystals Appropriate for the Application Example Shown in
Figure 5-2 on page 25
Parameter Comment Min Typ Max Units
Equivalent Series Resistance (ESR)
Fundamental Specification 7 40
Ω
Table 5-3. Specification of GPS TCXOs Appropriate for the Application Example Shown in
Figure 5-3 on page 26
Parameter Comment Min Typ Max Units
Frequency Characteristics
Nominal Frequency
Nominal frequency referenced to
25°C
23.104 MHz
Frequency deviation Over operating temperature range 2.0 ±ppm
Temperature range Operating temperature range –40.0 +85.0 °C
Electrical
Output waveform DC coupled clipped sine wave
Output voltage
(peak-to-peak)
At minimum supply voltage 0.8 V
Output load capacitance Tolerable load capacitance 10 pF
Table 5-4. Specification of an External Reference Signal for the Application Example Shown
in
Figure 5-4 on page 26
Parameter Comment Min Typ Max Units
Signal Characteristics
Nominal Frequency 23.104 MHz
Waveform Sine wave or clipped sine wave
Amplitude Voltage peak-to-peak 0.6 0.8 1.0 V