Z02215 Datasheet, PDF (56/74 Pages) Zilog, Inc. – Single Chip Modem with Integrated Controller, Data Pump, and Analog Front End

Z02215
Single Chip Modem with Integrated Controller, Data Pump, and AFE
50
C1=C2 to 2(C2)
VSS*
XTAL
100K
C2=20 pF Max.
EXTAL
VSS*
Figure 5. Oscillator Configuration
C₁, C₂ – The C values are dependent
on the load capacitance of the chosen
crystal. Refer to the Application Note
titled Crystal Oscillator for Embedded
Modems at:
http://www.zilog.com/pdfs/modem/
appnote_crystal.pdf
R = 100K W
* Device ground pin
Table 11. Suggested Crystal Specifications (C₁=C₂=20pF*, C₀=2pF)
Parameter
Temperature Range (Standard)
Temperature Range (Extended)
Nominal Frequency @ 25°C
Frequency Tolerance @ 25°C
Temperature Stability @ 0°C to 70°C
Calibration Mode
Shunt Capacitance (C₀)
Load Capacitance
Drive Level
Aging, per Year Max.
Oscillation Mode
Series Resistance
Q
* includes pin parasitics
Suggested reading:
IEEE JSSC p222-228 April 1980
IEEE JSSC p774-783 June 1988
Value
0°C to +70°C
–40°C to +85°C
24.576 MHz
±20 PPM
±25 PPM
Parallel Resonant
4 pF Max.
15 pF
1.5 mW max.
±5 PPM
Fundamental
25 Ω max.
70K
PS001907-0904
Operating Notes