AK8859VQ Datasheet, PDF (12/73 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8859VQ]
[4.4.4.] Crystal circuit block
Parameter
Symbol Min. Typ.
Max. Unit
Notes
Frequency
f0
24.576
MHz
Frequency tolerance
Δf / f
±100 ppm
Load capacitance
CL
15
pF
Effective equivalent resistance
Re
100
Ω
(*1)
Crystal parallel capacitance
CO
0.9
pF
XTI terminal external connection
load capacitance
CXI
22
pF
If CL=15pF
XTO terminal external connection _CXO
22
load capacitance
pF
If CL=15pF
(*1) Effective equivalent resistance generally may be taken as Re = R1 x (1+CO/CL)², where R1 is the
crystal series equivalent resistance.
Example connection
Rf
XTI pin
CXI = 22pF
AK8859VQ internal circuit
XTO pin
Rd (* 2)
External circuit
CXO = 22pF
(*2) Determine need for and appropriate value of limiting resistance (Rd) in accordance with the crystal
specifications.
MS1178-E-00
AKM Confidential
- 12 -
2010/04