AK8858 查看數據表（PDF） - Asahi Kasei Microdevices

零件编号

产品描述 (功能)

比赛名单

AK8858

PS/SD Multi Format Video Decoder

Asahi Kasei Microdevices 

[AK8858]

[4.4.6] Crystal circuit block

Parameter

Frequency

Frequency tolerance

Symbol Min Typ Max Units

f0

24.576

MHz

Δf / f

±100 ppm

Notes

Load capacitance

Effective equivalent resistance

CL

15

pF

Re

100 Ω

(*1)

Crystal parallel capacitance

CO

0.9

pF

XTI terminal external connection load capacitance

CXI

22

pF CL=15pF

XTO terminal external connection load capacitance

CXO

22

pF CL=15pF

(*1) Effective equivalent resistance generally may be taken as Re = {R1 x (1+CO/CL)2}. (R1 is the crystal series

equivalent resistance)

Example connection

Rf

XTI pin

CXI = 22pF

XTO pin

Rd (* 2)

AK8858 internal circuit

External circuit

CXO = 22pF

(*2) Determine need for and appropriate value of limiting resistance (Rd) in accordance with the crystal

specifications.

MS1230-E-00

- 14 -

2010/9

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