参数资料
型号: SPEAR-09-P022
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 1 CHANNEL(S), 1000M bps, I2C BUS CONTROLLER, PBGA420
封装: 23 X 23 MM, 1.81 MM HEIGHT, ROHS COMPLIANT, PLASTIC, BGA-420
文件页数: 20/40页
文件大小: 328K
代理商: SPEAR-09-P022
SPEAR-09-P022
Main blocks
4.3.2
Crystal equivalent model
Figure 4.
Crystal equivalent model
1.
Co is the parasitic capacitance of the crystal package
2.
Cl1 and Cl2 are the capacitance on each resonator PAD
4.4
RTC oscillator
4.4.1
RTC crystal connection
Figure 5.
RTC crystal oscillator
Table 10.
Main oscillator characteristics
Supplier
Rm(Ohms)
Lm(mH)
Cm(fF)
Co(pF)
Q(K)
Epson (E31821)
9.3
5.9
4.8
1.7
120
Raltron (M3000)
9.6
2.6
10.8
3.5
45
KSS (KSS3KF)
5
3.2
8.7
2.7
121
VDD2V5
Co
Cl1
Cl2
Cm
Rm
Lm
Xi
Xo
GND
27 pF
30 MHz
Xi
Xo
27 pF
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