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參數(shù)資料
| 型號(hào)： | MPC9824FA |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.80 MM PITCH, MS-026BBA, LQFP-32 |
| 文件頁(yè)數(shù)： | 6/11頁(yè) |
| 文件大?。?/td> | 638K |
| 代理商： | MPC9824FA |
Advanced Clock Driver Devices
4
Freescale Semiconductor
MPC9824
MPC9824 OPERATION
Crystal Oscillator
The MPC9824 features a fully integrated Pierce oscillator
to minimize system implementation costs. The MPC9824
may be operated with a 25 MHz crystal without other compo-
nents. For operation without external components, the crystal
selection should be of a 25 MHz parallel resonant type with a
load specification of CL = 10 pF. See Table 4 for complete
crystal specifications.
If more precise frequency control is desired, the addition of
capacitors from each of the XTAL_IN and XTAL_OUT pins to
ground may be used to trim the frequency as shown in Figure
3. In this case the recommended crystal should have a CL =
18 pF.
In either case the crystal should be located as close to the
MPC9824 XTAL_IN and XTAL_OUT pins as possible to
minimize any board level parasitic capacitance.
Figure 3 Crystal with Trim Caps
*NOTE: These are recommended values and are subject to change due to specific crystal paramter and board layout. Refer to
ICS Application Notes for futher information on the crystal selection.
Power-Supply Bypassing
The MPC9824 should have all VDD pins bypassed with
0.01 F capacitors and a minimum of one 1.0 F capacitor for
the overall package. All capacitors should be located as close
to the package as possible.
An external RC filter from VDD to VDDA is recommended as
shown in Figure 4.
Figure 4. Power Supply Filter
Table 4. Crystal Specifications
Parameter
Value
Value (with trim caps)
Crystal Cut
Fundamental AT Cut
Resonance
Parallel Resonance
Shunt Capacitance (CO)
5–7 pF
Load Capacitance (CL)
18 pF
Equivalent Series Resistance (ESR)
20–50
Ω
20–50
Ω
VDDA
VDD
MPC9824
C1, C2 = 0.01...0.1 μF
VDD
CF = 22 μF
RF = 10-15 Ω
C2
C1
MPC9824
Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
NETCOM
IDT Clock Generator for PowerQUICC and PowerPC Microprocessors and Microcontrollers
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
MPC9824
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC9850 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Clock Generator for PowerQUICC III |
| MPC9850VF | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MPC9850VM | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MPC9850VMR2 | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MPC9855 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Clock Generator for PowerQUICC and PowerPC Microprocessors |
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