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参数资料
| 型号： | MPC950FAR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 180 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP32 |
| 封装： | 7 X 7 MM, LQFP-32 |
| 文件页数： | 1/10页 |
| 文件大小： | 131K |
| 代理商： | MPC950FAR2 |
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MPC950/D
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
150
Low Voltage PLL Clock Driver
The MPC950 is a 3.3V compatible, PLL based clock driver device tar-
geted for high performance clock tree designs. With output frequencies of
up to 180MHz and output skews of 375ps the MPC950 is ideal for the
most demanding clock tree designs. The devices employ a fully differen-
tial PLL design to minimize cycle–to–cycle and long term jitter. This pa-
rameter is of significant importance when the clock driver is providing the
reference clock for PLL’s on board today’s microprocessors and ASiC’s.
The devices offer 9 low skew outputs, the outputs are configurable to
support the clocking needs of the various high performance microproces-
sors.
Fully Integrated PLL
Oscillator or Crystal Reference Input
Output Frequency up to 180MHz
Outputs Disable in High Impedance
Compatible with PowerPC, Intel and High Performance RISC Mi-
croprocessors
LQFP Packaging
Output Frequency Configurable
±100ps Typical Cycle–to–Cycle Jitter
Two selectable feedback division ratios are available on the MPC950
to provide input reference clock flexibility. The FBSEL pin will choose
between a divide by 8 or a divide by 16 of the VCO frequency to be
compared with the input reference to the MPC950. The internal VCO is
running at either 2x or 4x the high speed output, depending on configura-
tion, so that the input reference will be either one half, one fourth or one
eighth the high speed output.
The MPC950 provides an external test clock input for scan clock distribution or system diagnostics. In addition the REF_SEL
pin allows the user to select between a crystal input to an on–board oscillator for the reference or to chose a TTL level oscillator
input directly. The on–board crystal oscillator requires no external components beyond a series resonant crystal.
The MPC950 is fully 3.3V compatible and require no external loop filter components. All inputs accept LVCMOS or LVTTL
compatible levels while the outputs provide LVCMOS levels with the capability to drive terminated 50
transmission lines. Select
inputs do not have internal pull–up/pull–down resistors and thus must be set externally. For series terminated 50
lines, each of
the MPC950 outputs can drive two traces giving the device an effective fanout of 1:18. The device is packaged in a 7x7mm
32–lead LQFP package to provide the optimum combination of board density and performance.
PowerPC is a trademark of International Business Machines Corporation. Pentium is a trademark of Intel Corporation.
Rev 7
2
MPC950
LOW VOLTAGE
PLL CLOCK DRIVER
FA SUFFIX
32–LEAD LQFP PACKAGE
CASE 873A–02
See Upgrade Product – MPC9350
相关PDF资料 |
PDF描述 |
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| MPC992FA | 375 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP32 |
| MPC992FA | 375 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP32 |
| MPD300-TR | SILICON, STABISTOR DIODE, DO-35 |
| MPN-7315-C11 | 150 V, SILICON, PIN DIODE |
| MPTE-15C | 1500 W, BIDIRECTIONAL, SILICON, TVS DIODE, DO-201AD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC951 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:LOW VOLTAGE PLL CLOCK DRIVER |
| MPC951FA | 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: |
| MPC951FAR2 | 制造商:Motorola Inc 功能描述: |
| MPC952 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:LOW VOLTAGE PLL CLOCK DRIVER |
| MPC953 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:LOW VOLTAGE PLL CLOCK DRIVER |
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