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参数资料
| 型号： | MPC92432FAR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 1360 MHz, OTHER CLOCK GENERATOR, PQFP48 |
| 封装： | LQFP-48 |
| 文件页数： | 1/20页 |
| 文件大小： | 412K |
| 代理商： | MPC92432FAR2 |
MPC92432
Rev 2, 06/2005
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc., 2005. All rights reserved.
1360 MHz Dual Output LVPECL Clock
Synthesizer
The MPC92432 is a 3.3 V compatible, PLL based clock synthesizer targeted
for high performance clock generation in mid-range to high-performance
telecom, networking, and computing applications. With output frequencies from
21.25 MHz to 1360 MHz and the support of two differential PECL output signals,
the device meets the needs of the most demanding clock applications.
Features
21.25 MHz to 1360 MHz synthesized clock output signal
Two differential, LVPECL-compatible high-frequency outputs
Output frequency programmable through 2-wire I2C bus or parallel interface
On-chip crystal oscillator for reference frequency generation
Alternative LVCMOS compatible reference clock input
Synchronous clock stop functionality for both outputs
LOCK indicator output (LVCMOS)
LVCMOS compatible control inputs
Fully integrated PLL
3.3-V power supply
48-lead LQFP
48-lead Pb-free package available
SiGe Technology
Ambient temperature range: –40°C to +85°C
Applications
Programmable clock source for server, computing, and telecommunication systems
Frequency margining
Oscillator replacement
Functional Description
The MPC92432 is a programmable high-frequency clock source (clock synthesizer). The internal PLL generates a high-
frequency output signal based on a low-frequency reference signal. The frequency of the output signal is programmable and can
be changed on the fly for frequency margining purpose.
The internal crystal oscillator uses the external quartz crystal as the basis of its frequency reference. Alternatively, a LVCMOS
compatible clock signal can be used as a PLL reference signal. The frequency of the internal crystal oscillator is divided by a
selectable divider and then multiplied by the PLL. The VCO within the PLL operates over a range of 1360 to 2720 MHz. Its output
is scaled by a divider that is configured by either the I2C or parallel interfaces. The crystal oscillator frequency fXTAL, the PLL pre-
divider P, the feedback-divider M, and the PLL post-divider N determine the output frequency. The feedback path of the PLL is
internal.
The PLL post-divider N is configured through either the I2C or the parallel interfaces, and can provide one of six division ratios
(2, 4, 8, 16, 32, 64). This divider extends the performance of the part while providing a 50% duty cycle. The high-frequency out-
puts, QA and QB, are differential and are capable of driving a pair of transmission lines terminated 50 to VCC – 2.0 V. The second
high-frequency output, QB, can be configured to run at either 1x or 1/2x of the clock frequency or the first output (QA). The positive
supply voltage for the internal PLL is separated from the power supply for the core logic and output drivers to minimize noise
induced jitter.
The configuration logic has two sections: I2C and parallel. The parallel interface uses the values at the M[9:0], NA[2:0], NB,
and P parallel inputs to configure the internal PLL dividers. The parallel programming interface has priority over the serial I2C
interface. The serial interface is I2C compatible and provides read and write access to the internal PLL configuration registers.
The lock state of the PLL is indicated by the LVCMOS-compatible LOCK output.
1. FA suffix: leaded terminations.
2. AE suffix: lead-free, EPP and RoHS-compliant.
MPC92432
1360 MHz LOW VOLTAGE
CLOCK SYNTHESIZER
FA SUFFIX(1)
48-LEAD LQFP PACKAGE
CASE 932-03
AE SUFFIX(2)
48-LEAD LQFP PACKAGE
Pb-FREE PACKAGE
CASE 932-03
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC92433 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:1428 MHz Dual Output LVPECL Clock Synthesizer |
| MPC92433AE | 功能描述:时钟合成器/抖动清除器 FSL 1428MHz Dual Out put LVPECL Clock Syn RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| MPC92433AER2 | 功能描述:时钟合成器/抖动清除器 FSL 1428MHz Dual Out put LVPECL Clock Syn RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| MPC92439 | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:900MHz, Low Voltage, LVPECL Clock Syntheesizer |
| MPC92439AC | 功能描述:IC SYNTHESIZER LVPECL 32-LQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
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