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| 型号： | MPC92433AER2 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 1428 MHz, OTHER CLOCK GENERATOR, PQFP48 |
| 封装： | ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 1/20页 |
| 文件大小： | 412K |
| 代理商： | MPC92433AER2 |
Freescale Semiconductor, Inc., 2005. All rights reserved.
MPC92433
Rev 2, 06/2005
Freescale Semiconductor
Technical Data
1428 MHz Dual Output LVPECL
Clock Synthesizer
The MPC92433 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
42.50 MHz to 1428 MHz and the support of two differential PECL output signals,
the device meets the needs of the most demanding clock applications.
Features
42.50 MHz to 1428 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
Typical Applications
Programmable clock source for server, computing, and telecommunication systems
Frequency margining
Oscillator replacement
The MPC92433 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 purposes.
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 2856 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 seven division
ratios (2, 4, 6, 8, 12, 16, 32). This divider extends the performance of the part while providing a 50
duty cycle. The high-
frequency outputs, 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.
MPC92433
1428 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
相关PDF资料 |
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| MPC92433FA | 1428 MHz, OTHER CLOCK GENERATOR, PQFP48 |
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| MPC92469FA | 400 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| MPC92469AC | 400 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| MPC92474FA | 700 MHz, OTHER CLOCK GENERATOR, PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MPC92439ACR2 | 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 |
| MPC92439EI | 功能描述:时钟合成器/抖动清除器 FSL 900MHz LVPECL Freq. Synthesizer 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 |
| MPC92439EIR2 | 功能描述:时钟合成器/抖动清除器 FSL 900MHz LVPECL Freq. Synthesizer 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 |
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