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参数资料
| 型号： | MPC9230FN |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 750 MHz, OTHER CLOCK GENERATOR, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 1/16页 |
| 文件大小： | 795K |
| 代理商： | MPC9230FN |
DATA SHEET
MPC9230 REVISION 8 MARCH 29, 2010
1
2010 Integrated Device Technology, Inc.
800MHz Low Voltage PECL Clock Synthesizer
MPC9230
The MPC9230 is a 3.3 V compatible, PLL based clock synthesizer targeted for high perfor-
mance clock generation in mid-range to high-performance telecom, networking and computing
applications. With output frequencies from 50 MHz to 800 MHz(1) and the support of differential
PECL output signals the device meets the needs of the most demanding clock applications.
Features
50 MHz to 800 MHz(1) synthesized clock output signal
Differential PECL output
LVCMOS compatible control inputs
On-chip crystal oscillator for reference frequency generation
Alternative LVCMOS compatible reference clock input
3.3 V power supply
Fully integrated PLL
Minimal frequency overshoot
Serial 3-wire programming interface
Parallel programming interface for power-up
32-lead LQFP and 28-lead PLCC packaging
32-lead and 28-lead Pb-free package available
SiGe Technology
Ambient temperature range -40
°C to +85°C
Pin and function compatible to the MC12430
Functional Description
The internal crystal oscillator uses the external quartz crystal as the basis of its frequency reference. The frequency of the internal crystal
oscillator is divided by 16 and then multiplied by the PLL. The VCO within the PLL operates over a range of 800 to 1600 MHz.(1) Its output is
scaled by a divider that is configured by either the serial or parallel interfaces. The crystal oscillator frequency fXTAL, the PLL feedback-divider
M and the PLL post-divider N determine the output frequency.
The feedback path of the PLL is internal. The PLL adjusts the VCO output frequency to be M/4 times the external input reference frequency.
Note that for some values of M (either too high or too low) the PLL will not achieve phase lock. The PLL will be stable if the VCO frequency is
within the specified VCO frequency range (800 to 1600 MHz(1)). The M-value must be programmed by the serial or parallel interface.
The PLL post-divider N is configured through either the serial or the parallel interfaces, and can provide one of four division ratios (1, 2, 4,
or 8). This divider extends performance of the part while providing a 50% duty cycle. The output driver is driven differentially from the output
divider, and is capable of driving a pair of transmission lines terminated 50
to VCC – 2.0 V. 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: serial and parallel. The parallel interface uses the values at the M[8:0] and N[1:0] inputs to configure
the internal counters. It is recommended on system reset to hold the P_LOAD input LOW until power becomes valid. On the LOW-to-HIGH
transition of P_LOAD, the parallel inputs are captured. The parallel interface has priority over the serial interface. Internal pullup resistors are
provided on the M[8:0] and N[1:0] inputs and prevent the LVCMOS compatible control inputs from floating.
The serial interface centers on a fourteen bit shift register. The shift register shifts once per rising edge of the S_CLOCK input. The serial
input S_DATA must meet setup and hold timing as specified in the AC Characteristics section of this document. The configuration latches will
capture the value of the shift register on the HIGH-to-LOW edge of the S_LOAD input. See the programming section for more information. The
TEST output reflects various internal node values, and is controlled by the T[2:0] bits in the serial data stream. In order to minimize the PLL
jitter, it is recommended to avoid active signal on the TEST output.
1. The VCO frequency range of 800–1600 MHz is available at an ambient temperature range of 0 to 70°C. At –40 to +85°C, the VCO frequency (output
frequency) is limited to max. 1500 MHz (750 MHz).
MPC9230
800 MHz LOW VOLTAGE
CLOCK SYNTHESIZER
FN SUFFIX
28-LEAD PLCC PACKAGE
CASE 776-02
FA SUFFIX
32-LEAD LQFP PACKAGE
CASE 873A-04
EI SUFFIX
28-LEAD PLCC PACKAGE
Pb-FREE PACKAGE
CASE 776-02
AC SUFFIX
32-LEAD LQFP PACKAGE
Pb-FREE PACKAGE
CASE 873A-04
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相关代理商/技术参数 |
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| MPC9230FNR2 | 制造商:Integrated Device Technology Inc 功能描述:PLL Clock Synthesizer Single 28-Pin PLCC T/R 制造商:Integrated Device Technology Inc 功能描述:FSL 800MHz LVPECL Freq. Synthesizer |
| MPC9239 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:900 MHz Low Voltage LVPECL Clock Synthesizer |
| MPC9239AC | 功能描述:时钟合成器/抖动清除器 2.5 3.3V 250MHz Clock Generator 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 |
| MPC9239ACR2 | 功能描述:时钟合成器/抖动清除器 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 |
| MPC9239EI | 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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