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参数资料
| 型号： | PI6LC4831AZBIEX |
| 厂商： | PERICOM SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, QCC56 |
| 封装： | 8 X 8 MM, GREEN, MO-137AE, TQFN-56 |
| 文件页数： | 1/14页 |
| 文件大小： | 891K |
| 代理商： | PI6LC4831AZBIEX |
1
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P-0.1
03/28/11
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PI6LC4831A
Block Diagram
Pin Configuration (56-Pin TQFN)
Description
The PI6LC4831A clock generator supports networking systems
requiring 25MHz for ethernet and 100MHz for PCIe applica-
tions. This novel part includes both a low phase noise VCO and
a traditional VCO which supports spread spectrum applications.
Twelve copies of the 25MHz reference clock are provided, evenly
divided between true and complimentary outputs to minimize
EMI and di/dt. The low phase noise LC VCO drives 2 HCSL out-
puts and the 24MHz LVCMOS outputs. The Spread spectrum
ring oscillator drives a 100MHz or 200MHz selectable HCSL out-
put. I2C control is included for on-board frequency and spread
spectrum functionality changes.
Features
3.3V ± 5% Supply Voltage
Industrial temperature -40°C to 85°C
Uses 25MHz xtal such as Saronix-eCera SRX7278
Two low jitter PCIe 100MHz outputs
One 100/200MHz selectable HCSL output with spread
spectrum support
12 LVCMOS 25MHz reference clock outputs
Two LVCMOS 24MHz outputs
I2C Interface
Packaging (Pb-free & Green available):
à
8mm × 8mm 56-pinTQFN
Crystal to Differential HCSL/LVCMOS Frequency Synthesizer
X1
X2
25MHz
OSC
PLL 1
Phase
Detector
LC VCO
2.4GHz
÷4
÷96
÷6
1
0
IREF
LVCMOS - 25MHz
Qa_Ref
a= 0, 2, 4, 6, 8, 10
nQb_Ret
b= 1, 3, 5, 7, 9, 11
Q0A_PLL1+
Q0A_PLL1-
Q1A_PLL1+
Q1A_PLL1-
nQ2B_PLL1
Q3B_PLL1
LVCMOS - 24MHz
÷25
÷10,
÷5
Q0_PLL2+
Q0_PLL2-
HCSL - 100MHz or 200MHz
1
0
÷2
Phase
Detector
Ring VCO
1.8 - 2.2GHz
72 - 88
(80 defult)
Controlled by
M4:M0
Spread
Spectrum
Bypass
Output Enable
PLL2
I2C
Control
Block
SCLK
SDATA
ADDR_SEL
RESET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1516 17 18 19 20 2122 23 24 25 26 2728
42
41
40
39
38
37
36
35
34
33
32
31
30
29
5655 54 53 52 51 5049 48 47 46 45 44 43
PI6LC4831A
VDD
Q0A_PLL1+
Q0A_PLL1-
GND
X1
X2
VDD
RESET
ADDR_SEL
SDATA
SCLK
VDD
VDDO_REF
Q6_REF
GND
nQ7_REF
VDDO_REF
Q8_REF
GND
nQ9_REF
VDDO_REF
Q10_REF
GND
VDDO_REF VDDO_REF
VDDO_24MHz
Q3B_PLL1
GND
nQ2B_PLL1
VDDO_24MHz
VDDA1
GND
VDDA2
IREF
GND
Q0_PLL2-
Q0_PLL2+
VDD
VDDO_REF nQ5_REF GND Q4_REF VDDO_REF nQ3_REF GND Q2_REF VDDO_REF nQ1_REF GND Q0_REF VDDO_REF VDDO_REF
Q1A_PLL1+
Q1A_PLL1-
nQ1
1_REF
11-0032
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相关代理商/技术参数 |
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| PI6LC4833ZBIE | 功能描述:时钟发生器及支持产品 Clock Generator for Power PC RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
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| PI6LC4840ZHEX | 制造商:Pericom Semiconductor Corporation 功能描述:Frequency Synthesizer 32-Pin TQFN EP T/R 制造商:Pericom Semiconductor Corporation 功能描述:LVDS SWITCH |
| PI6PCIEB24ZDE | 功能描述:时钟缓冲器 1:4 PCI Express Gen2 Zero Delay Buffer RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
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