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參數(shù)資料
| 型號： | 97U877YKLF-T |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC40 |
| 封裝： | LEAD FREE, PLASTIC, MLF-40 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 640K |
| 代理商： | 97U877YKLF-T |
2
ICS97U877
0792A—04/15/04
Pin Descriptions
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The PLL clock buffer, ICS97U877, is designed for a VDDQ of 1.8 V, a AVDD of 1.8 V and differential data input and output
levels. Package options include a plastic 52-ball VFBGA and a 40-pin MLF.
ICS97U877 is a zero delay buffer that distributes a differential clock input pair (CLK_INT, CLK_INC) to ten differential
pair of clock outputs (CLKT[0:9], CLKC[0:9]) and one differential pair feedback clock outputs (FB_OUTT, FBOUTC).
The clock outputs are controlled by the input clocks (CLK_INT, CLK_INC), the feedback clocks (FB_INT, FB_INC), the
LVCMOS program pins (OE, OS) and the Analog Power input (AVDD).When OE is low, the outputs (except FB_OUTT/
FB_OUTC) are disabled while the internal PLL continues to maintain its locked-in frequency. OS (Output Select) is a
program pin that must be tied to GND or VDDQ.When OS is high, OE will function as described above.When OS is low,
OE has no effect on CLKT7/CLKC7 (they are free running in addition to FB_OUTT/FB_OUTC).When AVDD is grounded,
the PLL is turned off and bypassed for test purposes.
When both clock signals (CLK_INT, CLK_INC) are logic low, the device will enter a low power mode. An input logic
detection circuit on the differential inputs, independent from the input buffers, will detect the logic low level and perform
a low power state where all outputs, the feedback and the PLL are OFF.When the inputs transition from both being logic
low to being differential signals, the PLL will be turned back on, the inputs and outputs will be enabled and the PLL
will obtain phase lock between the feedback clock pair (FB_INT, FB_INC) and the input clock pair (CLK_INT, CLK_INC)
within the specified stabilization time tSTAB.
The PLL in ICS97U877 clock driver uses the input clocks (CLK_INT, CLK_INC) and the feedback clocks (FB_INT,
FB_INC) to provide high-performance, low-skew, low-jitter output differential clocks (CLKT[0:9], CLKC[0:9]).ICS97U877
is also able to track Spread Spectrum Clocking (SSC) for reduced EMI.
ICS97U877 is characterized for operation from 0°C to 70°C.
相關PDF資料 |
PDF描述 |
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| 97U877YHLF-T | 97U SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97ULP877AHLF-T | 97ULP SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97ULP877BHLF-T | 97ULP SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97ULP877BHLF | 97ULP SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52 |
| 97ULP877BKLF | 97ULP SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC40 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
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| 97ULP844AH | 功能描述:時鐘驅動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| 97ULP844AHLF | 功能描述:時鐘驅動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| 97ULP844AHLFT | 功能描述:時鐘驅動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| 97ULP844AHT | 功能描述:時鐘驅動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
| 97ULP845AH | 功能描述:時鐘驅動器及分配 RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel |
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