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參數(shù)資料
| 型號(hào)： | 9701-01 |
| 廠商： | PEREGRINE SEMICONDUCTOR CORP |
| 元件分類(lèi)： | PLL合成/DDS/VCOs |
| 英文描述： | 3000 MHz UltraCMOS⑩ Integer-N PLL Rad Hard for Space Applications |
| 中文描述： | PHASE LOCKED LOOP, CQCC44 |
| 封裝： | CERAMIC, QFJ-44 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 280K |
| 代理商： | 9701-01 |
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Product Specification
PE9701
Page 11 of 13
Document No. 70-0035-02
│ www.psemi.com
2003-2006 Peregrine Semiconductor Corp. All rights reserved.
pin CP. The current pulses from pin CP are low
pass filtered externally and then connected to the
VCO tune voltage. PD_U pulses result in a
current source, which increases the VCO
frequency; PD_D pulses result in a current sink,
which decreases VCO frequency.
A lock detect output, LD is also provided, via the
pin Cext. Cext is the logical “NAND” of PD_U and
PD_D waveforms, which is driven through a series
2k
resistor. Connecting Cext to an external
shunt capacitor provides integration. Cext also
drives the input of an internal inverting comparator
with an open drain output. Thus LD is an “AND”
function of PD_U and PD_D. See Figure 4 for a
schematic of this circuit.
Enhancement Register
The functions of the enhancement register bits are shown below with all bits active “high”.
Table 9. Enhancement Register Bit Functionality
** Program to 0
Phase Detector
The phase detector is triggered by rising edges
from the main Counter (fp) and the reference
counter (fc). It has two outputs, namely PD_U,
and PD_D. If the divided VCO leads the divided
reference in phase or frequency (fp leads fc),
PD_D pulses “high”. If the divided reference leads
the divided VCO in phase or frequency (fr leads
fp), PD_U pulses “high”. The width of either pulse
is directly proportional to phase offset between the
two input signals, fp and fc.
The signals from the phase detector couple
directly to a charge pump. PD_U controls a
current source at pin CP with constant amplitude
and pulse duration approximately the same as
PD_U. PD_D similarly drives a current sink at
Bit Function
Description
Bit 0
Reserved**
Bit 1
Reserved**
Bit 2
Reserved**
Bit 3
Power down
Power down of all functions except programming interface.
Bit 4
Counter load
Immediate and continuous load of counter programming as directed by the
Bmode and
Smode inputs.
Bit 5
MSEL output
Drives the internal dual modulus prescaler modulus select (MSEL) onto the Dout output.
Bit 6
Prescaler output
Drives the raw internal prescaler output (fmain) onto the Dout output.
Bit 7
fp, fc OE
fp, fc outputs disabled.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9701-0259 | 功能描述:近程傳感器 IRAL-50 -S1 - -2030VDC;50mA -NPN- -QD59-HSDO RoHS:否 制造商:Vishay Semiconductors 感應(yīng)方式:Optical 感應(yīng)距離:1 mm to 200 mm 電源電壓:2.5 V to 3.6 V 安裝風(fēng)格:SMD/SMT 輸出配置:Digital 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 系列:VCNL3020 |
| 9701032SS | 制造商:n/a 功能描述:Ships in 2 days |
| 970-10360000BO100 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Industrial Sensor for Harsh Environment (Throttle Position/Through Hole) |
| 970-1036-0001 | 制造商:Vishay Spectrol 功能描述:POTENTIOMETER ROTARY 5KOHM 30% 制造商:Vishay Spectrol 功能描述:POTENTIOMETER, ROTARY, 5KOHM, 30% 制造商:Vishay Spectrol 功能描述:POTENTIOMETER, ROTARY, 5KOHM, 30%; Track Resistance:5kohm; Track Taper:Linear; Resistance Tolerance: 30%; Potentiometer Mounting:Through Hole; No. of Gangs:1; MSL:-; Leaded Process Compatible:Yes; Linearity %:2%; Series:970 ;RoHS Compliant: Yes 制造商:Vishay Spectrol 功能描述:POTENTIOMETER, ROTARY, 5KOHM, 30%; Track Resistance:5kohm; Track Taper:Linear; Resistance Tolerance: 30%; Potentiometer Mounting:Through Hole; No. of Gangs:1; Leaded Process Compatible:Yes; Linearity %:2%; MSL:(Not Available) ;RoHS Compliant: Yes |
| 970-10360001BO100 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Industrial Sensor for Harsh Environment (Throttle Position/Through Hole) |
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