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NJU6343 Dataheets PDF



Part Number NJU6343
Manufacturers New Japan Radio
Logo New Japan Radio
Description 50MHz VCXO IC
Datasheet NJU6343 DatasheetNJU6343 Datasheet (PDF)

www.DataSheet4U.com NJU6343 Product Specification 50MHz VCXO IC sGENERAL DESCRIPTION The NJU6343 is a single chip C-MOS IC for VCXO that consists of an oscillation amplifier and 3-state output buffer. The NJU6343 integrates all components used in VCXO module, and there is no need for completing VCXO module to prepare any external components except a quartz crystal. It can vary its output frequency by controlling voltage at VC terminal. The oscillation amplifier is realized very low stand-by cu.

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www.DataSheet4U.com NJU6343 Product Specification 50MHz VCXO IC sGENERAL DESCRIPTION The NJU6343 is a single chip C-MOS IC for VCXO that consists of an oscillation amplifier and 3-state output buffer. The NJU6343 integrates all components used in VCXO module, and there is no need for completing VCXO module to prepare any external components except a quartz crystal. It can vary its output frequency by controlling voltage at VC terminal. The oscillation amplifier is realized very low stand-by current using NAND circuit. The 3-state output buffer is C-MOS compatible. sFEATURES qOperating Voltage 2.7 to 3.6V qMaximum Oscillation Frequency 50MHz(T.B.D.) qFrequency Pulling Range ±100ppm qLow Operating Current qHigh Fan-out IOH/IOL= T.B.D @3.0V qOscillation Stop and Output Stand-by Function q3-State Output Buffer qA Variable Capacitor on-chip qPackage Outline Chip qC-MOS Technology sCOORDINATES No 1 Pad Name X Y sPACKAGE OUTLINE NJU6343C sPAD LOCATION 2 3 4 CONT XT XT VSS FOUT VC VDD Starting Point:Chip Center Unit[um] Chip Size:1.6x1.6mm Thin-Chip Thickness:260±20um Pad Size:90x90um sBLOCK DIAGRAM XT XT Rf VDD VSS VC Cg Cd 3 − STATE BUFFER FOUT CONT 2002/03/11 ( 1 / 4 ) www.DataSheet4U.com NJU6343 sTREMINAL DESCRIPTION SYMBOL CONT FUNCTION Oscillation and 3-state Output Buffer Control FOUT CONT Frequency Output corresponding to Control H or OPEN Voltage. L Oscillation Stop and High impedance Output Quartz Crystal Connecting Terminals VSS=0V Frequency Output Frequency Control VDD=3.0V (Ta=25°C) XT XT VSS FOUT VC VDD sABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATING UNIT Supply Voltage VDD -0.5 to +7.0 V Control Voltage VC VSS-0.5 to VDD+0.5 V Input Voltage VIN VSS-0.5 to VDD+0.5 V Output Voltage VO -0.5 to VDD+0.5 V mA Input Current IIN ±10 Output Current IO mA ±25 Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -55 to +125 °C Note1) If the supply voltage(VDD) is less than 7.0V, the input voltage must not over the VDD level though 7.0V is limit specified. Note2) Decupling capacitor should be connected between VDD and VSS due to the stabilized operation for the circuit. 2002/03/11 ( 2 / 4 ) www.DataSheet4U.com NJU6343 (Ta=25°C) CONDITIONS MIN 2.7 TYP MAX 3.6 UNIT V SYMBOL VDD sELECTRICAL CHARACTERISTICS PARAMETER Operating Voltage sELECTRICAL CHARACTERISTICS (VDD=3.0, VC=VDD/2, Ta=25°C) CONDITIONS fosc=16MHz, VC=VDD/2, CL=15pF CONT =VSS, VC=VDD/2, No load CONT XT=VSS, VC=VDD/2, No load Note3) 2.4 0 T.B.D T.B.D 10 1.8 MIN TYP T.B.D 2 MAX 5 1 3.0 0.6 UNIT mA uA uA V V mA mA uA uA uA kΩ pF V ppm MHz 50 50 3 3 3 3 55 55 6 6 6 6 200 200 % ns ns ns ns PARAMETER Operating Current Oscillation Stopping Current Stand-by Current Input Voltage Output Current Input Current 3-state Off Leakage Current Feedback Resistance Internal Capacitor Control Voltage Frequency Pulling Range Maximum Oscillation Frequency Output Signal Symmetry Output Signal Rise Time Output Signal Fall Time Output Disable time Output Enable Time Note3) SYMBOL IDD ISTB Ist VIH VIL IOH IOL IIN IOZ Rf Cg/Cd VC ∆fC FMAX SYM tr tf TPLZ TPZL VOH=2.7V VOL=0.3V CONT =0.8VDD CONT =0.2VDD CONT =VSS, VC=VDD/2, FOUT= VDD or VSS Preliminary fosc=16MHz 15 3.0 ±0.1 T.B.D T.B.D 0 VDD +100 -100 50 VC=0 to VDD CL=15pF, VC=VDD/2, @VDD/2 CL=30pF, VC=VDD/2, @VDD/2 CL=15pF, VC=VDD/2, 10% to 90% CL=30pF, VC=VDD/2, 10% to 90% CL=15pF, VC=VDD/2, 90% to 10% CL=30pF, VC=VDD/2, 90% to 10% CL=15pF, VC=VDD/2, RUP=10kΩ CL=15pF, VC=VDD/2, RUP=10kΩ 45 45 Excluding input current on CONT Terminal. 2002/03/11 ( 3 / 4 ) www.DataSheet4U.com NJU6343 sMEASURMENT CIRCUITS (1)Output Signal Symmetry(CL=15pF, VC=1/2VDD) Pulse Generator 1000pF XT 50Ω VDD FOUT CL=15pF H L 1/2VDD VSS (2)Output Signal Rise/Fall Time(CL=15pF, VC=1/2VDD) Pulse Generator 1000pF XT 50Ω VDD FOUT CL=15pF tr tf 90% 50% 10% VSS (3)Output Disable/Enable Time(CL=15pF, RUP=10kΩ, VC=1/2VDD) VDD XT Pulse Generator 50Ω CONT VSS FOUT RUP=10kΩ CONT 0.2VDD TPLZ 0.8VDD TPZL VOL VOH CL=15pF FOUT [CAUTION] The specifications on this data book are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this data book are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. 2002/03/11 ( 4 / 4 ) .


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