Temperature Compensated Crystal Oscillators(TCXO) Surface Mount Type TCXO (LSI Type) KT18B Series 5.0x3.2A Features How to Order * Ultra-miniature SMD Type (5.0x3.2x1.5mm) * Reflow compatible * AFC function available * 2.3 to 3.5V drive available * Frequency Stability : 2.0ppm at -30C to +85C Applications q RoHS Conforming - 19.680M - T w er t y u i tSupply Voltage 28 2.8V 30 3.0V qType wFrequency stability K 5ppm E 2.5ppm D 2.0ppm yOption Code eLower operating temp C -30C E -20C G -10C * PDC, GSM, CDMA Pb Free KT18B - D C V 30 rUpper operating temp W 85C V 80C U 75C uFrequency(MHz) 13.000 19.200 19.800 14.400 19.440 26.000 16.800 19.680 iPackaging T Tape & Reel 4,000pcs/Reel Specifications Item Output Frequency Range Symbol FOUT f/fo Frequency Stability TSTG TOPR faging f/V VDD Vout IDD SYM ----- Storage Temp. Range Operating Temp. Range Aging Voltage control range Supply Voltage Output Voltage Current Consumption Duty Ratio Harmonics Dimensions (Unit : mm) Conditions Min. 13 -2.0 -0.2 -0.3 -40 -30 -1 +/-8 2.3 0.8 ----40 ----- vs Temperature vs Load vs Voltage Per Year Positive 10k ohm // 10pF @50% VDD Test Circuit Max. 26 +2.0 +0.2 +0.3 +85 +85 1 +/-15 3.5 ----2.0 60 -5 Units MHz ppm C C ppm ppm Volt Vp-p mA % dBc Recommended Land Pattern (Unit : mm) Test circuit 1 (Amplitude) 5.00.2 A #1pin Marking Oscilloscope (100MHz) POWER V SUPPLY 0.700.1 1.5(MAX) Vcc 4 3 VC-TCXO 1 2 Vcon 10k 10% CL=10pF 10% 2.950.15 #4pin #3pin #1pin #2pin 1.3 1.3 1.0 3.20.2 MARKING AREA CL include Probe Capacitance 2.950.15 1.0 0.70.1 q w (1.6) Test circuit 2 (Harmonics & Frequency) 0.70.1 A Spectrum Analyzer & Counter r e 0.950.1 q w e r Pin Configuration Vcon GND OUTPUT +Vcc Dimension:(mm) POWER SUPPLY Vcc V FET PROBE 4 3 VC-TCXO 1 2 Vcon 10k 10% CL=10pF 10% CL include Probe Capacitance