Temperature Compensated Crystal Oscillators (TCXO, VCTCXO) Surface Mount Type TCXO (LSI Type) KT1612 Series 1.6×1.2mm Features • 1612 Ultra-miniature SMD type • Freq. temp. characteristics. : ±2.0×10−6/ −30 to +85°C : ±0.5×10−6/ −30 to +85°C (for GPS) • 1.68 to 3.63V drive available • Reflow compatible • Operating Temp. −40 to +105°C (Option) Applications RoHS Compliant • Mobile Communications, W-LAN • Low power radio communications • GPS Unit How to Order KT1612A 26000 A C W 18 T xx ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ① Series ② Output Frequency ③ Freq. Temp. Chrst. A B C D ±0.5×10−6 ±1.0×10−6 ±1.5×10−6 ±2.0×10−6 ⑥ Supply Voltage 18 1.8V 28 2.8V 30 3.0V 33 3.3V ⑦ Voltage Control Function T Other∗ TCXO VCTCXO ∗ Customer Spec. ④ Lower Operating Temp. ⑧ Option Code C E G −30°C −20°C −10°C ⑤ Upper Operating Temp. W V U +85°C +80°C +75°C Packaging (Tape & Reel 18000 pcs./ reel) Specifications Item Output Frequency Range Symbol fo Frequency Tolerance f_tol Frequency Aging Storage Temperature Range Operating Temperature Range Voltage Control Range Supply Voltage Output Level Current Consumption Harmonics f_age T_stg T_use f_cont VCC Vpp ICC — Conditions Min. 10 −0.5/ −2 −0.2 −0.2 −1 −40 −30 ±8 1.68 0.8 — — vs Temperature vs Load vs Voltage Per Year Positive Clipped Sine∗, Load: 10k ohm / / 10pF Max. 52 +0.5/ +2 +0.2 +0.2 +1 +85 +85 ±15 3.63 — 2 −5 Units MHz ×10−6 ×10−6 °C °C ×10−6 V Vp-p mA dBc ∗ : A DC-cut capacitor is not embedded in this crystal oscillator. Connect a DC-cut capacitor (≥1nF) to the line-out terminal of the oscillator. ∗ Please contact us for other specifications. (Unit: mm) 1.6±0.1 #4 Test Circuit Recommended Land Pattern Test circuit 1 TCXO 0.2 #3 A POWER SUPPLY Vcc 4 3 TCXO V 1 2 RL Spectrum Analyzer & Counter, Oscilloscope FET PROBE CL 0.4 #2 Co 0.55 max. #1 1.2±0.1 Marking Area 0.5 Test circuit 2 VCTCXO A Co #2 POWER SUPPLY Vcc 0.4 0.4 0.4 #1 0.2 #4 1.2 #3 0.2 (Unit: mm) 0.5 Dimensions #1pin #2pin #3pin #4pin Pin Configuration GND/ Vcon GND OUTPUT Vcc 4 3 TCXO V 1 2 RL Spectrum Analyzer & Counter, Oscilloscope FET PROBE 0.3 1.2 0.3 CL Vcon Note: A capacitor of value 0.01μF between Vcc and GND is recommended. RL=10kΩ±10% CL=10pF±10% • CL include Probe Capacitance Co: DC Cut Capacitance