QTT325-38.400MBG-T

QTT325 Temperature Compensated Crystal Oscillator Fuel The Digital World Features ● ● ● ● ● ● ● ● Applications Frequency range : 10MHz to 52MHz SMD seam sealing ceramic package Supply voltage : 1.8V & 3.3V Clipped Sinewave output Low power consumption Voltage control function available External dimensions (mm) L : 3.2 x W : 2.5 x H : 1.0 RoHS compliant & Pb free ● ● ● ● ● ● Mobile communications GNSS Smartphone, Mobile phone Wearables IoT devices Portable radio communications Electrical Characteristics Item Nominal Frequency Range (F0) Frequency Tolerance (Ftol) vs Temperature Frequency Stability vs Load vs Supply Voltage Operating Temperature Range (T OTR) QTT325 Conditions 10MHz ~ 52MHz ±2.0 ppm Max. Note [1] ±0.5ppm, ±2.0ppm Note [2] ±0.2 ppm Max. Load ±10% ±0.2 ppm Max. VDD ±5% -30°C ~ +85°C Supply Voltage (VDD) 1.8V, 3.3V Current Consumption (IDD) 2.0 mA Max. Output Type Clipped Sinewave Output Load 10kΩ // 10pF Output Level 0.8 V(p-p) Min. Start-up Time 5 ms Max. Note [3] Auto Frequency Control (AFC) Range ±7ppm ~ ±16ppm VCTCXO, optional, Note [4] Phase Noise -135 dBc/Hz Typ. at 1kHz offset Aging (Faging) ±1 ppm Max. Storage Temperature Range (TSTR) at 25°C, first year -55°C ~ +125°C Notes: [1] Refer to nominal frequency after 2 times of reflow at 25°C. [2] Refer to frequency at 25°C±2°C. [3] Decoupling capacitor is required in external circuit. [4] If supply voltage VDD = 3.3V, control voltage Vcon = 0.5*VDD ± 1.0V. If supply voltage VDD = 1.8V, control voltage Vcon = 0.5*VDD ± 0.8V. Rev. 1.04 Page 1 www.qstproducts.com QTT325 Temperature Compensated Crystal Oscillator Fuel The Digital World Dimensions Pin function Function Pin TCXO 1 VCTCXO GND or NC AFC 2 GND 3 OUTPUT 4 VDD Recommended pad layout (Unit: mm) Ordering Information QTT325 - 26.000M B G - T Packaging Method Frequency in Hz T Please contact us for available frequencies Tape & Reel Supply Voltage B D 3.3 V 1.8 V Frequency Stability (over Temp.) N S G V Rev. 1.04 ± 2.0 ppm ± 2.0 ppm ± 0.5 ppm ± 0.5 ppm Page 2 ( -30°C ~ +85°C ), ( -30°C ~ +85°C ), ( -30°C ~ +85°C ), ( -30°C ~ +85°C ), TCXO VCTCXO TCXO VCTCXO www.qstproducts.com QTT325 Temperature Compensated Crystal Oscillator Fuel The Digital World Packing (Unit: mm) Reflow Profile Solder melting point : 220°C, 60 sec. Min., 200 sec. Max. Peak temperature : 260°C, 10 sec. Min., 30 sec. Max. (°C) 10 sec 260 220 180 150 120 sec Rev. 1.04 60 sec Page 3 Time (sec) www.qstproducts.com