Crystal Oscillator Dual-Rate Voltage-Controlled Crystal Oscillator (DUAL RATE-VCXO®) 7300 Series Model Name 7311Q n Main Application For SONET-, SDH-, and GbEthernet-related equipment n Features l Frequencies can be selected according to the external input used. l A surface-mount crystal oscillator. n Specifications Model Classification Item 7311Q NTVC1 Standard nominal frequency (MHz) 622.08/644.5313, 622.08/666.5143, 622.08/669.3266 Power supply voltage +3.3V DC±5% Load 50Ω Operating temperature range −10 to +70°C Consumption current 100mA max Output level PECL level (Complementary) Duty cycle 40 to 60% Comprehensive frequency stability ±50×10−6 max Frequency control characteristic ±100×10−6 min / +1.65±1.5V Control polarity Positive n Dimensions n List of Ordering Codes mm Frequency (MHz) f1: 622.08 Hollow 11.6±0.2 9.6±0.5 0.15±0.1 PAD No. #1 V.C #2 CONT. #3 GND #4 OUTPUT #5 OUTPUT +DC #6 3.9±0.2 17.0±0.5 Connection f2: 644.5313 f1: 622.08 f2: 666.5143 f1: 622.08 f2: 669.3266 Ordering Code 7311Q-622M644M-NSA3342A 7311Q-622M666M-NSA3342B 7311Q-622M669M-NSA3342C The above frequencies are NDK’ s standard frequencies. Frequencies other than the above are available. Feel free to contact our sales representatives. Reference land pattern #2 #3 7.0±0.5 #1 0.8±0.1 2.54±0.2 #6 #5 #4 2.54±0.2 1.27 3.0 2.9 2.9 3.0 2.54 2.54 Function Table CONT.(#2) OUTPUT(#4,#5) L FEC Rate H 622.08MHz * High Level : 2.0V min Low Level : 0.8V max co28_071108_7311Q_e1