KT2520K16369ACW18TAS

Handling Notes for Clock Oscillators 1. Shock & Drop • Vibration 2. Cleaning Do not inflict excessive shock and mechanical vibration that exceeds the norm, such as hitting or mistakenly dropping, when transporting and mounting on a board. There are cases when pieces of crystal break, and pieces that are used become damaged, and become inoperable. When a shock or vibration that exceeds the norm has been inflicted, make sure to check the characteristics. Since a crystal piece can be broken by resonance when a crystal device is cleaned by ultrasonic cleaning, be careful when carrying out ultrasonic cleaning. 3. Soldering conditions To maintain the product reliability, please follow recommended conditions. Standard soldering iron conditions Clock Oscillators Soldering iron 280°C to 340°C 3+1/ −0 sec. max. Time Reflow conditions (Example) 0 Peak: 26010 qC Temperature (qC) 10 sec. max. 0 180 10 qC 230qC min. 40 sec. max. 120 sec. max. Time (sec.) Clock Oscillators Recommended reflow Conditions vary depending upon products. Please check with the respective specification for details. 4. Mounting Precautions The lead of the device and the pattern of the board is soldered on the surface. Since extreme deformation of the board tears off the pattern, tears off the lead metal, cracks the solder and damages the sealed part of the device and there are cases in which performance deteriorates and operation fails, use it within the stipulated bending conditions. Due to the small cracks in the board resulting from mounting, please pay sufficient attention when attaching a device at the position where the warping of the board is great. When using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirming that there is no damage. Surface mount devices are NOT flow soldering compatible. 5. Storage Condition Since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deterioration in frequency accuracy and solderability. Parts should be stored in temperature range of −5 to +40°C, humidity 40 to 60% RH, and avoid direct sunlight. Then use within 6 months. As of March 2018 Handling Notes for Clock Oscillators 6. In order to use clock oscillators (1) The miniature oscillator for the clock utillzes a CMOS IC and incorporates a protective circuit against static electricity. However, exercise care in the same manner as for a normal CMOS IC. (2) Internal capacitor is not provided in the power supply section (+DC-GND). * To serve as overimpressed voltage and overcurrent protective device, place a bypass capacitor (0.01μF) as near as possible to the (+DC-GND) terminal. However, the capacitance value is meant as a guideline. Depending on the capacitor type, frequency characteristics vary. Accordingly, use a capacitor that matches the frequency characteristics. * KC7050S series has Bypass Capacitior between VCC and GND. (3) Applying reverse voltage could result in damage to internal parts. Take care not to connect terminals incorrectly. (4) Please do not use oscillators under unfavorable condition such as beyond specified range in catalog or specification sheet. (5) Please keep oscillators away from water, salt water or harmful gas. (6) KC7050S series should be stored in humidity-controlled area after the package is unsealed, in temperature +25±5°C, under humidity of 65%RH, and should be mounted on PCB within 7 days. Clock Timing Chart [CMOS Output] [LV-PECL (3.3V) Output] Tr Tr Tf Tf 2.420V VOH Output VCC 2.275V 80% Waveform 90% VCC VOH Crossing Point 50% VCC 10% VCC VOL Output 20% Waveform 1.680V VOL 1.490V GND T1 T1 T0 1/ FOUT T0 1/ FOUT Symmetry T1/ T0u100 (%) [LV-PECL (2.5V) Output] Symmetry T1/ T0u100 (%) [LVDS Output] Tr Tf Tr 1.475V 80% Waveform VOL Output VOH Output 80% Waveform Crossing Point Crossing Point 20% Waveform 1.095V 20% Waveform 0.690V T1 Output VOL T1 T0 1/ FOUT T0 1/ FOUT Tf 1.760V VOH Output Symmetry T1/ T0u100 (%) Symmetry T1/ T0u100 (%) [HCSL-Output] Tr Tf 0.85V Output Voh 0.60V 0.525V Crossing Point 0.175V 0.15V Output Vol -0.15V T1 T0 1/ FOUT Symmetry T1/ T0u100 （％） As of March 2018 Handling Notes for Clock Oscillators Test Circuits CMOS Output Test Circuits Test Point Pad4 A HCSL Output Test Circuits Pad3 Z0 50ohm A ⑥ Oscillator  Power Supply Pad2 ④ 50ohm Oscillator V CL 0.01PF 3.3V 10PF 0.01PF V  ⑤ 50ohm Pad1 ① ② ③ INH E/ D Control Note) Maximum load (Includes capacitances of fixture and probe) LV-PECL (3.3V/ XO) Output Test Circuits Z0 50ohm Z0 50ohm ECL Termination Test Point2 ECL   A ⑥ ⑤ LV-PECL (2.5V/ XO) Output Test Circuits ECL Termination Test Point1 ECL   V 10PF ④ ⑥ Z0 50ohm ECL Termination Test Point2 ECL   ⑤ ④ Oscillator BIAS VCC2.0V 0.01PF ① ECL Termination Test Point1 ECL   A Oscillator 3.3V Z0 50ohm ② 2.5V V ③ 10PF BIAS VCC2.0V 0.01PF ① E/ D Control ② ③ E/ D Control LVDS (2.5V/ XO) Output Test Circuits LVDS (3.3V/ XO) Output Test Circuits RL A ⑥ ⑤ RL A VVOD OD,dV , dV OD OD Duty,Vopp,Tr/Tf Duty, Vopp, Tr/ Tf ④ ⑥ ⑤ RL RL Oscillator Oscillator 3.3V 2.5V 10PF 0.01PF ① V VVOD OD,dV , dV OD OD Duty,Vopp,Tr/Tf Duty, Vopp, Tr/ Tf ④ ② ③ 10PF 0.01PF ① V VOH ② ③ VOH VVOS OS,,dV dVOS OS VVOS OS,,dV dVOS OS VOL VOL INH INH Note) RL=50: Note) RL=50: CMOS (VCXO 4pad) Output Test Circuits Pad4 A Pad1  V CMOS (VCXO 6pad) Output Test Circuits A Oscillator  Power Supply Test Point Pad3 ⑥  ① CL 0.01PF Power Supply (VC) Power Supply V  Note) Maximum load (Includes capacitances of fixture and probe)  ④ Oscillator Pad2  ⑤ Test Point V ② ③ CL  0.01PF Power Supply (VC)  V INH Note) Maximum load (Includes capacitances of fixture and probe) As of March 2018