Pl tronics,. Inc. 19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA Manufacturer of High Quality Frequency Control Products PE3345B PECL Series 4 Pad Leadless Surface Mount Clock Oscillator 10.00 MHz - 170.00 MHz See PE1145T for higher frequencies Differential PECL Output with Enable/ Disable Function Standard Specifications Overall Frequency Stability Operating Temperature Range Supply Voltage (Vcc) Supply Current (Icc) Jitter Output Load Enable/Disable Option (E/D) 50 PPM, 25 PPM, 20 PPM over Operating Temperature Range 0 to +80C is standard, but can be extended to - 40 to +85C for certain frequencies 3.3 volts 10% standard, but 5.0 volts or 2.5 volts also available 60 to 70 mA typical, 90 mA maximum for 70 MHz. For < 70 MHz, consult factory 1 pS RMS maximum, from 12 kHz to 20 MHz from carrier for 70 MHz. For < 70 MHz, consult factory Output must be terminated into 50 ohms to (Vcc - 2.0 V). See Test Circuit 5 and Note 1. Output enabled when Pin 2 is open or at CMOS Logic "1"; Output disabled when Pin 2 is at CMOS Logic "0". Symmetry Tr & Tf Logic "1" Logic "0" Output Waveform PECL with Differential Output (see Waveform 2) 45/55% to 55/45% at 50% of Vcc level standard, tighter symmetry available 1.0 nS max (20 to 80%) for 70 MHz. For < 70 MHz, consult factory Vcc - 1.025 volts minimum Vcc - 1.620 volts maximum Note 1: In the typical PECL 100K logic output Voh is 2.35 volts and Vol is 1.60 volts at 3.3 Vcc. The center voltage of the PECL is therefore1.975 volts. If a 50 ohm resistor is placed between the output and Vcc - 2 volts (1.3 volts), the current through the resistor is (1.975 - 1.3) / 50 = 13.5 mA. The same load can be simulated by a resistor of 147 1% ohms to ground (1.975 / 0.0135 = 146.29 ohms). If additional load current is placed on the output, its load current must be subtracted from the 13.5 mA to calculate a new load resistor. Using similar calculations, use 274 1% ohms to ground for 5.0V operation. Part Numbering Guide Packaging Tray or 24mm tape, 16mm pitch PE33 45 B Y -- 70.0M Model Frequency in MHz Special Specifications (choose all that apply) E: Extended Operating Temperature Range (- 40 to +85C) F: 47.5 /52.5% Symmetry at 50% of Vcc V: Supply Voltage of 3.3 volts 10% W: Supply Voltage of 2.5 volts 5 % Y: Supply Voltage of 5.0 volts 10% Frequency Stability 45 = 50 PPM 44 = 25 PPM 20 = 20 PPM Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned. Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load Mechanical: inches (mm) not to scale Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code. Possible Pinout Options, Consult Factory for Alternate Pinouts Q Out N.C. Vcc 4 PLE 5 6 PE1145B 3 .560 (14.23) MAX 2 1 GND E/D QN Out .125 (3.17) MAX Q Out 3 Vcc 4 PE3145B 2 GND 1 QN Out Q Out QN 4 5 Vcc 2 6 6 PE3345B 3 (Remove center pads for PE3145B) 1 GND E/D N.C. .12 (3.0) .23 (5.8) .400 (10.16) MAX PE1145B Series PE3X45B Series 5 4 .05 (1.3) Solder Pads 1 2 3 .200 (5.08) Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com May 2002