EURO QUARTZ XO91 Low Frequency Oscillator 32.768kHz 7 x 5mm SMD HCMOS FEATURES Miniature 7.0 x 5.0 x 1.4mm hermetically-sealed package Frequency 32.000kHz Tristate (Enable/Disable) function as standard Supply voltage 5.0 Volts DESCRIPTION XO91miniature oscillators consist of a TTL/CMOS-compatible hybrid circuit together with a miniature quartz crystal packaged in a lowprofile, industry-standard ceramic package. The high quality design and materials employed provide a highly reliable clock oscillator in a miniature package while mass production methods ensure that the XO91 provides a cost-effective oscillator solution. OUTLINE & DIMENSIONS SPECIFICATION Frequency: 32.768kHz Supply Voltage: 5.0 Volts ±10% Output Logic: HCMOS/LSTTL Frequency Stability: 100ppm* Rise/Fall Time: 4ns typical Output Voltage: HIGH ‘1’: 90%Vdd minimum LOW ‘0’: 10%Vdd maximum Output Load CMOS: 15pF TTL: 10 LSTTL loads Duty Cycle: 50%±5% Supply Current: 8.0mA typical, 15mA maximum Operating Temperature: -10° to +70°C Storage Temperature: -40° to +85°C Startup Time: 2ms typical Ageing: ±3ppm max. per year Tristate Function (Pad 1): Output (Pad 3) is active if Pad 1 is not connected or a voltage to Pad 1 is 'HIGH'. Output is high impedance when 'LOW' or GROUND is applied to Pad 1. * Frequency stability is inclusive of calibration tolerance at 25°C, frequency change due to shock & vibration, ±10 supply voltage variation and stability over temperature range. SOLDER TEMPERATURE PROFILE PART NUMBERING 32.000kHz XO91100UCT Frequency Series Designation XO91 Temperature Stability 100 = ±100ppm Output CMOS/TTL Operating Temperature Range C = Commercial Tristate Function EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk