EURO QUARTZ XO21 Series Oscillators 2.0 x 1.6 x 0.75mm SMD HCMOS 2.5MHz to 50MHz FEATURES Page 1 of 2 Ultra-small SMD seam sealed clock crystal oscillator unit Frequency Range 2.5MHz to 50MHz Tristate (Enable/Disable) function as standard Supply voltage 1.8, 2.5 or 3.3 Volts DESCRIPTION OUTLINE & DIMENSIONS XO21 ultra-small clock oscillators consist of a TTL/CMOS-compatible hybrid circuit and a miniature quartz crystal packaged in a lowprofile, industry-standard ceramic package. XO21 oscillators are fully specified clocks with low mass and a very small footprint. SUPPLY VOLTAGE-DEPENDENT PARAMETERS Supply +1.8VDC±5% +2.5VDC±5% +3.3VDC±5% Voltage Code = 'C' Code = 'B' Code = 'A' Frequency 2.5MHz~ 2.5MHz~ 2.5MHz~ Range 50MHz 50MHz 50MHz Logic HIGH '1' 1.62V min. 2.25V min. 2.97V min. (90%Vdd min.) Logic LOW '0' 0.18V max. 0.25V max. 0.33V max. (90% Vdd max.) Current 5mA max. 5mA max. 8mA max. Consumption Rise Time/ 5ns max. 5ns max. 5ns max. Fall Time 3ns typ. 3ns typ. 3ns typ. SPECIFICATION Supply Voltage: Output Logic: Frequency Stability: Rise/Fall Time: Output Load Duty Cycle: Supply Current: Operating Temperature Commercial: Industrial: Storage Temperature: Start-up Time: Ageing: Tristate Function (Pad 1): Packaging: 1.8, 2.5 or 3.3Volts ±5%, HCMOS/LSTTL 15pF ( 50%±10% [50%±5% also available] ENVIRONMENTAL PERFORMANCE SPECIFICATION -10° to +70°C -40° to +85°C -50° to +100°C 10ms max. ±3ppm max. Enable/Disable function is standard for XO21. Output (Pad 3) is active if Pad 1 not connected or Pad 1 is 'HIGH'. Output high impedance when 'LOW' or GROUND is applied to Pad 1. 8mm tape, 180mm reel, 1k or 2k pieces per reel RoHS Status: Storage Temperature Range: Humidity: Hermetic Seal: Solderability: Reflow: Vibration: Shock: Compliant -55° to +105°C 85% RH, 85°C for 48 hours Leak rate 2x10-8 ATM -cm3/s max. MIL-STD-202F Method 208E 260°C for 10 sec (see diagram) MIL-STD-202F Method 204, 35±5 mins, 50 to 2000Hz MIL-STD-202F Method 213B, test Condition E, 50g 11ms. 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 EURO QUARTZ XO21 Series Oscillators 2.0 x 1.6 x 0.75mm SMD HCMOS 2.5MHz to 50MHz Page 2 of 2 SOLDER TEMPERATURE PROFILE PART NUMBERING Example: 20.000MHz XO21050UCTA Frequency Series Designation XO21 Temperature Stability* 100 = ±100ppm 050 = ±50ppm 025 = ±25ppm Output CMOS/LSTTL Operating Temp. Range C = Commercial -10° to +70°C I = Industrial -40° to +85°C Tristate Function Supply Voltage A = 3.3 Volts B = 2.5 Volts C = 1.8 Volts 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