OVERVIEW

The SM5009 series are crystal oscillator module ICs that incorporate low crystal current type oscillating circuit to limit oscillator-stage current, so that they can reduce crystal current lower than the existing products. Since the oscillating circuit has oscillator capacitors with excellent frequency response and feedback resistor built-in, just connecting crystal realizes stable fundamental oscillation responding up to 40MHz. The SM5009 series are ideal for SMD type crystal oscillator using a strip-shaped crystal blank.

FEATURES

■ Low crystal current oscillator

■ Up to 40MHz operating frequency range (funda mental oscillation)

■ Operating supply voltage range

? 3V operation: 2.7 to 3.6V

? 5V operation: 4.5 to 5.5V

■ –40 to 85°C operating temperature range

■ Oscillation capacitors CG, CD built-in

■ Inverter amplifier feedback resistor built-in

■ Standby function

? Oscillator stops (AL series), high impedance in standby mode

■ Low standby current

? Power-save pull-up resistor built-in (AL series)

■ Frequency divider built-in (fO, fO/2, fO/4, fO/8, fO/16, fO/32 determined by internal connection)

■ Output drive capability

? AL×, AN×, AK×, CN×: 16mA (VDD = 4.5V)

? AH×: 4mA (VDD = 4.5V)

■ Output load: CL = 50pF max.

■ Output duty level

? CMOS level (1/2 VDD): AL×, AN×, AH×, CN×

? TTL level (1.4V): AK×

■ Molybdenum-gate CMOS process

■ 8-pin SOP (SM5009×××S)

■ Chip form (CF5009×××)