M54939FP

The M54939FP is a semiconductor integrated circuit, an oxide-film separated ECL/I2L PLL frequency systhesizer.The prescaler and PLL,with a maximum operating frequency of 1.0 GHz,are housed on a single chip.The M54939FP is a PLL frequency synthesizer IC for TVS and VCRS.The prescaled in emitter-coupled logic and the PLL in integrated injection logic.The maximum operating frequency of the prescaier is 1.0 GHz.

Features of the M54939FP are:(1)built-in prescaler with input amplifier (fmax=1.0GHz);(2)low power dissipation (ICC=30mA at VCC=5V);(3)fine tuning capability(31.25kHz/step);(4)PLL lock/unlock status display output;(5)serial data input (2 or 3 data transter lines).

The absolute maximum ratings of the M54939FP can be summarized as:(1):the symbol is VCC,the parameter is supply voltage,the rating is -0.5 to +6.5,the unit is V;(2):the symbol is VI,the parameter is input voltage,the rating is -0.5 to 6.5,the unit is V;(3):the symbol is VO1,the parameter is output voltage PD output,the rating is -0.5 to 5.5,the unit is mA;(4):the symbol is VO2,the parameter is output voltage other than above,the rating is -0.5 to 6.5,the unit is V;(5):the symbol is VBD,the parameter is output withstanding voltage ,the rating is 13,the unit is V;(6):the symbol is Pd,the parameter is power dissipation,the rating is 550,the unit is mW;(7):the symbol is Topr,the parameter is operating temperature,the rating is -20 to +75,the unit is ;(8):the symbol is Tstg,the parameter is storage temperature,the rating is -40 to +125,the unit is .