LC7131

The LC7131 make it possible to output the out-of-lock signal to have digital discriminate expander of the puise from phase detector internally .And also LC7131 output the out-of-lock signal when the phase difference signal is within 1.6s to have the detector of change input.

Features of the LC7131 are:(1)built-in high speed programmable divider for directPLL system;(2)PLL out-of-lock output available to inhibit transmittion;(3)instantaneous call capability of channel 9 and 19;(4)built-in detecting circuit of mis-program;(5)built-in amplifier for crystal oscillator;(6)built-in amplifier for active low-pass filter;(7)BCD code channel selection.(pull-down resistors included).

The absolute maximum ratings of the LC7131 can be summarized as:(1):the parameter is maximum supply voltage,the symbol is VDDmax,the rating is -0.3 to +8.0,the unit is V;(2):the parameter is maximum input voltage,the symbol is IINmax,the rating is -0.3 to VDD+0.3,the unit is V;(3):the parameter is output voltage,the symbol is VOUT(1),the rating is -0.3 to +10.0,the unit is V;(4):the parameter is output voltage,the symbol is VOUT(2),the rating is -0.3 to VDD+0.3,the unit is V;(5):the parameter is maximum output current,the symbol is IOUT(1),the rating is 0 to +1.5,the unit is mA;(6):the parameter is maximum output current,the symbol is IOUT(2),the rating is 0 to +2.5,the unit is mA;(7):the parameter is allowable power dissipation,the symbol is Pdmax,the rating is 300,the unit is mW;(8):the parameter is operating temperature,the symbol is Topr,the rating is -30 to +70,the unit is ;(9):the parameter is storage temperature,the symbol is Tstg,the rating is -40 to +125,the unit is .