Ordering number : ENA0783 LA72910V Monolithic Linear IC FM Modulator and LA72910V Electrical Characteristics at Ta = 25C, V = 5V CC DC CHARACTERISTICS T6 = 0.4V, T9 = 2.0V, T10 = 0.4V Ratings Parameter Symbol In OUT Conditions Unit min typ max Control terminal CNT6L T6 Low level of control terminal of ALL mode. 0 0.4V (Pin6,9) Low level CNT9L T9 T6 = 0.4V(DEMOD mode), T9 = 0.4V (Standby mode) Control terminal CNT6H T6 High level of input terminal of ALL mode 2.0 5.0V (Pin6,9)High level CNT9H T9 T6 = 2.0V (MOD mode), T9 = 2.0V (Normal mode) Input5 Low level IN5L T5 Low level of input terminal of MOD mode 0 0.4V T6 = 2.0V, T9 = 2.0V, T10 = 0.4V Input5 High level IN5H T5 High level of input terminal of MOD mode 2.0 5.0V T6 = 2.0V, T9 = 2.0V, T10 = 0.4V Input10 Low level IN10L T10 Low level of input terminal of MOD mode 0 0.4V T5 = 0.4V, T6 = 2.0V, T9 = 2.0V Input10 High level IN10H T10 High level of input terminal of MOD mode 2.0 5.0V T5 = 0.4V, T6 = 2.0V, T9 = 2.0V Output10 terminal OPH10 T10 DEMOD mode: FM-Signal input 4.7 V High level T6 = 0.4V, T9 = 2.0V, Pull-UP:15K Output10 terminal OPL13 T10 T10: DEMOD mode: FM No-signal 0 0.25 0.4 V Low level OPL18 Measure the sink level of output terminal. T6 = 0.4V, T9 = 2.0V, Pull-UP:15K Input12 Low level IN12L T12 T12 Voltage of terminal at AGC ON 0 3V T6 = 0.4V, T9 = 2.0V Input12 High level IN12H T12 T12 Voltage of terminal at AGC OFF 4.5 5.0V T6 = 0.4V, T9 = 2.0V 5pin AC input dynamic ACIN5 T5A T3 Input amplitude level of FM signal 1000mVp-p range Freq: 11.5MHz to 13.5MHz 16pin AC input ACIN16 T16A T3 Maximum input level of T16A at Video signal 1.5 Vp-p dynamic range Video FM Modulation Block (MOD) T6=2.0V,T9=2.0V,T10=0.4V,T15=5V Ratings Parameter Symbol In OUT Conditions Unit min typ max Current dissipation I R measure the currents into pins 2 (MOD mode) 19.5 23.0 26.5 mA CC FM modulator output VFM1 T3 Measure the output level on T3 (No signal input) 1.8 2.2Vp-p level It is load impedance 200 between T3-GND. FM Mute output level VFM2 T3 Measure the T3 output level with 2nd call 0 10 20 mVp-p Carrier frequency FFM T3 Measure the output frequency on T3 10.9 11.5 12.1MHz with no signal input FM output Second THD2 T3 Measure the second harmonics distortion -30 -20 dB harmonic distortion with the above condition Deviation DEV T16A T3 With T16A 100% White 1Vp-p signal, 1.9 2.0 2.1MHz Measure the deviation on T3 FM modulator linearity LMOD T16A T3 Let f2.85, f3.35 and f3.85 be the output frequency -2 0 +2% when 2.85V, 3.35V and 3.85V is applied to T16A (11.5MHz to 13.5MHz) f3.35 - (f3.85 + f2.85) / 2 LMOD= 100 f3.85 f2.85 Emphasis gain GEMP T16A T12 With V a 300mVp-p 10kHz sine wave, -7.5 -6.0 -4.5 dB IN Measure the ratio of the levels on T16A and T12 Main linear emphasis GME1 T16A T12 With V a 300mVp-p 500kHz sine wave, -1.5 0.0 +1.5 dB IN characteristics(1) Measure the ratio of the levels on T16A and T12 Main linear emphasis GME2 T16A T12 With V a 300mVp-p 2MHz sine wave, 2.5 4.0 5.5 dB IN characteristics(2) Measure the ratio of the levels on T16A and T12 White clipping level LWC T16A T12 With V a 1.5Vp-p 100% white video signal. 180 200 220 % IN Measure the white clipping level on T12 Dark clipping level LDC T16A T12 With V a 1.5Vp-p 100% white video signal. -60 -50 -40 % IN Measure the dark clipping level on T12. FM stop beginning TC1 T5 T3 C7=0.01F, Time from fall of T5 signal to doing of 240 300 360 sec delay time FM carrier of T3 STOP (VD characteristic 1B) FM stop time TC2 T5 T3 C8=0.001F, Stop time of FM carrier of T3 30 40 50 sec (VD characteristic2A) Minimum VD pulse VDT T5 T3 C7=0.01F, Minimum VD pulse width to which 63 sec width TC1B is normally output No.A0783-2/10