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LA72912V Datasheet(PDF) 7 Page - ON Semiconductor |
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LA72912V Datasheet(HTML) 7 Page - ON Semiconductor |
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7 / 8 page  LA72912V No.A1409-7/12 Pin Function Pin No. Pin name FM MOD mode(Outside camera) FM DEMOD mode(Inside Monitor) Note 1 Emphasis filter Emphasis filter connection pin Non connect(Hi-Z) If you no need, this pin is open. 2 VCC5V VCC for FM modulation. VCC for FM demodulation. 3 FM/Video Output FM Output (RO=200Ω:1.8Vp-p) Video Output (RO=1kΩ: 2Vp-p) Push-pull output 4 4V Regulator FM modulate block and ASK bock supply reference voltage. FM demodulate block and ASK bock supply reference voltage. 5 FM/VD input VD Input. (Hi: over 2V, Low: under 0.4V) (VD DET: High) FM Input. (Recommend Level: 100 to 620mVp-p) DEMOD mode: Set 3.3V by internal bias. (34k Ω/66kΩ) 6 MOD/DEMOD Control Set over 2V DC voltage. Set under 0.4V DC voltage. Outside camera / Inside monitor setting. 7 TC1(MOD)/ FMAGC monitor Out control Set capacitor for TC1 FMAGC monitor out control GND: Monitor ON / VCC: Monitor OFF Can do second inside monitor addition 8 TC2(DEMOD)/ FMAGC monitor Output Set capacitor for TC2 FMAGC monitor output Can do second inside monitor addition 9 ASK-VCC5V VCC for ASK ← 10 ASK CAR IN ASK carrier Input. (Recommend below 3Vp-p) ← 2.1V by internal bias. (50k Ω) 11 ASK DATA IN ASK Data Input. (Hi: more than 2V, Lo: below 0.4V) ← 12 ASK TX Output ASK modulated signal Output ← Push-pull output 13 ASK RX Output ASK Demodulated Output ← Open collector output ASK carrier detect = Lo 14 ASK DET filter ASK Detector filter ← 15 ASK AGC filter /AGC OFF AGC filter for ASK. (When AGC operate voltage is 0V to 3V, AGC stop when you add over 4.5V.) ← 16 ASK RX input ASK Demodulate Input ← 3.3V by internal bias. (34k Ω/66kΩ) 17 Standby control FM blocks standby control. (FM block operate: over 2V, FM block standby: under 0.4V ) ← 18 DOC-OUT /2nd-Call input 2ND-Call input, 2ND-Call: Low (High: over 2V, Low: under 0.4V) DOC output (When DO-DET, output is Low) DEMOD mode: Open collector output. 19 B-GND Circuit GND ← 20 FM AGC filter Emphasis monitor output FM AGC control filter (AGC-ON:0 to 3V DC, AGC-OFF:4.5V to 5V by external DC voltage.) MOD mode: Don’t connect capacitor. 21 De-emphasis filter Non connect(Hi-Z) De-emphasis filter connection pin. If you don’t need, this pin is open. 22 A-GND Circuit GND ← 23 De-emphasis output /V-2V select DFF for V-diff control (ON: over 2V, OFF: under 0.4V) DE-emphasis output MOD mode; VD diff. Count select 0V : VD through 2V : VD 1/2 diff 24 Video input Video signal input. (from outside CCD camera: 1Vp-p). Video signal input. (from de-emphasis block: 0.5Vp-p). MOD mode: Maximum video input level is 1.5Vp-p. |
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Descripción similar - LA72912V |
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