MC1374

Order this document by MC1374/D TV Modulator Circuit The MC1374 includes an FM audio modulator, sound carrier oscillator, RF oscillator, and RF dual input modulator. It is designed to generate a TV signal from audio and video inputs. The MC1374’s wide dynamic range and low distortion audio make it particularly well suited for applications such as video tape recorders, video disc players, TV games and subscription decoders. Single Supply, 5.0 V to 12 V MC1374 TV MODULATOR CIRCUIT SEMICONDUCTOR TECHNICAL DATA Channel 3 or 4 Operation Variable Gain RF Modulator Wide Dynamic Range Low Intermodulation Distortion Positive or Negative Sync Low Audio Distortion Few External Components 14 1 P SUFFIX PLASTIC PACKAGE CASE 646 ORDERING INFORMATION Device MC1374P Operating Temperature Range TA = 0° to +70°C Package Plastic DIP Figure 1. Simplified Application V Channel 3 + R1 470 C1 0.001 R3 470 L1 R2 470 + + C4 50 C3 120 5–25 C7 C2 56 4 + C8 0.001 S1 R10 10k D1 MPN3404 7 6 5 4 C14 0.01 3 2 C5 0.001 R5 3.3k R6 2.2k Shaded Parts Optional L1 – 4 Turns #22, 1/4″ Dia. L2 – 40 Turns, #36, 3/16″ Dia. © Motorola, Inc. 1996 +VCC = 12V C9 0.001 4 VPin 1 VPin 11 3 t 8 9 10 U1 MC1374 11 12 13 14 C16 47 R8 2.2k R14 56k + R12 180k D2 1N914 C11 22 R7 75Ω 0.22µH L3 C12 47 0.22µH L4 C13 22 R9 560 R11 220 C15 0.001 Output + R4 6.8k L2 C10 10µF + Video In Audio In 1 R13 30k C6 1µF Rev 0 MOTOROLA ANALOG IC DEVICE DATA 1 MC1374 MAXIMUM RATINGS (TA = 25°C, unless otherw...