CXA3050M

CXA3050M NICAM and SMATV RF MODULATOR/PLL Description Fully synthesized I2C controlled UHF/VHF TV RF Modulator compatible with PAL and NTSC video formats. Features Minimal adjustment of external components For use on VHF and UHF TV Frequencies Video RF carrier frequency programmable in 125kHz steps Accepts NICAM 6.552MHz QPSK input signal Accepts FM Stereo input signal I2C control of: a. Video RF Carrier Frequency b. Sound Carrier Frequency c. Modulation Depth (±2% Typ.) d. FM Deviation (±8% Typ.) e. P/S ratio (±1dB Typ.) f. Nicam output enable to sleep g. Video RF carrier enable to sleep On chip Regulator 3.1V Block Diagram Analog GND Analog VCC NICAM-in OSC VCC 24 pin SOP (Plastic) Structure Bipolar silicon monolithic IC Applications PAL and NTSC System VCR Satellite Receiver Set Top Box SMATV Recommended Operating Voltages (Ta = 25°C) Supply voltage VCC 5.0 ± 0.5 V Supply for VCO Varactor 30 ± 0.5 V Operating Temperature –10 to +80 °C RF-OUT OSC GND OSC4 OSC1 OSC2 PDout 14 PLL 11 OSC3 24 23 22 21 20 19 18 17 16 15 13 AMP NICAM MIXER VIDEO MIXER AMP VCO AMP TPSG W/C-CLAMP FM-OSC REG PLL OSC PLL I2C-Interface 1 2 3 4 5 6 7 8 9 10 12 Vreg Digital-VCC Mod-adj Digital GND Audio-Loop filter Video-in Audio-in SCL Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Appl...