PLL灵活的调节器

Product descriptions: The unit is a low cost Frequency agile modulator developed for use in adding satellite, VCR, or security video channels to an existing home distribution system. It allows the addition of channels over the Ultra band and UHF band of frequencies at an extremely low cost. The modulator has a double sideband, 7dBmV minimal output. The microprocessor controlled Phase Locked Loop circuitry allows selection of the output channel to be made from the front panel. The selected channel number is displayed in the channel selection window. The agile design provides maximum flexibility while allowing installers one model to cover the Ultra band UHF channels. The unit is operating in either PAL-B/G Standard PAL-D/K or PAL-I mode. Out put channels: CATV Chs21 thru 69(PAL-B/G) Output level: 7 dBmV minimum Output Impedance: 75Ω Frequency Stability: Video 250KHz Audio ±3KHz Connectors: F or RF out and power in RCA for base band audio and video Adapter: input 220V, 50Hz Output 15V DC, 300mA