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The 73M1903 eliminates the need for a dedicated crystal oscillator, features programmable sample rates, and is a low cost solution for analog modems up to 56 kbps. The 73M1903 is ideal for DSP or RISC based soft modem applications. The 73M1903 includes on-chip PLL supporting reference frequencies between 9 and 40 MHz, power conservation modes, sigma-delta converter with programmable sample rates, differential hybrid circuitry, and can be configured for CTR-21, FCC, and other telco standards worldwide.

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