ML2036

March 1997 ML2036* Serial Input Programmable Sine Wave Generator with Digital Gain Control GENERAL DESCRIPTION The ML2036 is a monolithic sine wave generator whose output is programmable from DC to 50kHz. No external components are required. The frequency of the sinewave output is derived from either an external crystal or clock input, providing a stable and accurate frequency reference. The frequency is programmed by a 16-bit serial data word. The ML2036 provides for a VOUT amplitude of either ±VREF or ±VREF/2. Also included with the ML2036 is an inhibit function which allows the sinewave output to be held at zero volts after completing the last half cycle of the sine wave in progress. Two digital clock outputs are provided to drive other devices with one half or one eighth of the input clock frequency. The ML2036 is intended for telecommunications and modem applications that need low cost and accurate generation of precise test tones, call progress tones, and signaling tones. FEATURES s s s Programmable output frequency - DC to 50kHz Low gain error and total harmonic distortion 3-wire SPI compatible serial microprocessor interface with double buffered data latch Fully integrated solution - no external components required Frequency resolution of 1.5Hz (±0.75Hz) with a 12MHz clock input Onboard 3 to 12MHz crystal oscillator Clock outputs of 1/2 or 1/8 of the input clock frequency Synchronous or asynchronous data loading capability Compatible with ML2031 and ML2032 tone det...