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ML2036 Arkusz danych(PDF) 1 Page - Fairchild Semiconductor |
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ML2036 Arkusz danych(HTML) 1 Page - Fairchild Semiconductor |
1 / 12 page www.fairchildsemi.com REV. 1.0.2 7/26/01 Features • 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 ML2004 logarithmic gain/attenuator 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 genera- tion of precise test tones, call progress tones, and signaling tones. Block Diagram (Pin configuration shown for 14-Pin PDIP Version) CLK OUT 2 CLK OUT 1 VOUT LATI SCK SID 7 5 3 10 8-BIT DAC PHASE ACCUMULATOR & 512 POINT SINE LOOK-UP TABLE 8 16 16 16-BIT DATA LATCH 16-BIT SHIFT REGISTER CRYSTAL OSCILLATOR ÷2 CLK IN 14 AGND 11 VCC 8 12 - + 5k Ω 5k Ω ZERO DETECT SMOOTHING FILTER ÷2 ÷2 4 3 DGND VSS 1 2 PDN-INH VREF 9 GAIN 13 ML2036 Serial Input Programmable Sine Wave Generator with Digital Gain Control |
Podobny numer części - ML2036 |
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Podobny opis - ML2036 |
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