Lx1995 Led Driver: Camera Flash Application

The M-88L70 is a full DTMF Receiver that integrates both bandsplit Filter and decoder functions into a single 18-pin DIP or SOIC package. Manufactured using CMOS process technology, the M-88L70 offers low power consumption (18 mW max), precise data handling and 3V operation. Its Filter section uses switched capaci- tor technology for both the high
Lx1995 Led Driver: Camera Flash Application - schematic

and low group Filters and for dial Tone rejection. Its decoder uses digital counting techniques to detect and decode all 16 DTMF Tone pairs into a 4-bit code. External component count is minimized by provision of an on-chip differential input Amplifier Clock Generator and latched tri-state Interface bus. Minimal external components required include a low-cost 3. 579545 MHz color burst crystal, a Timing resistor, and a Timing capacitor. By Clare, Inc.

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