LTC6990 BLOCK DIAGRAM (S6 Package Pin Numbers Shown) V+ OE 5 1 R1 DIV Hi-Z BIT 4-BIT A/D DIGITAL 4 CONVERTER FILTER R2 Hi-Z WHEN DISABLED MASTER OSCILLATOR 1µs V t • SET OUT MASTER = MCLK 50kΩ I PROGRAMMABLE DIVIDER SET 6 ÷1, 2, 4, 8, 16, 32, 64, 128 tOUT Hi-Z OUTPUT HALT OSCILLATOR UNTIL SETTLED IF ISET < 500nA ISET POR + – +– 1V VSET = 1V 2 3 6990 BD GND SET RSET Rev. D For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
