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DS1123LE-50
Rev 2; 8/07 3.3V, 8-Bit, Programmable Timing Element The DS1123L is an 8-bit programmable timing element similar in function to the DS1023, but operating at 3.3V. Like the DS1023, the DS1123L can delay signals up to a full period or more when used as a delay line, and an on-chip reference delay can be used to offset the inherent “step-zero” delay. This allows the DS1123L to shift a clock signal over the full 0 to 360° phase range. In addition to functioning as a delay line, it can be configured as a free-running oscillator or an externally triggered monostable vibrator. Features ♦ Step Sizes of 0.25ns, 0.5ns, 1ns, 2ns ♦ On-Chip Reference Delay ♦ Configurable as a Delay Line, Monostable Vibrator, or Free-Running Oscillator ♦ Can Delay Signals by a Full Period or More ♦ Guaranteed Monotonicity ♦ Parallel and 3-Wire Serial Programming Interface ♦ Single 3.3V Power Supply ♦ 16-pin TSSOP Applications Ordering Information Telecommunications TEMP RANGE PART Digital Test Equipment Digital Video Projection PINSTEP SIZE/ PACKAGE NO. OF STEPS (150-mil) DS1123LE-25 0°C to +70°C 16 TSSOP 0.25/256 DS1123LE-50 0°C to +70°C 16 TSSOP 0.5/256 DS1123LE-100 0°C to +70°C 16 TSSOP 1/256 DS1123LE-200 Signal Generators and Analyzers 0°C to +70°C 16 TSSOP 2/256 Pin Configuration Typical Operating Circuit IN LE SYSTEM CLOCK OUT/OUT (OPTIONAL) Q/P0 MICROPROCESSOR 3-WIRE INTERFACE CLK/P1 4 P/S DS1123L VARIABLE DELAY/PHASE OUTPUT P7 D/P2 P6 P3 MS P4 GND IN 1 16 VCC LE 2 TOP VIEW 3.3V VCC 15 OUT/OUT P0/Q 3 P1/CLK 4 14 P/S DS1123L 13 P7 P2/D 5 REFERENCE OUTPUT P5 REF/PWM 12 P6 P3 6 11 MS P4 7 10 P5 GND 8 9 REF/PWM _____________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 DS1123L General Description
MAXIM
Maxim Integrated
U.S.A
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