SDC-361 Datasheet | DDC

Features DESCRIPTION The SDC-361 is a low-cost, single module synchro-to-digital (S/D) and resolver-to-digital (R/D) tracking converter. A unique control transformer algorithm is used that provides inherently higher accuracy and jitter-free output. Other Features include a BIT logic signal to indicate proper tracking and an analog velocity output. Utilizing a type II servo loop, these converters have no velocity lag up to the specified tracking rate, and output data is always fresh and continuously available. Each unit is fully trimmed and requires no adjustment. APPLICATIONS The SDC-361 may be used wherever analog angle data from synchros or resolvers must be converted rapidly and accurately to digital form for transmission, storage and analysis. Because these units are extremely rugged and stable, and meet the requirements of MIL-STD-202E, they are suitable for the most severe industrial, mercial and military applications. Military ground support and avionics uses include ordnance control, radar tracking systems, navigation and collision avoidance systems. - Accuracy: ±1 LSB = ±20 Seconds - SIGNAL AND REF INPUTS: - Internal Transformer Isolation - Broadband Input: 350-3000 Hz or 47-3000 Hz - All mon L-L voltage levels - LOGIC: - TTL patible - 16-Bit Parallel Binary Angle Output, and Converter Busy, Inhibit and BIT - POWER REQUIREMENTS: - ±15 VDC and +5 VDC SIN (θ - φ) SIN 36 (θ - φ) 36X SYNCHRO INPUT S1 S2 S3 SCOTT-T TRANSFORMER CONTROL TRANSFORMER CT COS 36θ 36 φ 36X OR 1X RESOLVER INPUT OPTION: S1 RESOLVER S2 INPUT S3 S4 RESOLVER ISOLATION TRANSFORMER SIN θ COS θ 16 BIT UP-DOWN COUNTER (CONTAINS ANGLE φ) φ φ 36X DIGITAL MULTIPLIER SIN 36θ STICKOFF + CROSS-OVER DETECTOR ERROR R (θ - φ) ERROR PROCESSOR AND VOLTAGE CONTROLLED OSCILLATOR REFERENCE ISOLATION TRANSFORMER RH REF RL INPUT VEL VELOCITY INH INHIBIT CB CONVERTER BUSY DIGITAL OUTPUT φ BITS 1to 16 1X SYNCHRO INPUT w w a © D . w S a t e e h U 4 t S1 S2 S3 .c om SCOTT-T...