LM629N-8/NOPB National Semiconductor, LM629N-8/NOPB Datasheet
LM629N-8/NOPB
Specifications of LM629N-8/NOPB
*LM629N-8/NOPB
LM629N-8
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LM629N-8/NOPB Summary of contents
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... They incorporate an SDA core processor and cells designed by SDA. TRISTATE& ® registered trademark of National Semiconductor Corporation. © 2003 National Semiconductor Corporation Features n 32-bit position, velocity, and acceleration registers n Programmable digital PID filter with 16-bit coefficients ...
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... Connection Diagrams LM628N 00921902 Order Number LM629M-6, LM629M-8, LM628N-6, LM628N-8, LM629N-6 or LM629N-8 www.national.com LM629N 00921903 See NS Package Number M24B or N28B 2 LM629M 00921921 *Do not connect. ...
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... Index Pulse Setup and Hold (Relative to A and B Low) CLOCK AND RESET TIMING (See Figure 3) Clock Pulse Width LM628N-6, LM629N-6, LM629M-6 LM628N-8, LM629N-8, LM629M-8 Clock Period LM628N-6, LM629N-6, LM629M-6 LM628N-8, LM629N-8, LM629M-8 Reset Pulse Width ≤ 85˚C, (Note 2) (Note ESD Tolerance (C ...
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AC Electrical Characteristics (V and T per Operating Ratings Timing Interval STATUS BYTE READ TIMING (See Figure 4) Chip-Select Setup/Hold Time Port-Select Setup Time Port-Select Hold Time Read Data Access Time Read Data Hold Time RD High ...
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FIGURE 2. Quadrature Encoder Input Timing FIGURE 3. Clock and Reset Timing FIGURE 4. Status Byte Read Timing 5 00921904 00921905 00921906 www.national.com ...
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FIGURE 5. Command Byte Write Timing FIGURE 6. Data Word Read Timing 6 00921907 00921908 ...
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Pinout Description (See Connection Diagrams) Pin numbers for the 24-pin sur- face mount package are indicated in parentheses. Pin 1 (17), Index (IN) Input: Receives optional index pulse from the encoder. Must be tied high if not used. The index ...
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Pinout Description (Continued) within 1.5 ms. If the status word has not changed from hex “00” to “84” or “C4” within 1.5 ms, perform another reset and repeat the above steps certain that the reset was properly performed, ...
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Theory of Operation (Continued) TABLE 1. System Specifications Summary (Continued) Control Algorithm Proportional Integral Derivative (PID) (plus programmable integration limit) Sample Intervals Derivative Term: Programmable from 2048/f 65,536 µs for an 8.0 MHz clock). Proportional and Integral: 2048/f VELOCITY PROFILE ...
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Theory of Operation for example), the desired position will continue to be in- creased, resulting in a very large position error. If this con- dition goes undetected, and the impeding force on the motor is subsequently released, the motor could ...
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Theory of Operation (Continued) LM628 READING AND WRITING OPERATIONS The host processor writes commands to the LM628 via the host I/O port when Port Select (PS ) input (Pin 16) is logic low. The desired command code is applied to ...
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Theory of Operation Command Type SBPR Interrupt MSKI Interrupt RSTI Interrupt LFIL Filter UDF Filter LTRJ Trajectory STT Trajectory RDSTAT Report RDSIGS Report RDIP Report RDDP Report RDRP Report RDDV Report RDRV Report RDSUM Report Note 4: Commands may be ...
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Initialization Commands DFH COMMAND: DEFINE HOME Command Code: 02 Hex Data Bytes: None Executable During Motion: Yes This command declares the current position as “home”, or absolute position 0 (Zero). If DFH is executed during motion it will not affect ...
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Interrupt Control Commands (Continued) field will mask the corresponding interrupt(s); any one(s) enable the interrupt(s). Other bits comprising the two bytes have no effect. The mask controls only the host interrupt process; reading the status byte will still reflect the ...
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Filter Control Commands it is not transferred to the secondary (working) registers until the UDF command is executed. This fact can be used ad- vantageously; the user can input numerous data ahead of their actual use. This simple pipeline effect ...
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Trajectory Control Commands (Continued) occurs automatically at the end of the specified trajectory. Under exceptional circumstances it may be desired to manu- ally intervene with the trajectory generation process to affect a premature stop. In velocity mode operations, however, the ...
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Data Reporting Commands (Continued) LPEI or LPES has been exceeded. The flag is functional independent of the host interrupt mask status. Bit 5 is cleared via command RSTI. Bit 4, the wraparound interrupt flag, is set to logic one when ...
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Data Reporting Commands (Continued) divided by the incremental encoder resolution (encoder lines times four), should always be an integral number. The RDIP command facilitates acquiring these data for host-based calculations. The command can also be used to identify/ verify home ...
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Typical Applications (Continued) provides the clock for the LM628. The 74LS245 is used to decrease the read-data hold time, which is necessary when interfacing to fast host busses. INTERFACING A 12-BIT DAC Figure 14 illustrates use of a 12-bit DAC ...
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Typical Applications Note: FIGURE 12. Host Interface and Minimum System Configuration www.national.com (Continued) 20 00921914 ...
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Typical Applications (Continued) FIGURE 13. LM628 and HPC Interface 21 00921915 www.national.com ...
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www.national.com 22 ...
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Typical Applications (Continued) FIGURE 15. Driving a Motor with the LM12 Power Op Amp FIGURE 16. PWM Drive for Brush/Commutator Motors 00921917 23 00921918 www.national.com ...
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Typical Applications FIGURE 17. Typical Balanced-Line Encoder Input Circuit www.national.com (Continued) 24 00921920 ...
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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM628N-6, LM628N-8, LM629N-6 or LM629N-8 24-Lead Small Outline Package (M) Order Number LM629M-6 or LM629M-8 NS Package Number M24B 28 Lead Molded Dual-In-Line Package (N) NS Package Number N28B 25 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...