TMC424 Analog Devices

TMC424 Datasheet (V1.04 / 2015-JUL-01) 1/21 TMC424 Datasheet Serial Triple Incremental Encoder Interface GND 1 75 GND VCC ENC1 A ENC1 B ENC1 N ENC2 A ENC2 B ENC2 N VCORE GND GND ENC3 A VCCI ENC3 B GND CLK TMC424 ENC3 N TQFP-100 Package VCORE TRINAMIC Motion Control GmbH & Co. KG STEP1 VCORE Waterloohain 5 VCCI DIR1 STEP2 VCC D 22769 Hamburg DIR2 TRST STEP3 TDO DIR3 GERMANY VCC VCC GND 25 51 GND WWW.TRINAMIC.COM TMC424 Main Features TM The TMC424 is a triple incremental encoder input chip, which interfaces to any SPI compatible controller. The TMC424 can especially be used in conjunction with the TMC429 triple stepper motor controller to provide position verification or stabilization using some additional software. It integrates 24 bit counters for each encoder to provide a high position resolution without CPU interaction. Further it allows dynamic resolution adaptation to allow direct comparison of encoder counters with motors using a different micro step resolution. All encoder counters can be latched synchronously, or whenever a null channel event occurs, providing a position on strobe holding function. The TMC424 also provides a step / direction output with programmable signal shaping for the TMC429 as an optional function. A multiplexer function is also integrated for the TMC429 reference switches. All functions can also be used in conjunction. Applications Stepper Motor Position Verification Position Maintenance Incremental Encoder Interface Readout Step / Direction conversion for TMC429 systems Features Supports 2 and 3 channel incremental encoders with a wide range of resolutions Allows step / direction signal extraction from TMC429 output data stream Programmable pulse shaping for step / direction interface 24 bit integrated position resolution Programmable prescaler for Incremental Encoder Interface 4-times evaluation of encoder signals TM Fast 32 bit SPI interface TM Can share SPI interface with TMC429 and supplies separate interrupt output Integrates Reference Switch Multiplexers Package: TQ100 Note: SPI is Trademark of Motorola, Inc. Copyright 2011 TRINAMIC Motion Control GmbH & Co. KG SDO D 26 100 SDO SDI D SDI SCK D SCK NSCS D NSCS SDO429 NSCS429 NINT REF0 EXT RES REF1 REF2 VCORE VCORE GND GND VCCI VCCI STOPR0 ENC INV STOPR1 STOPR2 STOPL0 STOPL1 STOPL2 TCK TDI TMS VCC 50 76TMC424 Datasheet (V1.04 / 2015-JUL-01) 2/21 Revision History Version Comment Date Name Derived from TMC423 rebirth datasheet V1.4 1.0 June 24, 2010 SL Added Pin12 (GND) to Table 1 1.01 October 14, 2010 SL Added internal Pull-Up/-Down 1.02 February 1, 2011 SL resistors to Table 1 1.03 Updated to TMC429 and TMC26x June 30, 2011 SL Warning hint for chamfered corner in IC 1.04 2015-JUN-01 BD package is not pin 1 reference Copyright 2011 TRINAMIC Motion Control GmbH & Co. KG