TMC424

TMC424 Datasheet – (V1.04 / 2015-JUL-01) 1/21 TMC424 – Datasheet Serial Triple Incremental Encoder Interface VCORE GND VCCI ENC_INV EXT_RES SDO SDI SCK NSCS SDO429 NSCS429 NINT 76 100 TRINAMIC Motion Control GmbH & Co. KG Waterloohain 5 D – 22769 Hamburg GERMANY WWW.TRINAMIC.COM SDO_D 26 SDI_D SCK_D NSCS_D REF0 REF1 REF2 VCORE GND VCCI STOPR0 STOPR1 STOPR2 STOPL0 STOPL1 STOPL2 TCK TDI TMS VCC 50 GND 1 ENC1_A ENC1_B ENC1_N ENC2_A ENC2_B ENC2_N GND ENC3_A ENC3_B GND ENC3_N VCORE STEP1 VCORE VCCI DIR1 STEP2 DIR2 STEP3 DIR3 VCC GND 25 TMC424 TQFP-100 Package 75 GND VCC VCORE GND VCCI CLK VCC TRST TDO VCC 51 GND TMC424 Main Features The TMC424 is a triple incremental encoder input chip, which interfaces to any SPITM 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 integra...