 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
IC-LTA Datasheet(PDF) 11 Page - IC-Haus GmbH |
|
||||||||||||||||||||||||||||||
IC-LTA Datasheet(HTML) 11 Page - IC-Haus GmbH |
|
|
11 / 15 page  preliminary preliminary iC-LTA 6-CH. INCREMENTAL OPTO ENCODER ARRAY Rev C1, Page 11/15 DIGITAL OUTPUT SIGNALS T T/4 T/4 T/4 T/4 PA PB PZ U V W C/6 C/6 C/6 C/6 C/6 C/6 C ö PZ PZ AB-gated B-gated ungated Figure 4: Typical encoder quadrature and motor commutation signals. iC-LTA’s photo-sensor array requires an external reticle (placed either on side of the IC or on side of the LED), and thus allows for a free definition of the optical ra- dius and cycles per revolution for the A and B encoder quadrature signals. The pulse count, period length and phase shift for the U, V, W commutation signals is also determined by the code disc design. Contracted code disc designs and IC packaging with custom reticle can be offered on request; contact iC-Haus for details. ANALOG OUTPUT SIGNALS VCC U PB PA PZ R1 R2 GND T1 SEL Figure 5: Example of analog ABZ / analog UVW (pin SEL = 50% VCC) VCC U PA PB PZ R1 R2 GND T1 SEL Figure 6: Example of analog ABZ / digital UVW (pin SEL = 75% VCC) iC-LTA features 5 principle operation modes which are selectable by the voltage applied to pin SEL. A voltage divider as suggested by Table 4 is the easiest way to obtain this. SEL R11) R21) Operation Mode 100 % VCC 0 Ω open x2 interpolated 75 % VCC 2.7 kΩ 8.2 kΩ analog ABZ, dig. UVW 50 % VCC 4.7 kΩ 4.7 kΩ all analog (open) (open) 25 % VCC 8.2 kΩ 2.7 kΩ x4 interpolated 0 % VCC open 0Ω x1 comparated 1) Exemplary values. Table 4: Selection of operation mode by pin SEL. If input SEL is left open, the IC biases its input at 50% VCC and analog output signals are available for test and alignment. Analog output signals may also be used to increase the encoder’s resolution by connecting an external in- terpolation IC. In this case the analog signals are re- quired permanently, so that noise immunity should be improved by wiring pin SEL to an external reference providing VCC/2. Setting 75 % VCC may be considered to obtain analog signals at PA/PB/PZ and NA/NB/NZ outputs feeding the external interpolation IC, together with digital sig- nals at U/V/W directly connecting a line driver. Special attention to the PCB layout should be paid to avoid cross talk; analog and digital lines should be separated carefully. |
Similar Part No. - IC-LTA_16 |
|
Similar Description - IC-LTA_16 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
