IC-TW14 Datasheet, PDF (1/33 Pages) IC-Haus GmbH – IC-PMX Companion Chip

iC-TW14
iC-PMX Companion Chip
FEATURES
• Complete processing for iC-PMX-based energy-harvesting
absolute multiturn encoders using Wiegand sensors¹
• SSI multiturn data output
• Interface to iC-PMX (SPI Master and Singleturn Hall signal I/O)
• UART Interface for calibration and diagnosis
• Adjustable synchronization offset and multiturn preset value
• Based on NXP² S9KEAZN8 microcontroller
• Extended temperature range from –40 to +125°C
Rev A1, Page 1/33
APPLICATIONS
• Gearless revolution counting
• Revolution counting without
batteries
• Energy harvesting multiturn
encoders
• Absolute end-of-shaft encoders
PACKAGES
1 _{Devices and processes for energy harvesting by Wiegand wire within}
position encoders are protected by several worldwide patents (such as
EP1565755B1, US7598733, CA2506408) and require licensing by the
inventors and applicants.
2 _{NXP is a registered trademark of NXP Semiconductors}
BLOCK DIAGRAM
QFN24
4 mm x 4 mm
23 _NRES
TX
15
RX
16
NPRE
6
Power-Down-Reset
UART
(I/O for diagnosis)
Preset Logic
(set zero Position)
VDD
3
CB
GND
4
iC-TW14
Clk
MT Interface
Data
Data Valid
MCL
2
MDI
1
MRDY
5
SPI Master
(I/O to iC-PMX)
12 Bit ADC
(SAR)
NCS
7
SCK
14
MISO
8
MOSI
13
SH
9
RDY
21
VW P
10
HOP
11
HON
12
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