IC-TW11 Datasheet, PDF (4/25 Pages) IC-Haus GmbH – 10-BIT ULTRA LOW POWER MAGNETIC ABSOLUTE ROTARY ENCODER

iC-TW11 10-BIT ULTRA LOW POWER^preliminary
MAGNETIC ABSOLUTE ROTARY ENCODER
PACKAGING INFORMATION
Rev B1, Page 4/25
PIN CONFIGURATION QFN16-4x4
(top view)
16 15 14 13
TP1 1
TM1 2
TP0 3
TM0 4
TW11
12 V_IO
11 xSS
10 SCLK
9 IRQ_IN
5 678
PIN FUNCTIONS
No. Name Function
12 V_IO +1.8 V to +3.3 V IO Power Supply
15 V_CORE +3.3 V Main Power Supply
16 GND Ground
EP¹⁾
Exposed Pad
1) The backside paddle may have a single link to GND. A current flow across the paddle is not permissible.
PIN FUNCTIONS
No. Name
1 TP1
2 TM1
3 TP0
4 TM0
5 SI
6 TESTEN
7 SO
8 IRQ_OUT
9 IRQ_IN
I/O
Analog I/O
Digital Input
Digital Input
Digital Output
Digital Output
Digital Input
Function
Test Pin
SPI Slave Input
Test Enable
SPI Slave Output
Interrupt Request Output
Interrupt Request Input
10 SCLK
11 xSS
12 V_IO
Digital Input with SPI Clock Input
hysteresis
Digital Input
(active low)
SPI Slave Select Input
Supply
IO Power Supply
13 SAMPLE Digital Input
External Sample Input
14 xRST
15 V_CORE
16 GND
Digital Input
(active low)
Supply
Ground
Reset Input
Main Power Supply
Power Supply Common
Description
Do not use. Connect to GND for normal operation.
Connect to SPI Master Output (MOSI).
Do not use. Connect to GND for normal operation.
Connect to SPI Master Input (MISO).
Connect to host input or IRQ_IN of another iC-TW11.
Used only in multiple iC-TW11 device chains. Connect to GND for
single device operation.
Connect to SPI Master clock output.
Connect to SPI Master slave (chip) select output.
+1.8 V to +3.3 V power supply input. Determines the operating voltage
of all iC-TW11 digital I/O.
Initiates sampling and conversion of magnet position. Connect to GND
if using SPI sampling.
Connect to host output or other reset source. iC-TW11 is in low-power
sleep mode if xRST is low.
+3.3 V power supply input. Connect to 3.3 V power supply.
Circuit common for all I/O.