IC-LNB_13 Datasheet, PDF (5/35 Pages) IC-Haus GmbH – 18-BIT OPTO ENCODER WITH SPI AND SER/PAR INTERFACES

iC-LNB 18-BIT OPTO ENCODER ^preliminary
WITH SPI AND SER/PAR INTERFACES
Rev A1, Page 5/35
PIN CONFIGURATION
oQFN38-7x5 (7.0 mm x 5.0 mm x 0.9 mm)
(in qualification)
38 37 36 35 34 33 32 31 30 29 28 27
1
26
2
25
3
24
4
23
5
22
6
21
7
20
8 9 10 11 12 13 14 15 16 17 18 19
PIN FUNCTIONS
No. Name Function
1 GNDA Ground
2-6 n.c.
7 GND I/O Ports Ground
8 VDD + 3 V ... +5.5 V I/O Ports Supply Voltage
9 SCK SPI Clock Input
10 MOSI SPI Data Input
11 MISO SPI Data Output
12 CS SPI Chip Select Input
13 TNC Test Input NCOS /
Parallel Output Bit 15
14 TNS Test Input NSIN /
Parallel Output Bit 14
15 DIR Code Inversion Input /
Parallel Output Bit 13
PIN FUNCTIONS
No. Name Function
16 NSL Shift Register Load Input (low active) /
Parallel Output Bit 12
17 DIN Shift Register Data Input /
Parallel Output Bit 11
18 DOUT Shift Register Data Output /
Parallel Output Bit 10
19 CLK Shift Register Clock Input /
Parallel Output Bit 9
20 GB Gray-code Output B (MSB-1) /
Parallel Output Bit 7
21 GA Gray-code Output A (MSB) /
Parallel Output Bit 8
22-24 n.c.
25 POK Power Ok Indication/
Parallel Output Bit 5
26 XJD Adjustment Signal /
Parallel Output Bit 6
27 INCZ Incremental Output Z /
Parallel Output Bit 4
28 INCB Incremental Output B /
Parallel Output Bit 3
29 INCA Incremental Output A /
Parallel Output Bit 2
30 ERR Error Message Output (high active)
31 TPS Test Input PSIN /
Parallel Output Bit 1
32 TPC Test Input PCOS /
Parallel Output Bit 0
33 NCOS Analog Voltage Output NCOS
34 PCOS Analog Voltage Output PCOS
35 NSIN Analog Voltage Output NSIN
36 PSIN Analog Voltage Output PSIN
37 LED LED Highside Current Source
38 VDDA + 4 V ... +5.5 V Supply Voltage
n.c. pin not connected
Wiring unused input pins can be recommended, especially for pins DIR, TPS, TNS, TPC, TNC (e.g. via 10 kΩ to
GNDA).
The thermal pad of the optoQFN package (bottom side) should be joined to an extended copper area which must
have GNDA potential.