IC-TW28 Datasheet, PDF (5/80 Pages) IC-Haus GmbH – 10-BIT SIN/COS INTERPOLATOR

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PACKAGING INFORMATION
Rev D2, Page 5/80
PIN CONFIGURATION QFN32-5x5
(top view)
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
5
<P-CODE>
21
20
6
<A-CODE>
19
7
<D-CODE>
18
8
17
9 10 11 12 13 14 15 16
PIN FUNCTIONS
No. Name
Function
1 SIN+³
+ Differential Sine Input
2 SIN–³
– Differential Sine Input
3 AVDD
+3.3 V Analog Power Supply Input
4 COS+³ + Differential Cosine Input
5 COS–³ – Differential Cosine Input
6 AVSS
Analog Ground
7 ZERO+⁴ + Differential Zero (Index) Input
8 ZERO–³ – Differential Zero (Index) Input
9 VREF
ADC Reference Voltage Output
10 VC
Bias Output (VDD/2)
11 Reserved¹
12 Reserved¹
13 Reserved¹
14 xRST⁴ Reset Input (active low)
15 xCALIB⁴ Auto-Calibration Input (active low)
16 xIRQ⁴
Interrupt Request (active low)
or Fault Output
17 Z–
– Differential RS422 Z or W Output
18 Z+
+ Differential RS422 Z or W Output
19 IOVSS I/O Ground
20 B–
– Differential RS422 B or V Output
21 B+
+ Differential RS422 B or V Output
22 IOVDD +3.3 V I/O Power Supply Input
23 A–
– Differential RS422 A or U Output
24 A+
+ Differential RS422 A or U Output
25 DVDD +3.3 V Digital Power Supply Input
26 LED⁴
LED Intensity Control Output
27 DVSS
Digital Ground
28 SO/C3 SPI Slave Output
or Configuration Input 3
29 SI/C2³ SPI Slave Input
or Configuration Input 2
30 SCLK/C1³ SPI Clock Input
or Configuration Input 1
31 xSS/C0⁴ SPI Slave Select Input
or Configuration Input 0
32 PINCFG⁵ Pin Configuration Select Input
TP²
Backside paddle
IC top marking: <P-CODE> = product code, <A-CODE> = assembly code (subject to changes), <D-CODE> = date code (subject to changes);
1 _{Must be connected to ground.}
2 _{Must be connected to a ground plane at AVSS potential. Can also be used to connect DVSS.}
3 _{Connect to ground via 10 kΩ resistor if not used. Do not allow to float.}
4 _{Connect to 3.3 V via 10 kΩ resistor if not used. Do not allow to float.}
5 _{Connect to 3.3 V (to DVDD for pin configuration) or ground (to DVSS for serial configuration). Do not allow to float.}