AS5115-HSST-500【PDF 13/21 页】IC ENCODER ROTARY 16-SSOP

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www.austriamicrosystems.com/AS5115

Revision 1.11

12 - 20

AS5115

Datasheet - Detailed Description

7.8 Analog Sin/Cos Outputs with External Interpolator

Figure 8. Sine and Cosine Outputs for External Angle Calculation

The AS5115 provides analog Sine and Cosine outputs (SINP, COSP) of the Hall array front-end for test purposes. These outputs allow the user

to perform the angle calculation by an external ADC + 礐, e.g. to compute the angle with a high resolution. The signal lines must be kept as

short as possible. In the case of longer lines, they must be shielded in order to achieve best noise performance.

Through the programming of one bit, you have the possibility to choose between the analog Sine and Cosine outputs (SINP, COSP) and their

inverted signals (SINN, COSN). Furthermore, by programming the bits <9:10> you can enable the common mode output signals of SIN and

COS.

VDD

VSS

Micro

Controller

AS5130

100n

VSS

+5V

VDD

SINN/SINP/CM_SIN

VDD

SINP/SINN

COSN/COSP/CM_COS

COSP/COSN

VSS

AS5115

D A

PROG

100k

Notes:

1. We recommend to use a 100k pull-up resistance.

2. Default conditions for unused pins are: DCLK, CS, DIO, TC, A_TST, TBO, TB1, TB2, TB3 connect to VSS

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