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AS5215

Datasheet - Application In form atio n

8.8 Analog Sin/Cos Outputs with External Interpolator

Figure 17. Sine and Cosine Outputs for External Angle Calculation

The AS5215 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 + µC, e.g. to compute the angle with a high resolution. The output driver capability is 1mA.

The signal lines should be kept as short as possible, longer lines should 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.

The DC bias voltage is 1.5 or 2.5 V.

VDD

VSS

Micro

Controller

AS5130

100n

VSS

+5V

VDD

VDD

SINP_1/SINN_1

SINN_1/SINP_1/CM_SIN_1

SINN_2/SINP_2/CM_SIN_2

VSS

D

DA

A

D

DA

A

COSP_1/COSN_1

COSN_1/COSP_1/CM_COS_1

COSN_2/COSP_2/CM_COS_2

SINP_2 / SINN_2

COSP_2/COSN_2

PROG

100k

Notes:

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

2. Default conditions for unused pins are: DCLK_1/2, CS_1/2, DIO_1/2, TC_1/2, A_TST_1/2, TBO_1/2, TB1_1/2, TB2_1/2,

TB3_1/2 connect to VSS