MA710 – 12-BIT, DIGITAL ANGLE SENSOR WITH ABZ & PWM OUTPUTS

MA710 Rev. 1.0

www.MonolithicPower.com

17

9/27/2017

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The first data MSB is transmitted on the second

clock count. If the data length is less than 16,

the 16-bit output word is completed by zeros.

Therefore, the reading can also be performed

with fewer than 16 clock counts. For example,

for a part with a 12-bit data length, it is only

necessary to send the first dummy clock to start

the transmission + 12 clocks to read the angle

data.

When a trigger event is detected, the data

remains in the output buffer until the clock

falling edge for the LSB bit 0 and the transfer

timeout time has passed (see Table 6).

Table 6: Sensor Data Timing

Trigger Event

Release of the Output Buffer

First SSCK pulse rising

edge

SSCK falling edge + time out tm (Fig 15)

Figure 16: Diagram of a Full 16-Bit SSI Angle Reading (with First Dummy Clock)

For consecutive angle readings, see the timing in Figure 17.

Figure 17: Diagram of Two Consecutive 16-Bit SSI Angle Reading with the Required Dead Time between

the Frames