Datasheet

B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

Channel

Enhanced Dither

MOSI CH 0 1 ED DA4 DA3 DA2 DA1 DA0 DF6 DF5 DF4 DF3 DF2 DF1 DF0

MISO CH 0 1 ED DA4 DA3 DA2 DA1 DA0 DF6 DF5 DF4 DF3 DF2 DF1 DF0

Channel

Enhanced

Dither

Configuration

Dither

Configuration

Dither FrequencyDither Frequency

Dither AmplitudeDither Amplitude

TLE 7241E

Functional Description and Electrical Characteristics

Data Sheet 55 Rev. 1.1, 2009-01-19

Figure 26 Dither Programming

MOSI

• B12 Enhanced Dither: Enables the enhanced dither feature when ED = 1,

Default = 0 (disabled)

• B11 - B7 Dither Amplitude: Setting for the amplitude of the dither waveform (see

Table 3), Default = 00

(Dither Disabled)

• B6 - B0 Dither Frequency: Setting for the frequency of the dither waveform (see

Table 4), Default = 00

(Dither Disabled)

Note: To disable the dither waveform, both the amplitude and frequency fields must be

set to zero. These fields must both be cleared in the same SPI communication frame.

Programming the frequency to zero when the amplitude is set to a non-zero value will

result in incorrect current regulation.

MISO

• B12 Enhanced Dither: Contents of the ED bit of the dither configuration register

• B11 - B7 Dither Amplitude: Contents of the dither amplitude register

(shadow register)

• B6 - B0 Dither Frequency: Contents of the dither frequency register (shadow register)

Note: When a Dither Configuration command is received which changes either the dither

frequency or the dither amplitude settings, the new dither waveform

characteristics will take effect at the beginning of the next dither period.