DRV2605L-Q1 Datasheet, PDF (39/67 Pages) Texas Instruments – Automotive Haptic Driver for LRA and ERM

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DRV2605L-Q1
SLOS874A – OCTOBER 2015 – REVISED OCTOBER 2015
7.6.11 Audio-to-Vibe Control (Address: 0x11)
Figure 39. Audio-to-Vibe Control Register
7
6
5
4
3
2
1
0
Reserved
ATH_PEAK_TIME[1:0]
ATH_FILTER[1:0]
R/W-0
R/W-1
R/W-0
R/W-1
Table 14. Audio-to-Vibe Control Register Field Descriptions
BIT FIELD
7-4 Reserved
3-2 ATH_PEAK_TIME[1:0]
1-0 ATH_FILTER[1:0]
TYPE DEFAULT DESCRIPTION
R/W
1
R/W
1
This bit sets the peak detection time for the audio-to-vibe signal path:
0: 10 ms
1: 20 ms
2: 30 ms
3: 40 ms
This bit sets the low-pass filter frequency for the audio-to-vibe signal path:
0: 100 Hz
1: 125 Hz
2: 150 Hz
3: 200 Hz
7.6.12 Audio-to-Vibe Minimum Input Level (Address: 0x12)
Figure 40. Audio-to-Vibe Minimum Input Level Register
7
6
5
4
3
ATH_MIN_INPUT[7:0]
R/W-0
R/W-0
R/W-0
R/W-1
R/W-1
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
2
R/W-0
1
R/W-0
0
R/W-1
Table 15. Audio-to-Vibe Minimum Input Level Register Field Descriptions
BIT FIELD
7-0 ATH_MIN_INPUT[7:0]
TYPE
R/W
DEFAULT DESCRIPTION
0x19
This bit sets the minimum voltage level at the IN/TRIG pin that is detected by
the audio-to-vibe engine. Levels below this are ignored.
ATH_MIN_INPUT Voltage (V_PP) = ATH_MIN_INPUT[7:0] × 1.8 V / 255
7.6.13 Audio-to-Vibe Maximum Input Level (Address: 0x13)
Figure 41. Audio-to-Vibe Maximum Input Level Register
7
6
5
4
3
2
1
0
ATH_MAX_INPUT[7:0]
R/W-1
Table 16. Audio-to-Vibe Maximum Input Level Register Field Descriptions
BIT FIELD
7-0 ATH_MAX_INPUT[7:0]
TYPE
R/W
DEFAULT DESCRIPTION
0xFF
This bit sets the full-scale voltage level at the IN/TRIG pin for audio-to-vibe
mode.
ATH_MAX_INPUT Voltage (V_PP) = ATH_MAX_INPUT[7:0] × 1.8 V / 255
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