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DA7281-00FVC bảng dữ liệu(PDF) 33 Page - Renesas Technology Corp

tên linh kiện DA7281-00FVC
Giải thích chi tiết về linh kiện  LRA/ERM Haptic Driver with Multiple I²C Addresses, Integrated Waveform Memory, and Wideband Support
PDF  88 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

DA7281-00FVC bảng dữ liệu(HTML) 33 Page - Renesas Technology Corp

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DA7281
LRA/ERM Haptic Driver with Multiple I²C
Addresses, Integrated Waveform Memory, and
Wideband Support
Datasheet
Revision 3.1
10-Feb-2022
CFR0011-120-00
33 of 87
© 2022 Renesas Electronics
FULL_BRAKE_THR. If ACCELERATION_EN = 0, then zero drive corresponds to 0 % duty cycle +
FULL_BRAKE_THR. For further explanation, see Figure 30 and Figure 31.
I
2C write to stop driving
I
2C writes to start driving
Apply PWM signal
to GPI/PWM pin
Output starts
switching
Write
OPERATION_
MODE = 2
IDLE/STANDBY
DRIVE
Write
OPERATION_
MODE = 0
DA7281
stops
driving
Change the duty
cycle of the PWM
signal
Drive
amplitude
changes
Figure 14: Operation in PWM Mode
5.6.5.4
Register Triggered Waveform Memory (RTWM) Mode
The following registers should be set up prior to operation in RTWM mode:
● Set FREQ_WAVEFORM_TIMEBASE according to the minimum or maximum sequence timebase
required.
● Set SNP_MEM_x (where x = 0 to 99), see Section 5.8.
● If custom waveform sequences are required, see Section 5.7.5.
● Set WAV_MEM_LOCK = 0 to prohibit access to the waveform memory if required.



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