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MT7697D 数据表(PDF) 47 Page - List of Unclassifed Manufacturers

部件名 MT7697D
功能描述  Internet-of-Things Wireless Connectivity
PDF  84 Pages
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

MT7697D 数据表(HTML) 47 Page - List of Unclassifed Manufacturers

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MT7697D
Internet-of-Things Wireless Connectivity
© 2016 MediaTek Inc.
Page 47 of 84
This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
I2S_FS
I2S_TX/RX
L[15]
L[14]
L[13]
L[2]
L[1]
…
L[0]
R[15] R[14] R[13]
R[2]
R[1]
…
R[0]
I2S_BCLK
…
…
R[0]
1T delay
Left channel
Right channel
1/SR
Figure 2-20. I2S Signal Waveform
2.5.8
Pulse Width Modulation (PWM)
MT7697D features 28 generic PWMs to generate pulse sequences with programmable frequency and
duration for LCD, vibrators, and other devices. The PMU features three configurable pattern options.
Table 2-20. PWM Modes
Mode
Description
Waveform
1
Basic PWM:
LED ON time (duration) and LED
OFF time (duration) are
configurable.
LED ON
Time
LED OFF
Time
LED ON
LED OFF
2
Two-State PWM:
There are two configurable states
(S0 and S1) for PWM LED.
S0
S1
S0 Lastingtime
3
Two-State replay mode:
User can set replay mode with
specified S1_Lasting_Time. PWM
LED would act as
[S0àS1àS0àS1àS0…] with
period time of (S0_Lasting_Time +
S0
S1
S0 Lastingtime
S1 Lastingtime
S0
S0 Lastingtime
replay



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