MT7697 datasheet(55/81 Pages) ETC2

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MT7697

Internet-of-Things Wireless Connectivity

Page 55 of 81

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.



Bluetooth and Bluetooth low energy dual mode



Single-ended, RF port with integrated Balun and T/R switch



Integrated high efficiency PA



Baseband and radio BDR and EDR packet types: 1Mbps (GFSK), 2Mbps (π/4-DQPSK), and

3Mbps (8PSK).



Fully functional Bluetooth baseband: AFH, forward error correction, header error control,

access code correlation, CRC, whitening.



Standard pairing, authentication, link key, and encryption operation.

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Standard power saving mechanisms: sniff mode and sniff-subrating.

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Interlaced scan for faster connection setup

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Full master and slave piconet support

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Up to seven simultaneous active ACL connections with background inquiry and page scan

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Scatternet support

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Channel quality driven data rate control

2.9

RTC

MT7697 features one RTC (Real Time Clock) module. The clock source is the 32.768 KHz Crystal or an

external clock source. RTC has built in an accurate timer to wake up the system when it expires.

RTC uses a different power rail from PMU. In the hibernate mode, the PMU is turned off while the

RTC module is remained powered on. The RTC module only consumes 3uA in hibernate mode.

RTC has a dedicated PMU control pin PMU_EN_RTC (pin 23) used to turn on the power to the chip

when the RTC timer expires and turn off the power to the chip when it intends to enter the hibernate

mode.

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