"

3. Functional Description

•

carrier leakage

•

I/Q phase matching

•

baseband nonlinearities

This reduces the amount of time and test equipment required for production testing.

3.5.4. Clock Generator

The clock generator produces quadrature 2.4 GHz clock signals for the receiver and

transmitter. All components of the clock generator are integrated on-chip, including:

•

inductor

•

varactor

•

loop filter

The clock generator has built-in calibration and self-test circuits. Quadrature clock phases

and phase noise are optimized on-chip with patented calibration algorithms to ensure the

best receiver and transmitter performance.

3.6. Bluetooth Co-Existence

ESP8089 features pre-assigned pins for BT/Wi-Fi co-existence and BT clock-request.

These pins act as the interface to a BT system to facilitate traffic arbitration between the

two systems. The control system is in firmware and supports various standards or

proprietary co-existence protocols.

3.7. Power Management

The chip can be put into the following states:

Espressif

" /"

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