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ESP8089 데이터시트(HTML) 10 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

부품명 ESP8089
상세내용  The ESP8089 offers a complete and self-contained Wi-Fi networking solution
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제조사  ESPRESSIF [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.]
홈페이지  https://www.espressif.com/
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ESP8089 데이터시트(HTML) 10 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

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3. Functional Description
3.5. Radio
The ESP8089 radio consists of the following main blocks:
2.4 GHz receiver
2.4 GHz transmitter
High-speed clock generators and crystal oscillator
Real-time clock
Bias and regulators
Power management
3.5.1. Channel Frequencies
The RF transceiver supports the following channels according to the IEEE 802.11 b/g/n
standards.
3.5.2. 2.4 GHz Receiver
The 2.4 GHz receiver downconverts the RF signal to quadrature baseband signals and
converts them to the digital domain with two high-resolution high-speed ADCs. To adapt to
varying signal channel conditions, RF filters, automatically-gained control, DC offset
cancelation circuits and baseband filters are integrated into the radio.
3.5.3. 2.4 GHz Transmitter
The 2.4 GHz transmitter upconverts the quadrature baseband signals to 2.4 GHz, and
drives the antenna with a high-powered CMOS power amplifier. The use of digital
calibration further improves the linearity of the power amplifier, enabling a state of art
performance of delivering +20.5 dBm average power for 802.11 b transmission and +16
dBm for 802.11 n transmission.
Additional calibrations are integrated, in order to cancel any imperfections of the radio. The
calibrations include the following:
Table 3-3. Channel Frequencies
Channel No.
Frequency (MHz)
Channel No.
Frequency (MHz)
1
2412
8
2447
2
2417
9
2452
3
2422
10
2457
4
2427
11
2462
5
2432
12
2467
6
2437
13
2472
7
2442
14
2484
Espressif
" /"
7 17
2017.06


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