Infineon Cypress CYW43353 Manual page 54

The key PHY features include:
Programmable data rates from MCS0–9 in 20 MHz, 40 MHz, and 80 MHz channels, as specified in IEEE 802.11ac
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Supports Optional Short GI mode in TX and RX
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TX and RX LDPC for improved range and power efficiency
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Supports optional space-time block code (STBC) receive of two space-time streams for improved throughput and range in fading
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channel environments.
All scrambling, encoding, forward error correction, and modulation in the transmit direction and inverse operations in the receive
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direction.
Supports IEEE 802.11h/k for worldwide operation
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Advanced algorithms for low power, enhanced sensitivity, range, and reliability
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Algorithms to improve performance in presence of Bluetooth
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Automatic gain control scheme for blocking and non blocking application scenario for cellular applications
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Closed loop transmit power control
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Digital RF chip calibration algorithms to handle CMOS RF chip non-idealities
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On-the-fly channel frequency and transmit power selection
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Supports per packet RX antenna diversity
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Available per-packet channel quality and signal strength measurements
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Designed to meet FCC and other worldwide regulatory requirements
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Filters and Radio
Comp
Radio Control Block
AFE and
Radio
Common Logic Block
Filters and Radio Comp
Document Number: 002-14949 Rev. *G
PRELIMINARY
Figure 27. WLAN PHY Block Diagram
Frequency and
Timing Synch
Carrier Sense, AGC, and
Rx FSM
Buffers
Tx FSM
PA Comp
CCK/DSSS Demodulate
OFDM Demodulate Viterbi Decoder
FFT/IFFT
Modulation and
Coding
Modulate/Spread
CYW43353
Descramble and
Deframe
MAC
Interface
Frame and
Scramble
COEX
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