TWFS-B005D User Manual 2
Description
-Model : TWFS-B005D
-WLAN : 802.11 a/b/g/n/ac
-Frequency Range : 2400MHz ~ 5835MHz
Features
-Dimension : 22.5mm x 20.0mm x 2.7mm
-Temperature Range : -20 ~ +85
-Supply Voltage : VBAT 3.3V to 3.9V
-Output Power
WLAN : 17.0dBm(b), 14dBm(g), 14dBm(n 2.4G), 13dBm(a), 12dBm(n 5G), 10dBm(ac) - Interface : SDIO(WLAN)
Application
-Home appliance (Outdoor Device)
Dimensions
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TWFS-B005D User Manual 2
• Power Supply Specification
One Buck regulator, multiple LDO regulators, and a power management unit(PMU) are integrated into the CYW88359.
All regulators are programmable via the PMU. These blocks simplify power supply design for WLAN functions in embedded designs.
A single VBAT(3.3V to 3.9V DC max) and VIO supply (1.8V to 3.3V) can be used, with all additional voltages being provided by the regulators in the CYW88359.
Three control signals, BT_REG_ON, WL_REG_ON, and WPT_REG_ON(that is, WPT_1P8), are used to power-up the regulators and take the respective section out of reset.
The CBUCK CLDO and LNLDO power up available. All regulators are powered down only when both BT_REG_ON an WL_REG_ON are de-asserted.
The CLDO and LNLDO may be turned off/on based on the dynamic demands of the digital baseband.
The CYW88359 allows for an extremely low power-consumption mode by completely shutting down the CBUCK, CLDO, and LNLDO regulators. When in this state, MEMLPLDO and LPLDO(which is a low-power linear regulator supplied by the system VIO supply) provide the CYW88359 with all the voltage it requires, further reducing leakage currents.
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TWFS-B005D User Manual 2
*Boot sequence
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TWFS-B005D User Manual 2
General Features
TWFS-B005D satisfies the following standards
1)WLAN RF band & modulation Features
•Dual-band 2.4GHz and 5GHz 802.11 a/b/g/n/ac(802.11ac compliant)
•Dual-stream up to 866Mbps data rate
•Supports 20, 40 and 80MHz channels with optional SGI(256 QAM modulation)
•Tx and Rx low-density parity check(LDPC)
•Supports IEEE 802.11ac/n beamforming
•Supports two antennas with WLAN MIMO
•Supports standard SDIO V3.0 (up to SDR104 mode at 208MHz, 4-bit and 1-bit)
•Backward compatibility with SDIO v2.0 host interface
•WPA and WPA2(Personal) support for powerful encryption and authentication
•AES and TKIP in hardware for faster data encryption and IEEE 802.11i compatibility
•Reference WLAN subsystem provides Wi-Fi protected Setup(WPS)
2)WLAN MAC features
•Enhanced MAC for supporting IEEE 802.11ac features
•Transmission and reception of aggregated MPDUs(A-MPDU) for high throughput(HT)
•Support for power management schemes, including WMM power-save multipoll(PSMP) and multiphase PSMP operation
•Support for immediate ACK and block-ACK policies
•Inter-frame space timing support, including RIFS
•Back-off counters in hardware for supporting multiple priorities as specified in the WMM specification
•Timing synchronization function(TSF), network allocation vector(NAV) maintenance, and target beacon transmission time(TBTT) generation in hardware
•Hardware offload for AES-CCMP, legacy WPA TKIP, legacy WEP ciphers, WAPI, and support for key management
•Programmable independent basic service set(IBSS) or infrastructure basic service set functionality
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