CW1250 - IEEE 802.11abgn WLAN

The CW1250 is a single-chip Wi-Fi device with integrated power amplifier (PA) that reduces footprint and increases battery life for mobile devices. Advanced features extend range and performance in multi-radio platforms. It is housed in a WLCSP package with an integrated SMPS, and delivers a world class application area of less than 60 mm².

Key Features

• Single-chip dual-band 2.4GHz/5GHz IEEE802.11abgn
• Ultra low power static consumption coupled with fast and reliable access point (AP) association for lowest energy usage
• Comprehensive peer-to-peer connectivity support for Wi-Fi Direct and TDLS
• Enhanced Bluetooth coexistence – ePTA
  • Plus IEEE 802.15.2 4-wire modes for Bluetooth and WiMAX
• SDIO and SPI interfaces
• Integrated +23 dBm PA
• Compact footprint
  • Small WLCSP package and high levels of integration
• SMPS DC-DC direct battery connection
  • Capacity for additional connectivity devices such as Bluetooth, FM, GPS and NFC
  • Integrated linear regulators allow 1.8 V supply if available
• Host offloading of beacon and packet processing
• Calibration-free manufacture
• Extensive coverage of IEEE 802.11 extensions for QoS, security and international roaming
  • 802.11i, WPA /WPA2 personal and enterprise
  • WEP, WAPI and CCX™ client security
  • 802.11e, WMM and WMM-PS
  • CCX™ client QoS
  • 802.11r fast roaming
  • 802.11k radio performance
  • 802.11w management frame protection
  • 802.11d regulatory domain
  • 802.11h 5 GHz TPC/DFS
• Flexible platform clock support
  • Digital or sine-wave input supports a wide range of frequencies
  • Direct external crystal input reference clock

Key benefits

• Low power consumption and host offloading for longer battery life
• Integrated high output power PA delivers link quality in noisy environments to enable better VoIP experience.
• Available as a complete WLAN-GPS-Bluetooth-FM subsystem with ST-Ericsson’s CG2900 GPS-Bluetooth-FM device providing enhanced Bluetooth-WLAN coexistence using ST-Ericsson ePTA protocol
• High level of integration and small package size enable applicability in low-end phones with sleek and thin form factor

Connection Diagram

 

Applications

The CW1250 is an IEEE 802.11a/b/g/n WLAN single-chip solution and is fully optimized for mobile applications such as mobile phones, PDAs and portable media players.

Extremely low power consumption and intelligent host offloading of beacon and packet processing ensures industry-leading battery life. High levels of integration allow for very compact and cost-effective reference designs providing fast time to market for new WLAN-enabled products.

Building on its successful predecessors, such as the CW1200, the CW1250 integrates a power amplifier with higher Tx output power and reduced power consumption, a switch-mode power supply and an enhanced Bluetooth coexistence interface.

Being an ideal partner to ST-Ericsson’s CG2900 GPS/Bluetooth/FM, the CW1250 uses simultaneous receive and enhanced Bluetooth/WLAN coexistance to provide superior performance and flexibility to single-chip Bluetooth/WLAN solutions.

The CW1250 also offers standard PTA supporting a wide range of Bluetooth or WiMAX solutions. The integrated SMPS can support GPS, Bluetooth, FM and other connectivity devices reducing overall BOM costs.

A comprehensive suite of software is provided, including proven drivers for Android, Linux and Windows Phone, along with production test and engineering software utilities.