1 Features
  Integrates Broadcom solutions of CYW43438_A1 WiFi /BT/FM RX SoC
  SDIO v2.0 interfaces support for WLAN
  High speed UART and PCM for Bluetooth
  Lead-free Design
  12.0mm(L) x 12.0mm(W) x 1.5 mm(H) 47 pin LGA package
  Without Crystal(XTAL)
1.1 WLAN
  Single band 2.4 GHz 802.11 b/g/n
  WLAN host interface options
  SDIO v2.0, including DS and HS modes
  Security–WEP, WPA/WPA2 (personal), AES (HW), TKIP (HW), CKIP (SW), WMM/WMM-PS/WMM-SA
1.2.2 Bluetooth
  Supports extended Synchronous Connections (eSCO), for enhanced voice quality by allowing for retransmission
of dropped packets
  Adaptive Frequency Hopping (AFH) for reducing radio frequency interference
  Maximum UART baud rates up to 4 Mbps
  Supports all Bluetooth 4.2 packet types
  Fully supports Bluetooth Core Specification version 4.2 + (Enhanced Data Rate) EDR features:
  Adaptive Frequency Hopping (AFH)
  Quality of Service (QoS)
  Extended Synchronous Connections (eSCO) — Voice Connections
  Fast Connect (interlaced page and inquiry scans)
  Secure Simple Pairing (SSP)
  Sniff Subrating (SSR)
  Encryption Pause Resume (EPR)
  Extended Inquiry Response (EIR)
  Link Supervision Timeout (LST)
  Interface support – Host Controller Interface (HCI) using a high-speed UART interface and PCM for audio data