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Feature

Implementation

Power supply

1. VBAT: 2.7 ~ 4.3V
2. VIO_1V8: 1.62~1.92V

Fast clock source

26MHz

Slow clock

32.768KHz

Temperature range

1、Normal operation: -40°C ~ +85°C

2、Storage temperature -55°C ~ +125°C

VIO_1V8 level

VIO_1V8 in the 1.8V domain

Package

LGA 82 pins

Processor

TI  WL1837

WLAN Features

General Features

1、 WLAN MAC baseband processor and RF transceiver which is IEEE802.11a/b/g/n compliant.

2、 WLAN 11n 40MHz(SISO) and 11n 20MHz

3、 Fully calibrated system. No production calibration required.

4、 IEEE Std. 802.11d, e, h, i, k, r, PICS compliant.

5、 Supports Cisco Client Extensions (CCX) standard

6、 New advanced co-existence scheme with BT and LTE.

7、 802.11v support for high-precision timing and location approximation.

8、 Supports 1 and 4 bit SDIO host interface, including high speed (HS) and V3 modes.

9、   Support 2.4G and 5GWIFI

10、  Support MIMO

Medium-Access Controller (MAC)

1、 Embedded ARMTM Central Processing Unit (CPU).

2、 Hardware-Based Encryption/Decryption Using 64-, 128-, and 256-Bit WEP, TKIP or AES Keys

3、 Supports requirements for Wireless Fidelity (WiFi) Protected Access (WPA and WPA2.0) and IEEE Std 802.11i [includes hardware-Accelerated Advanced-Encryption Standard (AES)]

4、 Designed to Work With IEEE Std 802.11x for Virtual Private Network (VPN) Solutions

2.4/5 GHz Radio

1、 Internal LNA and PA

2、 Supports : IEEE Std 802.11a, 802.11b, 802.11g and 802.11n

BT features

General Features

1、 Supports Bluetooth 4.0 BLE.

2、 Includes built-in coexistence and prioritization handling for BT, BLE, ANT, WLAN and LTE.

3、 TI-proprietary low-power scan achieves paging and inquiry scans with fast RSSI algorithm, at 1/3 normal power.

Advance audio interfaces and capabilities

1、 Assisted A2DP (A3DP) support – SBC encoding implemented internally – per BT specification.

2、 Assisted WB-Speech (AWBS) support – modified SBC codec implemented internally.

BLE features

1、 Fully compliant with BT 4.0 BLE dual mode standard.

2、 Support for all roles and role-combinations, mandatory as well as optional.

3、 TI BLE solution optimized for the fitness, health and proximity use-cases.

4、 Supports large number of multiple connections (up to 10).

5、 Multiple sniff instances are tightly coupled to achieve minimum power consumption.

6、 Independent buffering for LE allows having large number of multiple connections without affecting BR/EDR performance

FM Features

FM features

1、 Full-featured FM and R (B) DS receive/transmit capability (half-duplex) with best-in-class Audio SNR, Audio/RDS sensitivity levels and current consumption.

2、 FM Rx support for Europe/US (87.5 to 108 Mhz) and Japan (76 to 90 Mhz) FM bands with 50 kHz channel step size.

3、 FM Rx support for the OIRT (65.8 to 74 Mhz) band with 10 kHz channel step size.

4、 Weather Band (162.4 – 162.55 Mhz) emergency alert reception supported with very low Sniff Power.

5、 Integrated frequency synthesizer with no external components required..

6、 Fast and accurate FM Rx autonomous scan with a band scan time under 2 seconds.

7、 Tunable matching for Rx headset wire (low Q) antenna and internal (high Q) Rx antenna.

8、 RF signal level dependant mono-stereo blending and soft mute feature for improved user perception at low signal levels.

9、 Automatic framing for RDS PS and RT messages including a configurable scrolling mechanism for long PS messages, in addition to complete control over RDS transmissions with host-side framing option.

10、 Flexible internal audio level measurement and audio activity indication to aid in interface connectivity checks and other enhancements