SG901-1071-ET

SG901-1071 SG901-1071 Miniature Wi-Fi Radio Overview Features The SG901-1071 WiFi module is optimized to simplify successful integration into systems requiring the latest performance with small size. This module is a highly integrated single chip based 802.11b/g/n WLAN radio for embedded, low-power and extremely small form factor mobile applications. The product conforms to the IEEE 802.11B, G, and N protocols operating in the 2.45GHz ISM frequency band supporting 802.11n modulations up to 72.2Mbps, all 802.11g OFDM modulations, and all mandatory 802.11b modulations. • • • • • • The SG901-1071 is a fully integrated wireless radio including RF Synthesizer/VCO, high-speed data converters, digital baseband processor, onboard MAC and PHY processors, Power Management, Power Amplifier, and LNA. An on-board EEPROM stores calibration data for alignment-free integration. No customer calibration required. Bluetooth integration features of the radio are made available. An on-board crystal and filter simplify system integration. The addition of 1.8V, 3.3V, and VIHO supplies, Antenna, and host communication, provides a complete WiFi solution. For maximum flexibility, the SG901-1071 can be optionally supplied without internal oscillator and accept a wide range of external reference clock frequencies. Host control is provided by either an SDIO or SPI interface. • • • • • • • • Very Small Footprint (12.0 x 9.5 x1.7mm) Factory Calibrated RoHs Compliant Fully Integrated 802.11 System Solution Ultra Low Current Consumption, 2.5 m A DITM = 1 Fully Compliant with the IEEE 802.11B,G, and N WLAN Standards Support for 802.11n Modulations up to 72.2Mbps, and all 802.11g and Mandatory 802.11b Modulations Intelligent Power Control, Including 802.11 Power Save Mode Supports SPI Interface and SDIO Interface Factory Support for Linux 2.6/Android, Windows CE Source Code Available for porting to RTOS or Custom OS Hardware driver is provided under GPL Flexible I/O Voltage Contact Factory for FCC compliant applications Applications • Hand-held Devices • Embedded Systems • Portable Systems • Point of Sale terminals • Personal Digital Assistants (PDA) • Cameras • Cable Replacement Ordering Information Packaging Temp Range Part Number Tape and Reel Extended SG901-1071-ET-TR Bulk Extended SG901-1071-ET-BLK Tape and Reel Commercial SG901-1071-CT-TR Bulk Commercial SG901-1071-CT-BLK Evaluation Kit Available This EVK supports embedded software development. EVK for 1071 1-321-255-0515 WWW.SAGRAD.COM SG923-0007 DOC#: SG914-0023 rev. 1.1 SG901-1071 Block Diagram 1.8V Antenna Connection Timebase VHIO Voltage 3.3V Supply Inputs Power Management Unit LNA +Power Amplifier ZIF Transceiver BB Baseband Processor Processor MAC Host Interface Connection To HOST SPI/SDIO High-Speed Data Converters Optional Bluetooth 1-321-255-0515 WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1 SG901-1071 General Electrical Specifications Parameter Test Condition / Comment Min. Typ. Max. Units Absolute Maximum Ratings 3.0V Supply -0.3 3.6 V VLDO Supply -0.3 2.5 V -30 85 °C 70 °C 3.6 V Operating Conditions and Input Power Specifications Operating Temperature Range Input Supply Voltage 3.3V Supply Standby Mode Current Power Save Mode Current ET Version (Extended Temperature) CT Version (Commercial Temperature) 3.3V Supply input 0 2.7 32.768kHz Mode 270 uA DTIM = 1 2.5 mA Peak TX Current Power Save Mode Settling Times VHIO Supply 3.3 270 mA Peak RX Current Processing Beacons 82 mA Peak RX Current Processing OFDM Packets 135 mA mS Wake up Time From 32.768KHz Mode 5 Ramp up To Processing Beacons 360 uS Ramp Down To Stand By 32.768KHz mode 760 uS Input Supply Voltage VHIO input supply determines Host CMOS logic levels 1.7 3.3 V Input Supply Current VHIO = 1.8V 1 mA Standby Mode Current VHIO = 1.8V 100 uA VLDO Supply Input Supply Voltage Required Internal regulator supply input Input Voltage Levels VIL Output Voltage Levels VIH VOL IOL = 8.0mA VOH IOH = -8.0mA Input Capacitance 1-321-255-0515 WWW.SAGRAD.COM 1.45 2.0 V -0.3 0.25VHIO V 0.625VHIO VHIO+0.3 V 0.4 V 0.75VHIO VHIO V 1.0 5.0 pF DOC#: SG914-0023 rev. 1.1 SG901-1071 RF Characteristics (Max and Min based on temperature range) Parameter Test Condition / Comment Min. Antenna Port Impedance CH1 to CH14 -9.5 Maximum Input Signal Adjacent Channel Rejection dB dBm -96.3 11b, 2 Mbps -94 -93.5 -91 dBm 11b, 5.5 Mbps -93 -91 -88 dBm 11b, 11 Mbps -89 -86.7 -85 dBm 11g, 9Mbps -92 -89.6 -88 dBm 11g, 18Mbps -87 -85.9 -84 dBm 11g, 36Mbps -80 -78.6 -77 dBm 11g, 54Mbps -74 -72.4 -70 dBm 11n, MCS1 -86 dBm 11n, MCS3 -80 dBm 11n, MCS5 -72 dBm -69 CH1 to 14 11g, 54Mbps 10% PER -0.7 CH7 11g, 54Mbps -19 dBm 0.7 dB -16 dBm 1Mbps 50 11Mbps 47 9Mbps 25 dB 54Mbps 13 dB MCS1 24 dB MCS7 5 dB 11b, 11Mbps 1-321-255-0515 -14 -95 -97 11b, 1Mbps TX Output Power Units Ohms 11b, 1Mbps 11n, MCS7 Channel to Channel De-sensitivity Max. 50 Antenna Input Return Loss RX Sensitivity Typ. 11g, 9Mbps @802.11b spectral mask @802.11g spectral mask 15 16.5 19.1 15.5 16.2 19.4 dBm dBm 17 18.2 19.5 dBm 11.7 13.4 15.1 11g, 54Mbps EVM = -27dB, 4.5% 802.11n MCS1 @802.11n spectral mask 17 dBm 802.11n MCS7 EVM = -27dB 13 dBm WWW.SAGRAD.COM dBm DOC#: SG914-0023 rev. 1.1 SG901-1071 Pinout List SIGNAL NAME PIN NUMBER DESCRIPTION NOTES Reference Clock Pins OSC_EN 4 Oscillator Enable Output not normally used – Contact Sagrad for options REF_CLK 19 Reference Oscillator Input normally not connected - Contact Sagrad for options RF Pins BTH 13 Bluetooth RF Switched RF Connection RF Connection for Input - Output 2G4_RF 16 Wi-Fi / Bluetooth Antenna Port, 50 ohms Careful RF design is needed for this and nearby ground Serial Interface Pins (VHIO Domain, logic levels compatible with the VHIO (Pin 32) input voltage) SDCMD 25 SPI MOSI (input) SDIO CMD VHIO Domain SDCLK 26 SPI Clock Input SDIO CLK VHIO Domain SDD0 24 SPI MISO (output) SDIO Data 0 VHIO Domain SDD1 23 SPI: Interrupt Output SDD2 22 SDD3 21 SPI Chip Select Input POWERUP 5 Power Up Enable (from Host) SDIO Data 1 VHIO Domain SDIO Data 2 VHIO Domain SDIO Data 3 VHIO Domain Control Pins VLDO Domain with internal pull up High = operating, Low = off RSTn 31 Reset Input VHIO Domain – Active Low reset SLEEPCLK 33 32.768 kHz Sleep Clock Input VHIO Domain DBG_SPI_CSn 27 Debug SPI Chip Select Input VHIO Domain DBG_SPI_CLK 30 Debug SPI Clock Input VHIO Domain DBG_SPI_MISO 28 Debug SPI Data Output VHIO Domain DBG_SPI_MOSI 29 Debug SPI Data Input VHIO Domain Bluetooth Coexistence Pins (VHIO Domain) WLAN_DENY 1 Bluetooth Coexistence VHIO Domain BT_ACTIVE 3 Bluetooth Coexistence VHIO Domain BT_PERIODIC 2 Bluetooth Coexistence VHIO Domain BT_STATUS 34 Bluetooth Coexistence VHIO Domain Power and Ground Pins VHIO 32 Supply Voltage for I/O's 1.7 to 3.3V, Internally decoupled with a 0.1uF capacitor VLDO 6 External regulator supply input 1.45 to 2.0V, Internally decoupled with a 2.4uF capacitor 3.0V 8 RF supply 2.7 to 3.3V, Internally decoupled with a 0.2uF capacitor GND 7, 9, 10, 11, 12, 14, 15, 17, 18, 20, 35 1-321-255-0515 Ground Connections WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1 SG901-1071 Software Support The 1071 and 1078 modules are supported through highly portable software. The hardware drivers and Wi-Fi stack as provided is compatible with Linux kernel 2.6. The source code for the hardware abstraction is available under a GPL license and is available from Sagrad. The licensed Wi-Fi licensed stack available from Sagrad is provided in binary form without a license. Source code for the Wi-Fi stack is available to the customer. To obtain source code for the stack contact Sagrad sales at www.sagrad.com. Software and source code are available free of charge but require a software license agreement for the Wi-Fi stack source. In almost all cases the GPL driver will need to be modified for the customer’s specific hardware. The WiFi stack will only need to be modified for compatibility to the customers OS and compiler. In many cases such as Linux near zero modification of the Wi-Fi stack will be required. The Wi-Fi module/stack currently is only tested in client mode and is compatible with any access point that meets 802.11 standards. An access point mode code base is planned in the future. The complete 802.11 stack requires about 350KB of space for the implementation of the entire specification. Extremely small versions can be created by knowledgeable customers but is a considerable task and requires detailed understanding of 802.11. As a service to customers, Sagrad offers extended technical support on a fee basis. 1-321-255-0515 WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1 SG901-1071 Software Details: MAC ■ Comprehensive MAC functionality according to IEEE 802.11-2007, including QoS traffic scheduling ■ Supports the following optional IEEE 802.11n features: MPDU aggregation MSDU aggregation Immediate Block Acknowledgement PSMP MTBA RIFS L-SIG TXOP protection Link adaptation using MCS feedback Encryption ■ Hardware encryption according to IEEE 802.11-2007 and IEEE 802.11w/D10.0: WEP40/64 WEP104/128 CCMP (AES) TKIP BIP ■ Hardware encryption support for SMS4 to supportWAPI ■ Hardware encryption support for Cisco® CKIP OS Support: Windows Mobile 7 and 6.x, Windows CE 6.1 and 5, Linux v2.6, Android Bluetooth Coexistence Feature Linux Bluetooth Coexistence PTA (802.15.2) Yes 802.11/BT on same Antenna Yes Data and Voice Simultaneously Yes Data and Data Simultaneously Yes Voice and Voice Simultaneously Yes 1-321-255-0515 WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1 SG901-1071 Recommended Layout PCB design requires detailed review of the center exposed pad. This pad requires good thermal conductivity. Soldering coverage should be maximized and checked via x-ray for proper design. There is a trade off in providing enough solder for conductivity, and too much which allows the module to “float” on the paddle creating reliability issues. Sagrad recommends two approaches, a large center via that allows excess soldering to flow down into the host PCB with smaller vias around it. Or many smaller vias with just enough space for the viscosity of the chosen solder/flux to allow some solder to flow into the smaller vias. Each of these approaches need to result in 60% or more full contact solder coverage on the paddle after reflow. Sagrad strongly encourages PCB layout teams to work with their EMS providers to insure vias and solder paste designs will result in satisfactory performance. Note Pin one is on the bottom left of this diagram and is enlarged. This view is viewed from the top. 1-321-255-0515 WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1 SG901-1071 Mechanical The nominal size of the part is 10x13mm with a height of 1.7mm Packaging The part comes packaged in Tape and Reel or bulk. 1-321-255-0515 WWW.SAGRAD.COM DOC#: SG914-0023 rev. 1.1