CHINA DRAGON TECHNOLOGY CDW4982660 CDW.4982660-00 User Manual

CHINA DRAGON TECHNOLOGY LIMITED CDW.4982660-00

User Manual

http://www.cdtech.cn 3 MODEL: CDW-4982660-00 1. Introduction Espressif Systems’ Smart Connectivity Platform (ESCP) of high performance wireless SOCs, for mobile platform designers, provides unsurpassed ability to embed Wi-Fi capabilities within other systems,at the lowest cost with the greatest functionality. 2. General Descriptions The CDW-4982660-00 offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. When The CDW-4982660-00 hosts the application, and when it is the only application processor in the device, it is able to boot up directly from an external flash. It has integrated cache to improve the performance of the system in such applications, and to minimize the memory requirements. Alternately, serving as a Wi-Fi adapter, wireless internet access can be added to any microcontroller-based design with simple connectivity through UART interface or the CPU AHB bridge interface. The CDW-4982660-00 on-board processing and storage capabilities allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. With its high degree of on-chip integration, which includes the antenna switch balun, power management converters, it requires minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area. Sophisticated system-level features include fast sleep/wake context switching for energy- efficient VoIP, adaptive radio biasing for low-power operation, advance signal processing, and spur cancellation and radio co-existence features for common cellular, Bluetooth, DDR, LVDS, LCD interference mitigation. 3. Features • 802.11 b/g/n protocol • Wi-Fi Direct (P2P), soft-AP • Integrated TCP/IP protocol stack • Integrated TR switch, balun, LNA, power amplifier and matching network
http://www.cdtech.cn 4 MODEL: CDW-4982660-00 •Integrated PLL, regulators, and power management units•+18dBm output power i n 802.11b mode•Integrated t emperature sensor•Supports a ntenna diversity•Power down leakage current of < 10uA•Integrated low power 32-bit CPU could be used as application processor•SDIO 2.0, SPI, UART•STBC, 1×1 MIMO, 2×1 MIMO•A-MPDU & A-MSDU aggregation & 0.4µs guard interval•Wake up and transmit packets in < 2ms•Standby power consumption of < 1.0mW (DTIM3) 4. Applications•Smart power plugs•Home automation•Mesh network•Industrial wireless control•Baby monitors•IP Cameras•Sensor networks•Wearable electronics•Wi-Fi location-aware devices•Security ID tags•Wi-Fi position system beacons
http://www.cdtech.cn 5 MODEL: CDW-4982660-00 5. Block Diagram6. General SpecificationCategoryParameterValueWi-Fi Standard 802.11 b/g/n Frequency 2412-2462MHzTx Power 802.11 b： 18dBm 802.11 g ：14dBm 802.11 n ：14dBm Rx Sensitivity 802.11 b ：(11Mbps) -86dbm 802.11 g ：(54Mbps) -72dbm 802.11 n ： (MCS7) -69dbm Antenna PCB Trace External I-PEX Connector Hardware Data Interface UART/I2C/ GPIO/PWM/SPI
http://www.cdtech.cn 6 MODEL: CDW-4982660-00 Operating Voltage 3.0~3.6V Peak Current Max.600mA Operating -20 ℃ - 70 ℃Storage -40 ℃ - 85 ℃Size 18.6x13x2.2mm External Interface N/A Software Wi-Fi Mode station/softAP/SoftAP+station Security WPA/WPA2 Encryption WEP/TKIP/AES Firmware UpgradeUART Flash Download Via Cloud Server SW Development Supports Cloud Server Development I SDK for custom Network Protocols IPv4，TCP/UDP/HTTP/FTP User Config AT Instruction Set(loud Server Android/ios App
http://www.cdtech.cn 7 MODEL: CDW-4982660-00 7. Current ConsumptionMode Min Typ Max Unit Transmit 802.11b, CCK 11Mbps, POUT=+17dBm 175 mA Transmit 802.11g, OFDM 54Mbps, POUT =+15dBm 145 mA Transmit 802.11n, MCS7, POUT=+13dBm 125 mA Receive 802.11b, packet length=1024 byte, -80dBm 55 mA Receive 802.11g, packet length=1024 byte, -70dBm 56 mA Receive 802.11n, packet length=1024 byte, -65dBm 56 mA Modem-Sleep 15 mA Light-Sleep 0.9 mA Deep-Sleep 10 uA Off 5 uA 1. Modem-Sleep requires the CPU to be working, as in PWM or I2S applications. According to802.11 standards (like U-APSD), it saves power to shut down the Wi-Fi Modem circuit whilemaintaining a Wi-Fi connection with no data transmission. E.g. in DTIM3, to maintain a sleep300ms-wake 3ms cycle to receive AP’s Beacon packages, the current is about 15mA2. During Light-Sleep, the CPU may be suspended in applications like Wi-Fi switch. Without datatransmission, the Wi-Fi Modem circuit can be turned off and CPU suspended to save power according tothe 802.11 standard (U-APSD). E.g. in DTIM3, to maintain a sleep 300ms-wake 3ms cycle to receiveAP’s Beacon packages, the current is about 0.9mA3. Deep-Sleep does not require Wi-Fi connection to be maintained. For application with long time lagsbetween data transmission, e.g. a temperature sensor that checks the temperature every 100s, sleep 300sand waking up to connect to the AP (taking about 0.3~1s), the overall average current is less than 1mA.
http://www.cdtech.cn 8 MODEL: CDW-4982660-00 8. Dimension & Pin Assignmentsmm 3.3VGPIO4GPIO0GPIO2GPIO15GNDGNDGPIO14GPIO12GPIO16CH_ENTOUTRSTTXDGNDRXDGPIO5GPIO1318.6015.007.453.103.70 3.700.900.551.101.527.90NO Na Description13.3V Power supply , 3.3V is required2 GPIO4 GPIO43 GPIO0 GPIO0 , SPI_CS24 GPIO2 GPIO2 , I2C_SDA5 GPIO15 GPIO15 , HSPI_CS 6 GND Ground connections7 GPIO13 GPIO13 , HSPI_D 8 GPIO5 GPIO59 RXD UART_RX , GPIO310 GND Ground connections11 TXD UART_TX , GPIO1 , SPI_CS1 12 RST External reset, active low13 TOUT 10 bit ADC 14 CHIP_EN Chip enable, Active h 15 GPIO16 Deep-Sleep Wake , GPIO1616 GPIO12 GPIO12 , HSPI_Q17 GPIO14 GPIO14 , I2C_SCL , HSPI_CLK 18 GND Ground connections
http://www.cdtech.cn 9 MODEL: CDW-4982660-00 9. Optimal PCB placement of the module
http://www.cdtech.cn 10 MODEL: CDW-4982660-00 10. Recommended Reflow ProfileReferred to IPC/JEDEC standard. Peak Temperature : <250°C Number of Times : 2 times ESD CAUTION The CDW-4982660-00 is ESD (electrostatic discharge) sensitive device and may be damaged with ESD or spike voltage. Although CDW-4982660-00 is with built-in ESD protection circuitry, please handle with care to avoid the permanent malfunction or the performance degradation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. 15.105 Information to the user. (b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The module should not be installed and operated simultaneously with other radios except additional RF exposure was evaluated for simultaneously transmission. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The final end product must be labelled in a visible area with the following: “Contains Transmitter Module ROW-CDW4982660”

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