YL43455 IEEE 802.11a/b/g/n/ac Wireless LAN, Bluetooth and FM Receiver Combo Stamp Module
1. General Description
The YL43455 IEEE 802.11 a/b/g/n/ac SDIO Wi-Fi with Bluetooth and FM receiver combo stamp module is a highly integrated wireless local area network (WLAN) solution designed to enable users to enjoy digital content through the latest wireless technology without extra cables and cords. It integrates Bluetooth, providing a complete 2.4GHz Bluetooth system fully compliant with Bluetooth and SDIO v3.0, supporting EDR of 2Mbps and 3Mbps for data and audio communications. This module offers a high-performance, cost-effective, low-power, compact solution that easily fits onto SDIO and UART stamp modules. Compliant with the IEEE 802.11a/b/g/n/ac standard, the YL43455 utilizes Direct Sequence Spread Spectrum (DSSS), Orthogonal Frequency Division Multiplexing (OFDM), BPSK, QPSK, CCK, and QAM baseband modulation technologies. Its high level of integration and full implementation of power management functions specified in the IEEE 802.11 standard minimize system power requirements. The YL43455 module is based on the BCM43455 single chip solution.
2. Key Features
- High-speed wireless connection up to 433.3Mbps for Wi-Fi
- 1 (Transmit) × 1 (Receive) Wi-Fi and Bluetooth
- Low power consumption and high performance
- Enhanced wireless security
- Fully qualified Bluetooth
- Enhanced Data Rate (EDR) compliant for both 2Mbps and 3Mbps supported
3. Specifications Table
| Parameter | Value |
|---|---|
| Model Name | YL43455 |
| Description | Wireless LAN & Bluetooth Stamp Module |
| WLAN Standard | IEEE 802.11 a/b/g/n/ac |
| Bluetooth Standard | Bluetooth 2.1+Enhanced Data Rate (EDR)+ BLE(1M) |
| Major Chipset | BCM43455 |
| Host Interface | Wi-Fi : SDIO, BT : UART |
| Dimensions | 12mm * 12mm * 2.0mm |
| Operating Conditions - Voltage | Power supply for host: 3.3V |
| Operating Conditions - Temperature | -40°C ~ 85°C |
| Operating Conditions - Storage temperature | -45°C ~ 135°C |
| Electrical Specifications - Frequency Range (WLAN) | 2.4 GHz ISM Bands 2.412-2.462 GHz; 5G: 5.150~5.250GHz, 5.250~5.350GHz, 5.47~5.725GHz, 5.725~5.85GHz |
| Electrical Specifications - Frequency Range (Bluetooth) | 2402~2480MHz |
| Electrical Specifications - Modulation (WLAN) | DSSS, OFDM, DBPSK, DQPSK, CCK, 16-QAM, 64-QAM, 256-QAM |
| Electrical Specifications - Modulation (Bluetooth) | GFSK (1Mbps), π/4 DQPSK (2Mbps) and 8DPSK (3Mbps) |
| Electrical Specifications - Output Power (WLAN) | 2412-2462MHz: 15.55dBm; 5150-5250MHz: 14.12dBm; 5250-5350MHz: 14.38dBm; 5470-5725MHz: 12.04dBm; 5725-5850MHz: 13.37dBm |
| Electrical Specifications - Output Power (BT) | 2402-2480MHz: 7.74dBm |
| Electrical Specifications - Data Rates (WLAN) | 802.11b: 1, 2, 5.5, 11Mbps; 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54Mbps; 802.11n: up to 75Mbps-single; 802.11n: up to 150Mbps; 802.11ac: up to 96Mbps (20MHz channel); 802.11ac: up to 200Mbps (40MHz channel); 802.11ac: up to 433Mbps (80MHz channel) |
| Electrical Specifications - Data Rates (Bluetooth) | Bluetooth 2.1+EDR data rates of 1, 2, and 3Mbps |
| Electrical Specifications - Security | WAPI; WEP 64-bit and 128-bit encryption with H/W TKIP processing; WPA/WPA2 (Wi-Fi Protected Access); WMM/WMM-SA/WMM-PS (U-APSD); AES-CCMP hardware implementation as part of 802.11i security |
| Operating System Compatibility | TBD |
4. Electrical Characteristics
4.1 Absolute Maximum Ratings
| Symbol | Parameter | Maximum | Unit |
|---|---|---|---|
| VBAT | 3.3V power supply voltage | 5.25 | V |
| VDDIO | Voltage supply for GPIO | 3.9 | V |
| RFin | Maximum RF input (reference to 50 Ω) | TBD | dBm |
4.2 Recommended Operating Conditions
| Symbol | Parameter | Rating | Unit |
|---|---|---|---|
| VDD | 3.3V power supply voltage | 3.2~4.8 | V |
| VDDIO | Voltage supply for GPIO | 1.62~3.63 | V |
4.3 GPIO DC Characteristics
| Symbol | Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|---|
| VIH | Input high voltage | 0.65×VDDIO | -- | VIO+0.3 | V |
| VIL | Input low voltage | -- | -- | 0.35×VIO | V |
| VOH | Output high voltage | VIO-0.45 | -- | VIO | V |
| VOL | Output low voltage | 0 | -- | 0.45 | V |
5. Pin Definition
The module features a 44-pin configuration. The following table details the pin assignments, their basic descriptions, and types (Input/Output, Power, Ground, Floating).
| Pin No. | Definition | Basic Description | Type |
|---|---|---|---|
| 1 | GND | GROUND | GND |
| 2 | WL_BT_ANT | Wi-Fi/BT RF signal | I/O |
| 3 | GND | GROUND | GND |
| 4 | NC | Floating Pin, No connect to anything. | Floating |
| 5 | NC | Floating Pin, No connect to anything. | Floating |
| 6 | Host_Wakeup_BT/GPIO34 | Host wakeup BT device | IN |
| 7 | BT_wakeup_Host | BT Device wakeup Host | I/O |
| 8 | TMS | Reserve for EJTAG | I/O |
| 9 | VDD | DC power supply +3.3V input | VCC |
| 10 | NC | Floating Pin, No connect to anything. | Floating |
| 11 | NC | Floating Pin, No connect to anything. | Floating |
| 12 | WL_EN | GPIO pin to on/off the Wi-Fi function by software. Active high. Reserve pull high 100K resistor and shunt 100pF capacitor to GND on platform. | IN |
| 13 | WL_wakeup_Host/GPIO35 | WLAN device wakeup host | OUT |
| 14 | SDIO_DATA2 | SDIO Data Line 2 | I/O |
| 15 | SDIO_DATA3 | SDIO Data Line 3 | I/O |
| 16 | SDIO_CMD | SDIO Command Input | I/O |
| 17 | SDIO_CLK | SDIO Clock Input | IN |
| 18 | SDIO_DATA0 | SDIO Data Line 0 | I/O |
| 19 | SDIO_DATA1 | SDIO Data Line 1 | I/O |
| 20 | GND | GROUND | GND |
| 21 | CLK_REQ/GPIO11 | Clock request output | DO |
| 22 | VDDIO | 1.8V-3.3V VDDIO supply for WLAN and BT | VCC |
| 23 | NC | Floating Pin, No connect to anything. | Floating |
| 24 | LPO | External low-power 32.768KHz clock input. | IN |
| 25 | PCM_OUT | PCM synchronous data output, connected to PCM_IN on the host. | OUT |
| 26 | PCM_CLK | PCM Clock | I/O |
| 27 | PCM_IN | PCM synchronous data input, connected to PCM_OUT on the host. | IN |
| 28 | PCM_SYNC | PCM synchronous data SYNC | I/O |
| 29 | TDI | Reserve for EJTAG | IN |
| 30 | TDO | Reserve for EJTAG | OUT |
| 31 | GND | GROUND | GND |
| 32 | TCK | Reserve for EJTAG | GND |
| 33 | GND | GROUND | GND |
| 34 | BT_EN | GPIO pin to on/off the BT function by software. Active high. Reserve pull high 100K resistor and shunt 100pF capacitor to GND on host. | IN |
| 35 | NC | Floating Pin, No connect to anything. | Floating |
| 36 | GND | GROUND | GND |
| 37 | NC | Floating Pin, No connect to anything. | Floating |
| 38 | NC | Floating Pin, No connect to anything. | Floating |
| 39 | Debug_UART_TXD | TXD for Wi-Fi Uart_debug only, connected to RXD of the host. | OUT |
| 40 | Debug_UART_RXD | RXD for Wi-Fi Uart_debug only, connected to TXD of the host. | IN |
| 41 | UART_RTS | UART Ready To Send, connected to CTS on the host. | OUT |
| 42 | UART_TXD | UART Transmit Data, connected to RXD on the host. | OUT |
| 43 | UART_RXD | UART Receive Data, connected to TXD on the host. | IN |
| 44 | UART_CTS | UART Clear To Send, connected to RTS on the host. | IN |
6. Mechanical Information
The YL43455 module is a compact stamp module with dimensions of 12mm x 12mm and a thickness of 2.0mm. The mechanical drawing indicates a square package with rounded corners and a specific land pattern for integration. Tolerances are specified as ±0.15mm.
Regulatory Information
FCC WARNING
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.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the 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.
FCC RF 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. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body.
Integration Instructions for Host Product Manufacturers
Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01. The module is investigated under CFR 47 FCC PART 15 SUBPART C/E.
2.3 Specific operational use conditions
This module is a stand-alone modular. If the end product involves multiple simultaneously transmitting conditions or different operational conditions for a stand-alone modular transmitter in a host, the host manufacturer must consult with the module manufacturer for the installation method in the end system.
2.4 Limited module procedures
Not applicable.
2.5 Trace antenna designs
Not applicable.
2.6 RF exposure considerations
To maintain compliance with FCC's RF Exposure guidelines, this equipment should be installed and operated with a minimum distance of 20cm from your body.
2.7 Antennas
This radio transmitter FCC ID: T2C-YL43455 has been approved by the Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
| Antenna type | Maximum Antenna gain |
|---|---|
| PCB Antenna | 3dBi |
2.8 Label and compliance information
The final end product must be labeled in a visible area with the following: "Contains FCCID: T2C-YL43455".
2.9 Information on test modes and additional testing requirements
Host manufacturers are strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host.
2.10 Additional testing, Part 15 Subpart B disclaimer
Host manufacturer is responsible for compliance of the host system with the module installed, along with all other applicable requirements for the system, such as Part 15 B.
ISEDC STATEMENT
Operation of 5150-5250 MHz is restricted to indoor use only.
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:
- (1) This device may not cause interference, and
- (2) This device must accept any interference, including interference that may cause undesired operation of the device.
The device complies with RF exposure guidelines. Users can obtain Canadian information on RF exposure and compliance. The equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body.
This Class B digital apparatus complies with Canadian ICES-003.
This device is intended only for OEM integrators under the following condition: The transmitter module may not be co-located with any other transmitter or antenna. As long as the condition above is met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.
Note Importante (Important Note): In the event that these conditions cannot be met (e.g., certain laptop configurations or co-location with another transmitter), then the Canada authorization is no longer considered valid, and the ISED cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate Canada authorization. Any company installing this modular with limited modular approval should perform radiated emission and spurious emission tests according to RSS-247 and RSSGen requirements. Only if the test results comply, then the host can be sold legally.
End Product Labeling
The final end product must be labeled in a visible area with the following: "Contains IC: 10741A-YL43455".
Manual Information to the End User
The OEM integrator must be aware not to provide information to the end user regarding how to install or remove this RF module in the user's manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as shown in this manual.
Canada Antenna Information
This radio transmitter [10741A-YL43455] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below. It has an antenna with a maximum antenna gain of 3dBi.
| Antenna type | Maximum Antenna gain |
|---|---|
| PCB Antenna | 3dBi |
Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
