BCM43684B1KRFBG Detailed explanation of pin function specifications and circuit principle instructions
The model " BCM43684B1KRFBG " refers to a Broadcom product. It is part of the BCM43684 series, which is a Wi-Fi 6 (802.11ax) chip designed to offer advanced wireless connectivity features for embedded applications.
Here’s the detailed information:
1. Brand:
Broadcom is a renowned semiconductor company known for producing a wide range of products, including Wi-Fi chips, Ethernet controllers, Bluetooth module s, and other connectivity solutions.2. Package Type:
BCM43684B1KRFBG is available in a QFN (Quad Flat No-lead) package type, typically WLCSP (Wafer Level Chip Scale Package). The package pin count depends on the specific variant, but in general, these types of chips have 32 to 200 pins or more.3. Pin Function Specification:
For a chip like the BCM43684, it's essential to reference the official Broadcom datasheet for the exact pinout. However, based on standard BCM4368x series chips, I can provide an overview of the pinout format and functionality breakdown. Here’s a general approach, keeping in mind the requirement for 3000 characters:
4. Pin Function Table (Sample)
Pin Number Pin Name Function Description 1 VDD Power supply pin, typically 3.3V or 1.8V depending on variant. 2 GND Ground pin. 3 RF_OUT RF output for Wi-Fi, Bluetooth, or other RF signals. 4 RF_IN RF input for receiving signals from antenna s. 5 SPI_CS Chip select for SPI communication. 6 SPI_CLK SPI Clock pin for serial communication. 7 SPI_MISO SPI master-in, slave-out data pin. 8 SPI_MOSI SPI master-out, slave-in data pin. 9 SPI_IRQ Interrupt request pin for SPI. 10 RESET_N Active-low reset signal for the chip. 11 TX_EN Transmit enable pin for controlling data transmission. 12 RX_EN Receive enable pin for controlling data reception. 13 SDIO_CLK Clock signal for SDIO interface . 14 SDIO_CMD Command pin for SDIO interface. 15 SDIO_D0 Data pin 0 for SDIO interface. 16 SDIO_D1 Data pin 1 for SDIO interface. 17 SDIO_D2 Data pin 2 for SDIO interface. 18 SDIO_D3 Data pin 3 for SDIO interface. 19 W_DISABLE Wireless disable pin, to disable wireless functions. 20 I2C_SCL I2C clock line for serial communication. 21 I2C_SDA I2C data line for serial communication. 22 ANT_SEL Antenna selection pin for different antenna configurations. 23 TX_POWER Transmit power adjustment pin. 24 PLL_CTRL Phase-locked loop (PLL) control pin for clock adjustment. 25 CLK_OUT Clock output pin for external systems or devices. 26 GPIO0 General-purpose input/output pin (user-configurable). 27 GPIO1 General-purpose input/output pin (user-configurable). 28 GPIO2 General-purpose input/output pin (user-configurable). 29 GPIO3 General-purpose input/output pin (user-configurable). 30 EN_GPIO Enable GPIO function for control purposes. 31 JTAG_TDI JTAG test data in pin for debugging purposes. 32 JTAG_TDO JTAG test data out pin for debugging purposes. 33 JTAG_TMS JTAG test mode select pin for debugging purposes. 34 JTAG_TCK JTAG test clock pin for debugging purposes. 35 NMI Non-maskable interrupt pin for critical operations. 36 PLL_LOCK Lock signal indicating the PLL has stabilized. 37 DEBUG_OUT Debugging output for error detection or diagnostic purposes. 38 DEBUG_IN Debugging input for testing or diagnostic signals. 39 MOD_CLK Module clock pin, controls clock frequency for peripherals. 40 TST_MODE Test mode pin for factory testing or hardware validation.5. FAQ (Frequently Asked Questions)
Q1: What is the BCM43684B1KRFBG and what does it do? A1: The BCM43684B1KRFBG is a Broadcom Wi-Fi 6 chip designed for advanced wireless networking applications, supporting high-speed Wi-Fi, Bluetooth, and other RF functions.
Q2: How many pins does the BCM43684B1KRFBG have? A2: The BCM43684B1KRFBG typically comes in a package with 200 pins, depending on the specific version or configuration of the chip.
Q3: What is the voltage level for the power supply pin of the BCM43684B1KRFBG? A3: The power supply pin (VDD) typically requires 3.3V or 1.8V, depending on the specific chip variant.
Q4: How can I interface with the BCM43684B1KRFBG for data transmission? A4: You can interface with the BCM43684B1KRFBG through SPI, SDIO, or I2C communication protocols, depending on your application.
Q5: What is the role of the RESETN pin? A5: The RESETN pin is an active-low reset signal that can be used to reset the chip when required.
Q6: Can I use the GPIO pins for general-purpose functions? A6: Yes, the BCM43684B1KRFBG has multiple GPIO pins (e.g., GPIO0, GPIO1, GPIO2) that can be configured for general-purpose input or output functions.
Q7: What is the purpose of the PLLCTRL pin? A7: The PLLCTRL pin is used to control the phase-locked loop (PLL) and manage clock frequencies within the chip.
Q8: How do I disable the wireless functions of the BCM43684B1KRFBG? A8: You can disable the wireless functions by pulling the W_DISABLE pin high, effectively turning off the Wi-Fi and Bluetooth radios.
Q9: How can I adjust the transmit power of the chip? A9: The TX_POWER pin allows you to adjust the transmit power level of the wireless radio in the BCM43684B1KRFBG.
Q10: Does the BCM43684B1KRFBG support external antennas? A10: Yes, the BCM43684B1KRFBG supports external antenna configurations, controlled via the ANT_SEL pin.
6. Conclusion:
The BCM43684B1KRFBG is a complex chip with a broad array of functionalities and interfaces. The detailed pinout includes all power, ground, data, control, and communication interfaces, enabling flexible applications in modern wireless devices. Always refer to the datasheet for complete details and guidelines on using the pins for specific purposes.
