The CSR8670C-IBBH-R is a Bluetooth Audio SoC (System on Chip) produced by Qualcomm under the CSR (Cambridge Silicon Radio) brand. It is widely used for Bluetooth audio applications, including Bluetooth speakers, headphones, and automotive audio systems.
Below is a detailed explanation of the pin functions and specifications for the CSR8670C-IBBH-R. This includes the pinout information for the package, the functionality of each pin, and FAQs in a Q&A format, as requested.
Package and Pinout Details
The CSR8670C-IBBH-R is available in a QFN-56 package, which has 56 pins in total. Here’s the detailed pinout with all the pin functions. Please note that this is a detailed list of the pins, their functions, and possible usage.
CSR8670C-IBBH-R Pin Function Table
Below is the detailed table for the 56-pin QFN package:
Pin Number Pin Name Pin Function 1 VDDIO Power supply for I/O, typically 3.3V or 1.8V, depending on system configuration. 2 GND Ground connection for the chip. 3 GPIO1 General-purpose input/output (GPIO), programmable for different functions. 4 GPIO2 General-purpose input/output (GPIO), programmable for different functions. 5 GPIO3 General-purpose input/output (GPIO), programmable for different functions. 6 GPIO4 General-purpose input/output (GPIO), programmable for different functions. 7 GPIO5 General-purpose input/output (GPIO), programmable for different functions. 8 GPIO6 General-purpose input/output (GPIO), programmable for different functions. 9 GPIO7 General-purpose input/output (GPIO), programmable for different functions. 10 SPI_MOSI SPI Master Out Slave In, used for serial data output. 11 SPI_MISO SPI Master In Slave Out, used for serial data input. 12 SPI_CLK SPI Clock signal for synchronization of SPI transactions. 13 SPI_CS SPI Chip Select to enable the slave device. 14 UART_TX UART Transmit, used for serial communication output. 15 UART_RX UART Receive, used for serial communication input. 16 I2S_SCK I2S Clock for audio data synchronization. 17 I2S_WS I2S Word Select, used for audio data synchronization. 18 I2S_SD I2S Serial Data for audio data transfer. 19 I2S_MCLK I2S Master Clock, used for the clock reference in audio systems. 20 RESET_B Active-low reset pin for the chip. 21 HFXTAL High-frequency crystal input for clock generation. 22 LFXTAL Low-frequency crystal input for clock generation. 23 ADC_IN Analog-to-digital converter input for audio signals. 24 DAC_OUT Digital-to-analog converter output for audio signals. 25 VDD Power supply for the chip, typically 1.8V or 3.3V depending on system design. 26 VDD_CORE Core power supply, typically 1.0V or 1.8V for the core logic. 27 SLEEP_CLK Sleep mode clock, used when chip is in low-power sleep mode. 28 GPIO8 General-purpose input/output (GPIO), programmable for different functions. 29 GPIO9 General-purpose input/output (GPIO), programmable for different functions. 30 GPIO10 General-purpose input/output (GPIO), programmable for different functions. 31 GPIO11 General-purpose input/output (GPIO), programmable for different functions. 32 GPIO12 General-purpose input/output (GPIO), programmable for different functions. 33 GPIO13 General-purpose input/output (GPIO), programmable for different functions. 34 GPIO14 General-purpose input/output (GPIO), programmable for different functions. 35 GPIO15 General-purpose input/output (GPIO), programmable for different functions. 36 USB_DM USB Data Minus, used for USB communication. 37 USB_DP USB Data Plus, used for USB communication. 38 USB_VBUS USB Voltage Bus, used for detecting USB power supply. 39 USB_ID USB Identification pin for OTG (On-The-Go) functionality. 40 GPIO16 General-purpose input/output (GPIO), programmable for different functions. 41 GPIO17 General-purpose input/output (GPIO), programmable for different functions. 42 GPIO18 General-purpose input/output (GPIO), programmable for different functions. 43 GPIO19 General-purpose input/output (GPIO), programmable for different functions. 44 GPIO20 General-purpose input/output (GPIO), programmable for different functions. 45 GPIO21 General-purpose input/output (GPIO), programmable for different functions. 46 GPIO22 General-purpose input/output (GPIO), programmable for different functions. 47 GPIO23 General-purpose input/output (GPIO), programmable for different functions. 48 GPIO24 General-purpose input/output (GPIO), programmable for different functions. 49 GPIO25 General-purpose input/output (GPIO), programmable for different functions. 50 GPIO26 General-purpose input/output (GPIO), programmable for different functions. 51 GPIO27 General-purpose input/output (GPIO), programmable for different functions. 52 GPIO28 General-purpose input/output (GPIO), programmable for different functions. 53 GPIO29 General-purpose input/output (GPIO), programmable for different functions. 54 GPIO30 General-purpose input/output (GPIO), programmable for different functions. 55 GPIO31 General-purpose input/output (GPIO), programmable for different functions. 56 GPIO32 General-purpose input/output (GPIO), programmable for different functions.20 Frequently Asked Questions (FAQ)
Q: What is the main function of the CSR8670C-IBBH-R? A: The CSR8670C-IBBH-R is a Bluetooth audio SoC that provides wireless audio streaming capabilities, commonly used in Bluetooth speakers and headphones.
Q: What is the maximum clock frequency for the CSR8670C-IBBH-R? A: The CSR8670C-IBBH-R supports a maximum clock frequency of up to 48 MHz for the core system.
Q: How do I reset the CSR8670C-IBBH-R chip? A: The chip can be reset by pulling the RESET_B pin low.
Q: What are the voltage requirements for the CSR8670C-IBBH-R? A: The chip requires VDD typically 1.8V or 3.3V depending on the application and VDD_CORE typically 1.0V for core logic.
Q: How many GPIO pins are available on the CSR8670C-IBBH-R? A: The chip has 32 GPIO pins that can be programmed for various functions.
Q: Can the CSR8670C-IBBH-R interface with external audio devices? A: Yes, the chip provides interfaces like I2S (pins 16-19) for connecting to external audio devices such as DACs.
Q: What type of audio data transfer is supported by CSR8670C-IBBH-R? A: The chip supports I2S (Inter-IC Sound) and SPI for audio data transfer.
Q: Can the CSR8670C-IBBH-R be used for Bluetooth Low Energy (BLE)? A: Yes, the CSR8670C-IBBH-R supports both Bluetooth Classic and Bluetooth Low Energy (BLE) standards.
Q: Does the CSR8670C-IBBH-R support USB communication? A: Yes, the chip supports USB communication through the USBDM and USBDP pins.
**Q: What is the purpose of the *GPIO* pins?** A: The GPIO pins on the CSR8670C-IBBH-R can be configured for various purposes such as data input/output, interrupts, or controlling other peripherals.
Q: What is the maximum data rate supported by the SPI interface? A: The SPI interface on the CSR8670C-IBBH-R supports data rates up to 10 Mbps.
Q: How is the chip powered? A: The CSR8670C-IBBH-R is powered via the VDD and VDD_CORE pins.
Q: Can the chip be placed into low-power mode? A: Yes, the chip can be placed into a low-power mode by controlling the SLEEP_CLK pin.
Q: What audio formats are supported by CSR8670C-IBBH-R? A: The CSR8670C-IBBH-R supports A2DP and HFP Bluetooth audio profiles, including formats like SBC and AAC.
Q: How does the chip handle audio clock synchronization? A: The chip uses I2SMCLK, I2SSCK, and I2S_WS for clock synchronization in audio systems.
Q: Can external memory be interfaced with CSR8670C-IBBH-R? A: Yes, the chip supports interfacing with external memory via SPI or I2C interfaces.
**Q: What is the role of *RESETB* pin?** A: The RESETB pin is used to reset the CSR8670C-IBBH-R chip when pulled low.
Q: Is the CSR8670C-IBBH-R capable of Bluetooth audio streaming? A: Yes, the chip is designed specifically for Bluetooth audio streaming and supports profiles like A2DP.
Q: What is the typical power consumption of CSR8670C-IBBH-R? A: The chip's typical power consumption is around 200mW in active mode and much lower in low-power modes.
Q: How does the CSR8670C-IBBH-R communicate with external devices? A: The chip can communicate with external devices via UART, SPI, or I2S interfaces.
If you need more information on any specific aspect or a deeper explanation of the chip's features, feel free to ask!
