آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

CH9142 is a Bluetooth-to-dual-UART transparent transmission chip, supporting Bluetooth master mode, slave mode, and broadcast mode, compatible with BLE 5.0. It supports configuration via UART AT commands; in slave mode, Bluetooth communication parameters can also be configured, with MODEM handshake signal support and a maximum UART baud rate of 1Mbps. In Bluetooth slave mode, parameters such as Bluetooth name and manufacturer information can be set, with configuration conveniently completed via APP or UART commands. The chip's two UARTs can independently control Bluetooth modes and states, supporting two independent Bluetooth connections each communicating with its corresponding UART.

Features

• Bluetooth master, slave, and broadcast mode support
• UART AT command configuration and Bluetooth transmission configuration
• Independent Bluetooth parameter settings for two UART ports
• Bluetooth virtual COM port driver for PC
• Compatible with existing serial software and tools, no secondary development required
• Bluetooth host connection support for Windows, Linux, Android, iOS, and other systems
• Power-down sleep current: 0.3μA
• Transmission range up to 100 m
• TX power adjustable in 8 levels
• Asynchronous UART maximum baud rate: 1 Mbps
• UART MODEM handshake signals RTS and CTS support
• UART data bits: 5, 6, 7, or 8; stop bits: 1 or 2
• UART parity: odd, even, none, space (0), and mark (1)
• 32 kHz clock source selectable from external crystal
• QFN28 package