类型：行业软件版本：(Filterless High Efficiency Class-D Ste)更新：2023-05-05 17:08:17大小：524KB系统：Vista, Win2003, WinXP, Win2000, NT语言：简体中文
The SSM2302 is a fully integrated, high efficiency, Class-D stereo audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.0 V supply. It is capable of delivering 1.4 W of continuous output power with less than 1% THD + N driving an 8 Ω load from a 5.0 V supply.
The SSM2302 features a high efficiency, low noise modulation scheme. It operates with 85% efficiency at 1.4 W into 8 Ω from a 5.0 V supply and has a signal-to-noise ratio (SNR) that is better than 98 dB. PDM modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.
The SSM2302 has a micropower shutdown mode with a typical shutdown current of 20 nA. Shutdown is enabled by applying a logic low to the SD pin.
The architecture of the device allows it to achieve a very low level of pop and click. This minimizes voltage glitches at the output during turn-on and turn-off, thus reducing audible noise on activation and deactivation.
The fully differential input of the SSM2302 provides excellent rejection of common-mode noise on the input. Input coupling capacitors can be omitted if the dc input common-mode voltage is approximately VDD/2.
The SSM2302 also has excellent rejection of power supply noise, including noise caused by GSM transmission bursts and RF rectification. PSRR is typically 63 dB at 217 Hz.
The gain can be set to 6 dB or 12 dB utilizing the gain control select pin connected respectively to ground or VDD. Gain can also be adjusted externally by using an external resistor.
The SSM2302 is specified over the commercial temperature range (−40°C to +85°C). It has built-in thermal shutdown and output short-circuit protection. It is available in a 16-lead, 3 mm × 3 mm lead-frame chip scale package (LFCSP).
- 查看详情S7 MMC卡转换与解密软件简体2023-04-19
- 查看详情 易电助手 简体 2023-04-25
- 查看详情 GerbTool中文教程 简体 2023-04-19
- 查看详情 S7 MMC卡转换与解密软件 简体 2023-04-19
- 查看详情 万年历算法 简体 2023-04-16
- 查看详情 威泰克斯VX-400对讲机写频软件 简体 2023-04-08
- 查看详情 北京市自然人电子税务局扣缴端 简体 2023-05-05
- 查看详情 多多大师工具箱 简体 2023-05-05
- 查看详情 LINUO极致订单打印管理系统 简体 2023-05-05