SSM2301-EVALZ

The SSM2301 is a fully integrated, high efficiency, Class-D audio amplifier 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 SSM2301 features a high efficiency, low noise modulation scheme that does not require external LC output filters. The modu-lation provides high efficiency even at low output power. The SSM2301 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 greater than 98 dB. Spread-spectrum modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.

The SSM2301 has a micropower shutdown mode with a maximum shutdown current of 30 nA. Shutdown is enabled by applying a logic low to the SD pin.

The device also includes pop-and-click suppression circuitry. 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 SSM2301 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 SSM2301 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 by utilizing the gain control select pin connected respectively to ground or to VDD. Gain can also be adjusted externally by inserting a resistor in series with each input pin.

The SSM2301 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 both an 8-lead, 3 mm × 3 mm lead-frame chip scale package (LFCSP) and an 8-lead MSOP package.

SSM2301-EVALZ 应用
SSM2301-EVALZ 特点
SSM2301-EVALZ 功能框图

其他图表

SSM2301-EVALZ 技术指标
Output Power (W) 18W Supply Current 44mA
SSM2301 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
SSM2301-EVALZ 量产 评估板   工业
SSM2301-MINI-EVALZ 量产 评估板   工业
SSM2301CPZ-REEL 量产 8 ld LFCSP (3x3mm) 8 工业
SSM2301CPZ-REEL7 量产 8 ld LFCSP (3x3mm) 8 工业
SSM2301RMZ-REEL 量产   8 工业
SSM2301RMZ-REEL7 量产   8 工业
SSM2301-EVALZ 应用技术支持与电子电路设计开发资源下载
  1. ADC音频放大器系列SSM2301 数据手册DataSheet 下载 . pdf
  2. Advantiv 高级电视解决方案 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf
  4. ADI 美国模拟器件公司音频放大器选型指南 . pdf