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SSM2315-EVALZ 评估板

The SSM2315 features a high efficiency, low noise modulation scheme that requires no external LC output filters. The modulation continues to provide high efficiency even at low output power. It operates with 93% efficiency at 1.4 W into 8 Ω or 85% efficiency at 3 W into 3 Ω from a 5.0 V supply and has an SNR of >103 dB. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.

The SSM2315 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 device also includes pop-and-click suppression circuitry. This suppression circuitry minimizes voltage glitches at the output during turn-on and turn-off, reducing audible noise on activation and deactivation.

The fully differential input of the SSM2315 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 default gain of the SSM2315 is 6 dB, but users can reduce the gain by using a pair of external resistors (see the Gain section).

The SSM2315 is specified over the industrial temperature range of -40°C to +85°C. It has built-in thermal shutdown and output short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm wafer level chip scale package (WLCSP).

应用
特点
功能框图

Functional Block Diagram for SSM2315

芯片引脚定义图

技术指标
Output Power (W) 3W Supply Current 3.3mA
SSM2315 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
SSM2315-EVALZ 量产 评估板 工业
SSM2315CBZ-REEL 量产 9 工业
SSM2315CBZ-REEL7 量产 9 工业
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SSM2315 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