Mono Class-D audio amplifier integrates a digital input path and differential filterless output for headphone and portable audio drive. It operates from a 1.8 V PVDD supply and a 1.2 V to 1.8 V IOVDD supply, delivering up to 85 mW into a 16 ohm load at less than 1% THD+N. The device supports I2S, TDM, left-justified, and PDM input formats with sample rates from 8 kHz to 768 kHz. It provides 113 dB A-weighted signal-to-noise ratio, short-circuit protection, pop-and-click suppression, and operation from -40°C to +85°C in an 11-ball WLCSP package.
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| Amplifier Type | Mono Class-D audio amplifier |
| Output Configuration | Differential filterless output |
| PVDD Supply Voltage | 1.8V |
| IOVDD Supply Voltage | 1.2 to 1.8V |
| Output Power at <0.1% THD+N | 80 into 16 ohm loadmW |
| Continuous Output Power at <1% THD+N | 85 into 16 ohm loadmW |
| Signal-to-Noise Ratio | 113 A-weighteddB |
| Noise | 2.57uV rms |
| THD+N | 0.003 at 30 mW, 1 kHz, 32 ohm load% |
| Efficiency | >90 at 55 mW into 16 ohm load% |
| Idle Power | 1.55 typical in high performance modemW |
| Shutdown Current | 6 typical at 1.8 V PVDDuA |
| Control Interface | I2C or standalone |
| Supported Serial Audio Formats | TDM, I2S, left justified, PDM |
| PDM Input Clock Frequency | 2.8224 to 12.288MHz |
| Sample Rate | 8 to 768kHz |
| Latency | 3.9 with 6 MHz PDM inputus |
| Operating Temperature Range | -40 to +85°C |
| Package Dimensions | 0.984 x 1.444 x 0.44mm |
| Package Pitch | 0.35mm |
| Halide | Halide free |
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These are design resources that include the Analog Devices SSM6515
User guide for evaluating the SSM6515 ultra-low power Class-D audio amplifier using the EVAL-SSM6515Z board, SigmaStudio software, and USBi communications adapter.
