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Overview
Features and Benefits
- Filterless digital input, mono Class-D amplifier
- Operates from a single 4.5 V to 17 V supply
- 31.3 W output power, 17 V supply, and 4 Ω load at 1% THD + N
- 107 dB A-weighted signal-to-noise ratio
- 93.3% efficiency into 8 Ω load at 12 V
- I2C control with up to 4 pin selectable slots/addresses
- Supports multiple serial data formats up to TDM16
- Digital interface supports sample rates from 8 kHz to 192 kHz
- Flexible digital and analog gain adjustment
- Flexible supply monitoring AGC function
- 6.55 mA quiescent current with single 17 V PVDD supply
- Short-circuit and thermal protection, thermal warning
- 20-ball, 1.8 mm × 2.2 mm, 0.4 mm pitch WLCSP
- Pop and click suppression
- User selectable ultralow EMI emissions mode
- Power-on reset
Product Details
The SSM3515 is a fully integrated, high efficiency, mono Class-D audio amplifier with digital inputs. The application circuit requires a minimum of external components and can operate from a single 4.5 V to 17 V supply. It can deliver 8.4 W of output power into an 8 Ω load or 15.8 W into an 4 Ω load from a 12 V power supply, or 31.3 W into an 4 Ω load from a 17 V power supply, all with 1% THD + N.The SSM3515 features a high efficiency, low noise modulation scheme that requires no external LC output filters. This scheme provides high efficiency even at low output power. It operates with 92% efficiency at 7 W into an 8 Ω load or 88% efficiency at 15 W into 4 Ω from a 12 V supply.
Spread spectrum pulse density modulation provides lower EMI radiated emissions compared with other Class-D architectures, particularly above 100 MHz.
The digital input eliminates the need for an external digital-to-analog converter (DAC). The SSM3515 has a micropower shutdown mode with a typical shutdown current of 39 nA at the 12 V PVDD supply. The device also includes pop and click suppression circuitry that minimizes voltage glitches at the output during turn on and turn off.
The SSM3515 operates with or without an I2C control interface. The SSM3515 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 halide-free, 20-ball, 1.8 mm × 2.2 mm wafer-level chip scale package (WLCSP).
Applications
- Notebooks
- Portable electronics
- Home audio
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Markets & Technology
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Tools & Simulations
IBIS Models
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
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SSM3515 Discussions
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
