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Product Detailed Parameters
- Description：STEREO CHANNEL MID POWER CLASS D
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：31.76W x 2 @ 4Ohm
- Voltage - Supply：4.5V ~ 16V
- Features：-
- Mounting Type：Surface Mount
- Supplier Device Package：40-LFCSP-WQ (6x6)
- Package / Case：40-WFQFN Exposed Pad, CSP
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
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Overview
The SSM3582ACPZ-R7 is a digital input stereo Class-D audio amplifier from Analog Devices. It operates on a single 4.5 V to 16.5 V supply and utilizes a proprietary filterless Σ-Δ modulation scheme. The device delivers up to 2× 14.67 W into 4 Ω loads at 12 V and 2× 14.4 W into 8 Ω loads at 16 V, with THD+N below 1%. Key performance metrics include a 106.5 dB SNR and 0.004% THD+N at 5 W into 8 Ω. It supports I2S, left justified, and TDM formats with sample rates from 8 kHz to 192 kHz. The component is housed in a 40-lead, 6 mm × 6 mm LFCSP package.
Feature Summary
- Proprietary spread spectrum Sigma-Delta modulation enables direct speaker connection without external LC filters while minimizing radiated emissions.
- Integrated I2C control interface allows for address configuration, volume adjustment, and monitoring of temperature and supply voltage.
- Automatic power-down functionality reduces consumption during digital silence by shutting down the amplifier and DAC when no signal is present.
- Built-in protection mechanisms include thermal shutdown, output short-circuit protection, and undervoltage lockout.
Applications
- Mobile computing
- All in one computers
- Portable electronics
- Wireless speakers
- Televisions
Procurement Notes
Verify the specific suffix R7 indicates tape and reel packaging upon ordering. Confirm that the ACPZ designation corresponds to the 40-lead LFCSP package with a thermal pad. Ensure compatibility with the required PVDD supply range of 4.5 V to 16.5 V for the target application design.
Selection Notes
Select this component for designs requiring high efficiency and low total harmonic distortion without external output filtering. Consider the mono mode capability if higher power output into lower impedance loads like 2 Ω or 3 Ω is necessary. Evaluate the I2C interface requirements for system integration and verify thermal management capabilities given the exposed pad package.
Part Context
This part belongs to the SSM3582A family of high-efficiency digital input amplifiers. It shares functional similarities with other filterless Class-D solutions but offers specific support for low impedance loads and integrated power management features. The device is designed to replace traditional analog input amplifiers in space-constrained portable applications.
Replacement Considerations
SSM3582ACPZ
FAQ
Does the SSM3582ACPZ-R7 require external LC filters?
No, it uses a proprietary filterless Sigma-Delta modulation scheme that allows direct connection to the speaker.
What is the maximum supply voltage for this amplifier?
The device operates from a single supply ranging from 4.5 V to 16.5 V.
