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Product Detailed Parameters
- Description：IC AMP CLSS D STER 36.6W 40LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：36.6W x 1 @ 2Ohm; 24W x 2 @ 4Ohm
- Voltage - Supply：7V ~ 18V
- Features：Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：40-LFCSP-WQ (6x6)
- Package / Case：40-WFQFN Exposed Pad, CSP
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The SSM3302ACPZ is a stereo Class-D audio amplifier by Analog Devices. It delivers 2 × 10 W into 4 Ω and 2 × 8 W into 8 Ω at 12 V supply. Operating voltage ranges from 7 V to 18 V. The device uses Σ-Δ modulation for filterless operation, achieving 98 dB SNR. Gain is selectable between 9 dB and 24 dB via one resistor. It features micropower shutdown (10 µA), pop-and-click suppression, and an integrated 5 V regulator. Thermal warning occurs at 120°C with shutdown at 145°C.
Feature Summary
- Filterless stereo Class-D architecture utilizing Sigma-Delta modulation to eliminate output filters.
- Spread spectrum pulse density modulation reduces radiated EMI emissions significantly.
- Integrated low dropout linear regulator provides a 5 V analog supply rail.
- Built-in protection includes thermal warning, overtemperature shutdown, and output short-circuit detection.
Applications
- High-fidelity mobile phone headphone amplifiers
- Subwoofer drivers in 2.1 audio systems using mono mode
- Portable multimedia devices requiring high efficiency
Procurement Notes
Verify the specific package marking and date code against the manufacturer's latest datasheet revision A documentation. Confirm that the ordering suffix matches the required reel quantity and tape specifications. Ensure compatibility with the intended PCB footprint dimensions for the 40-lead LFCSP-WQ package before finalizing procurement orders.
Selection Notes
Select this component when board space conservation is critical due to its filterless design. Choose it for applications requiring flexible gain settings without altering input impedance. Consider it for designs needing robust EMI performance or integrated power regulation to simplify the overall schematic and reduce external component count.
Part Context
This part belongs to the SSM3302 series of audio amplifiers manufactured by Analog Devices Inc. It is designed as a high-performance solution for portable electronics. The device integrates advanced modulation techniques to achieve high audio quality while maintaining system efficiency and minimizing electromagnetic interference in compact form factors.
Replacement Considerations
SSM3302ACPZ-R7
FAQ
How does the SSM3302 handle EMI emissions?
It employs spread spectrum pulse density modulation to lower radiated emissions. An optional ultralow EMI mode further reduces emissions above 100 MHz.
What is the function of the MONO pin?
Pulling the MONO pin high enables mono mode, stacking the stereo outputs to drive a single load as small as 2 Ω up to 20 W.
