Overview
The SSM2518CPZ-R7 is a high-performance, low-power, stereo Class D audio amplifier integrated circuit (IC) designed by Analog Devices Inc. This IC is specifically tailored for portable audio applications, offering a unique combination of high audio quality, low power consumption, and robust protection features. It integrates a digital-to-analog converter (DAC) and a sigma-delta (Σ-Δ) Class-D modulator, enabling efficient transmission of audio data over a digital audio serial interface. This architecture significantly reduces the impact of noise sources such as GSM interference on the transmitted audio, making it ideal for power-sensitive applications like mobile phones, portable media players, and wireless speakers.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Supply Range | 2.5V to 5.5V (PVDD), 1.62V to 3.6V (DVDD) |
| Output Power | 2.5W x 2 @ 4Ω |
| Quiescent Current | 3.5mA (typical at no load, PVDD = 5V) |
| THD+N | 0.1% (typical) |
| Bandwidth | 20Hz to 20kHz |
| Efficiency | 91% typical at full scale into an 8 ohm load |
| Signal-to-Noise Ratio | 97dB typical at (PVDD = 5V, DVDD = 1.8V) |
| Operating Temperature | -40°C to +85°C |
| Package Style | 20-lead LFCSP (4x4) |
Key Features
- 2-channel (stereo) operation with integrated digital volume control, mute, shutdown, and short-circuit protection.
- Compact 20-pin LFCSP (4x4) package with minimal external component count.
- Excellent audio performance with low THD+N and high signal-to-noise ratio.
- I²C control interface or standalone operation with pop-and-click suppression.
- Low power modes for performance/power trade-offs and user-selectable ultralow EMI emission mode.
- Robust protection features including thermal shutdown and short-circuit protection.
Applications
- Portable audio devices such as smartphones, tablets, and portable speakers.
- Bluetooth speakers and headphone amplifiers.
- Portable music players and laptop PCs.
- Wireless speakers, portable gaming devices, and small LCD televisions.
- Navigation systems and other power-sensitive audio applications.
Q & A
- What is the SSM2518CPZ-R7? The SSM2518CPZ-R7 is a high-performance, low-power, stereo Class D audio amplifier IC designed by Analog Devices Inc..
- What is the voltage supply range of the SSM2518CPZ-R7? The voltage supply range is 2.5V to 5.5V (PVDD) and 1.62V to 3.6V (DVDD).
- What is the output power of the SSM2518CPZ-R7? The output power is up to 2.5W per channel into a 4Ω load.
- What are the key protection features of the SSM2518CPZ-R7? The IC includes thermal shutdown, short-circuit protection, and mute/shutdown functions.
- What are the typical applications of the SSM2518CPZ-R7? Typical applications include portable audio devices, Bluetooth speakers, headphone amplifiers, and portable music players.
- What is the efficiency of the SSM2518CPZ-R7? The efficiency is typically 91% at full scale into an 8 ohm load.
- Does the SSM2518CPZ-R7 support I²C control? Yes, it supports I²C control interface or standalone operation.
- What is the operating temperature range of the SSM2518CPZ-R7? The operating temperature range is -40°C to +85°C.
- Is the SSM2518CPZ-R7 RoHS compliant? Yes, the SSM2518CPZ-R7 is RoHS3 compliant.
- What package style does the SSM2518CPZ-R7 come in? It comes in a 20-lead LFCSP (4x4) package.
