Overview
The SSM2305CPZ-REEL7 is a fully integrated, high-efficiency Class-D audio amplifier designed and manufactured by Analog Devices Inc. This monaural amplifier is optimized for mobile phone applications and other portable electronics, offering high performance with minimal external components. It operates from a single supply voltage ranging from 2.5 V to 5.5 V and is capable of delivering up to 2.8 W of continuous output power into a 4 Ω load. The device features built-in thermal shutdown and output short-circuit protection, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V |
| Output Power | 2.8 W x 1 @ 4 Ω |
| Signal-to-Noise Ratio (SNR) | >98 dB |
| Total Harmonic Distortion (THD + N) | < 1% at 2.2 W into 4 Ω |
| Operating Temperature | -40°C to +85°C |
| Package Type | 8-lead LFCSP (3x3 mm) and MSOP |
| Shutdown Current | 20 nA |
| Gain | Default: 18 dB, adjustable with external resistors |
| Power Supply Rejection Ratio (PSRR) | Typically 60 dB at 217 Hz |
Key Features
- High efficiency, low noise modulation scheme without external LC output filters
- Pop-and-click suppression circuitry to minimize voltage glitches during turn-on and turn-off
- Short-circuit and thermal protection for reliable operation
- Differential inputs and built-in resistors to reduce board component count
- Fixed and user-adjustable gain configurations
- Low shutdown current of 20 nA
- Surface mount package with lead-free and RoHS compliance
Applications
The SSM2305CPZ-REEL7 is suitable for a variety of portable and mobile applications, including:
- Mobile phones
- MP3 players
- Portable gaming devices
- Portable electronics
- Educational toys
Q & A
- What is the maximum output power of the SSM2305CPZ-REEL7?
The SSM2305CPZ-REEL7 can deliver up to 2.8 W of continuous output power into a 4 Ω load. - What is the operating voltage range of the SSM2305CPZ-REEL7?
The device operates from a single supply voltage ranging from 2.5 V to 5.5 V. - Does the SSM2305CPZ-REEL7 have built-in protection features?
Yes, it includes short-circuit and thermal protection. - How can the gain of the SSM2305CPZ-REEL7 be adjusted?
The gain can be adjusted by using a pair of external resistors; the default gain is 18 dB. - What is the signal-to-noise ratio (SNR) of the SSM2305CPZ-REEL7?
The SNR is greater than 98 dB. - What are the package options for the SSM2305CPZ-REEL7?
The device is available in 8-lead LFCSP (3x3 mm) and MSOP packages. - Is the SSM2305CPZ-REEL7 RoHS compliant?
Yes, it is lead-free and RoHS compliant. - What is the shutdown current of the SSM2305CPZ-REEL7?
The shutdown current is 20 nA. - What are some typical applications for the SSM2305CPZ-REEL7?
It is commonly used in mobile phones, MP3 players, portable gaming devices, and educational toys. - Does the SSM2305CPZ-REEL7 require external LC output filters?
No, it features a high efficiency, low noise modulation scheme that does not require external LC output filters.
