SSM2301
ObsoleteFilterless High Efficiency Mono 1.4 W Class-D Audio Amplifier
- Part Models
- 4
- 1ku List Price
- price unavailable
Part Details
- Filterless Class-D amplifier with Σ-Δ modulation
- No sync necessary when using multiple Class-D amplifiers from Analog Devices, Inc.
- 1.4 W into 8 Ω at 5.0 V supply with less than 1% THD + N
- 85% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
- Greater than 98 dB SNR (signal-to-noise ratio)
- Single-supply operation from 2.5 V to 5.0 V
- 20 nA ultralow shutdown current
- Short-circuit and thermal protection
- Available in 8-lead, 3 mm × 3 mm LFCSP and MSOP packages
- Pop-and-click suppression
- Built-in resistors reduce board component count
- Fixed and user-adjustable gain configurations
The SSM2301 is a fully integrated, high efficiency, Class-D audio amplifier designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.0 V supply. It is capable of delivering 1.4 W of continuous output power with less than 1% THD + N driving an 8 Ω load from a 5.0 V supply.
The SSM2301 features a high efficiency, low noise modulation scheme that does not require external LC output filters. The modulation provides high efficiency even at low output power. The SSM2301 operates with 85% efficiency at 1.4 W into 8 Ω from a 5.0 V supply and has a signal-to-noise ratio (SNR) that is greater than 98 dB. Spread-spectrum modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.
The SSM2301 has a micropower shutdown mode with a maximum shutdown current of 30 nA. Shutdown is enabled by applying a logic low to the SD pin.
The device also includes pop-and-click suppression circuitry. This minimizes voltage glitches at the output during turn-on and turn-off, thus reducing audible noise on activation and deactivation.
The fully differential input of the SSM2301 provides excellent rejection of common-mode noise on the input. Input coupling capacitors can be omitted if the dc input common-mode voltage is approximately VDD/2.
The SSM2301 also has excellent rejection of power supply noise, including noise caused by GSM transmission bursts and RF rectification. PSRR is typically 63 dB at 217 Hz.
The gain can be set to 6 dB or 12 dB by utilizing the gain control select pin connected respectively to ground or to VDD. Gain can also be adjusted externally by inserting a resistor in series with each input pin.
The SSM2301 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 both an 8-lead, 3 mm × 3 mm lead-frame chip scale package (LFCSP) and an 8-lead MSOP package.
Applications
- Mobile phones
- MP3 players
- Portable gaming
- Portable electronics
- Educational toys
Suggested Replacement Parts
Filterless, High Efficiency, Mono 2.8 W, Class-D Audio Amplifier
Documentation
Application Note 1
Technical Articles 1
Evaluation Design File 2
Obsolete Data Sheet 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| SSM2301CPZ-REEL | 8-Lead LFCSP (3mm x 3mm) | ||
| SSM2301CPZ-REEL7 | 8-Lead LFCSP (3mm x 3mm) | ||
| SSM2301RMZ-REEL | 8-Lead MSOP | ||
| SSM2301RMZ-REEL7 | 8-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Feb 13, 2014 - 14_0038 Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines. |
||
| SSM2301CPZ-REEL | Obsolete | |
| SSM2301CPZ-REEL7 | Obsolete | |
|
Jan 29, 2014 - 14_0014 ADI Corporate Obsolescence Notice-January 2014 (Standard Products) |
||
| SSM2301CPZ-REEL | Obsolete | |
| SSM2301CPZ-REEL7 | Obsolete | |
| SSM2301RMZ-REEL | Obsolete | |
| SSM2301RMZ-REEL7 | Obsolete | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| SSM2305 | PRODUCTION | Filterless, High Efficiency, Mono 2.8 W, Class-D Audio Amplifier |
Evaluation Kits
SSM2301 Evaluation Board