Datasheet for SSM3582A:
- Manufacturer Part Number : SSM3582A
- Manufacturer : AD
- Description : 2×, 31.76 W, Digital Input, Filterless Stereo Class D Audio Amplifier
- Series : SSM3582A
- Reference Price : USD 2.608
- Our Price : We have a better price, contact us by email
- Product Type : Audio Amplifiers
- Function : Class-D Audio Amplifiers
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : SSM3582A
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- Digital input stereo, high efficiency Class-D amplifier
- Operates from a single 4.5 V to 16 V supply
- State-of-the-art, proprietary, filterless Σ-Δ modulation
- 106.5 dB SNR at PO = 8.1 W, RL = 8 Ω, AV = 19 dB, PVDD = 12 V, A weighted
- 0.004% THD + N at 5 W into 8 Ω
- 38.5 µV rms output voltage noise, f = 20 Hz to 20 kHz, A weighted, PVDD = 16 V, 8 Ω
- Pop and clickless on and off sequence
- 2× 14.67W output at 12 V supply to 4 Ω loads at <1% THD + N
- 2× 14.4 W output at 16 V supply to 8 Ω loads at <1% THD + N
- Mono mode for increased maximum output power
- 1× 49.69W output at 16 V supply to 2 Ω loads at <1% THD + N
- Support for low impedance loads
- As low as 3 Ω/5 μH in stereo mode
- As low as 2 Ω/5 μH in mono mode
- High power efficiency
- 93.8% efficiency into an 8 Ω load
- 90.6% efficiency into a 4 Ω load
- 12.34 mA quiescent current with single 12 V PVDD supply
- Single-supply operation with internal LDOs or option to use an external 5 V and 1.8 V supply for lowest power consumption
- I2C control and hardware modes with up to 16 pin-selectable slots/addresses
- Supported sample rates from 8 kHz to 192 kHz with 24-bit resolution
- Multiple PCM audio serial data formats
- TDM slave with support for up to 16 devices on a single bus
- I2S or left justified slave
- Adjustable full-scale output tailored for many PVDD sources
- 2- and 3-cell Li-Ion batteries
- Digital volume control with selectable smooth ramp
- Automatic power-down function
- Supply monitoring automatic gain control (AGC) function reduces system brownout
- Standalone operational mode without I2C
- Temperature sensor with 1°C step readout via I2C
- Short-circuit, undervoltage, and thermal protection
- Thermal early warning
- Power-on reset
- PVDD sensing ADC
- 40-lead, 6 mm × 6 mm LFCSP with thermal pad
The SSM3582A is a fully integrated, high efficiency, digital input stereo Class-D audio amplifier. The device can operate from a single supply and requires only a few external components, significantly reducing the circuit bill of materials.
A proprietary, spread spectrum Σ-Δ modulation scheme enablesdirect connection to the speaker and ensures state-of-the-artanalog performance while lowering radiated emissionscompared to other Class-D architectures. An optional ultralowelectromagnetic interference (EMI) mode significantly reducesradiated emissions above 100 MHz, enabling longer speaker cable lengths. Audio is transmitted digitally to the amplifier, minimizing the possibility of signal corruption in digital environments. The amplifier provides outstanding analog performance, with a 106 dB signal-to-noise ratio and a low 0.004% total harmonic distortion + noise (THD + N).
The SSM3582A operates from a single 4.5 V to 16 V supply and iscapable of delivering 2× 15 W rms continuously into 8 Ω and4 Ω loads at <1% total harmonic distortion (THD). The efficientmodulation scheme maintains excellent power efficiency over awide range of impedances: 93.8% into an 8 Ω load and 90.6%into a 4 Ω load. Optimization of the output pulse maintainsperformance at impedances as low as 3 Ω/5 μH, enabling its usewith extended bandwidth tweeters.
The pulse code modulation (PCM) audio serial port supportsmost common protocols, such as I2S, left justified, and timedivision multiplexing (TDM), and can address up to 16 deviceson a single interface, for up to 32 audio playback channels.
IC operation is controlled through a dedicated I2C interface.The two ADDRx pins (2×, five-level) define up to 16 individualaddresses in I2C and standalone modes and automatically setthe default TDM slots attribution.
A micropower shutdown mode is triggered by removing thedigital audio interface clock, with a typical current of <1 µA.A software power-down mode is also available.
An automatic power-down feature shuts down the amplifierand the digital-to-analog converter (DAC) when no signal ispresent at the input, minimizing power consumption duringdigital silence. The device restarts when nonzero data is present atthe input. Mute and unmute transitions are pop and click free.
The SSM3582A is specified over the commercial temperaturerange of −40°C to +85°C. The device has built in thermalshutdown and output short-circuit protection, as well as anearly thermal warning with programmable gain limiting tomaintain operation.
The SSM3582A is available in a 40-lead, 6 mm × 6 mm leadframe chip scale package (LFCSP), with a thermal pad toimprove heat dissipation.
Applications
- Mobile computing
- All in one computers
- Portable electronics
- Wireless speakers
- Televisions
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
