TAS2559 Series

5.7-W, digital input smart amp with integrated speaker protection with stereo processing

Catalog

5.7-W, digital input smart amp with integrated speaker protection with stereo processing

Part	Output Type	Max Output Power x Channels @ Load	Utilized IC / Part	Board Type	Supplied Contents	Max Output Power x Channels @ Load [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Mounting Type	Features	Package / Case	Voltage - Supply	Type
Texas Instruments TAS2559EVM	1-Channel (Mono)	1 4 Ohm 6.9 W	TAS2559	Fully Populated	Board(s)
Texas Instruments TAS2559YZT	1-Channel (Mono)	4 Ohm 5 W				1	85 °C	-40 °C	42-DSBGA	Surface Mount	Short-Circuit and Thermal Protection	42-UFBGA DSBGA	1.8 V 3.3 V	Class D
Texas Instruments TAS2559YZR	1-Channel (Mono)	4 Ohm 5 W				1	85 °C	-40 °C	42-DSBGA	Surface Mount	Short-Circuit and Thermal Protection	42-UFBGA DSBGA	1.8 V 3.3 V	Class D

Catalog

5.7-W, digital input smart amp with integrated speaker protection with stereo processing

Key Features

• Ultra low-noise mono boosted class-D amplifier5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supplyOutput noise for DAC + class-D (ICN) is 15.9 µVDAC + class-D SNR 111 dB at 1%THD+N/8 ΩTHD+N –90 dB at 1 W / 8 Ω with flat frequency responsePSRR 110 dB for 200 mVppripple at 217 HzInput sample rates from 8 kHz to 96 kHzBuilt-in speaker senseMeasures speaker current and voltageMeasures VBAT voltage, chip temperatureDedicated real-time DSP for speaker protectionThermal and excursion protectionDetects speaker leaks and damageHigh efficiency class-H boost converter with multi-level tracking86% at 500 mW in 8 Ω with 3.6 V VBAT87% at 700 mW in 8 Ω with 4.2 V VBATConfigurable automatic gain control (AGC)Limits battery current consumptionAdjustable class-D switching edge-rate controlThermal, short-circuit, and under-voltage protectionI2S, Left-justified, right-justified, DSP, and TDM input and output interface,I2C or SPI interface for register controlStereo configuration using the TAS2559 and TAS2560 devicesPower suppliesBoost input: 2.9 V to 5.5 VAnalog/digital: 1.65 V to 1.95 VDigital I/O: 1.62 V to 3.6 V42-ball, 0.5-mm pitch, DSBGA packageUltra low-noise mono boosted class-D amplifier5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supplyOutput noise for DAC + class-D (ICN) is 15.9 µVDAC + class-D SNR 111 dB at 1%THD+N/8 ΩTHD+N –90 dB at 1 W / 8 Ω with flat frequency responsePSRR 110 dB for 200 mVppripple at 217 HzInput sample rates from 8 kHz to 96 kHzBuilt-in speaker senseMeasures speaker current and voltageMeasures VBAT voltage, chip temperatureDedicated real-time DSP for speaker protectionThermal and excursion protectionDetects speaker leaks and damageHigh efficiency class-H boost converter with multi-level tracking86% at 500 mW in 8 Ω with 3.6 V VBAT87% at 700 mW in 8 Ω with 4.2 V VBATConfigurable automatic gain control (AGC)Limits battery current consumptionAdjustable class-D switching edge-rate controlThermal, short-circuit, and under-voltage protectionI2S, Left-justified, right-justified, DSP, and TDM input and output interface,I2C or SPI interface for register controlStereo configuration using the TAS2559 and TAS2560 devicesPower suppliesBoost input: 2.9 V to 5.5 VAnalog/digital: 1.65 V to 1.95 VDigital I/O: 1.62 V to 3.6 V42-ball, 0.5-mm pitch, DSBGA package

Description

The TAS2559 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power amplifier which incorporates speaker voltage and current sensing feedback. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions. The device can be used easily with any processor with an I2S output and stereo implementations are possible when using two TAS2559 devices. Separate tuning for different speakers is supported allowing customers to add value while maintaining form factor designs. Additionally, the TAS2559 supports separate voice and audio tuning dynamically with ultra-low 15.9 µV ICN regardless of mode of operation making receiver/speaker implementations possible. A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal only requires a lower Class-D output power, the boost improves system efficiency by deactivating and connecting VBATdirectly to the Class-D amplifier supply. When higher audio output power is required, the multi-level boost quickly activates tracking the signal to provide the additional voltage to the load. The TAS2559 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power amplifier which incorporates speaker voltage and current sensing feedback. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions. The device can be used easily with any processor with an I2S output and stereo implementations are possible when using two TAS2559 devices. Separate tuning for different speakers is supported allowing customers to add value while maintaining form factor designs. Additionally, the TAS2559 supports separate voice and audio tuning dynamically with ultra-low 15.9 µV ICN regardless of mode of operation making receiver/speaker implementations possible. A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal only requires a lower Class-D output power, the boost improves system efficiency by deactivating and connecting VBATdirectly to the Class-D amplifier supply. When higher audio output power is required, the multi-level boost quickly activates tracking the signal to provide the additional voltage to the load.