TAS6584-Q1 Series
Automotive 45-V, 10-A digital input, four-channel Class-D audio amplifier with current sense
Manufacturer: Texas Instruments
Catalog
Automotive 45-V, 10-A digital input, four-channel Class-D audio amplifier with current sense
Key Features
• AEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C to +125°C, TAGeneral operation4.5-V to 45-V supply voltage, 50-V load dumpSupport for 1.8-V and 3.3-V I/O’sI2C control with 8 address options<2-W idle power loss at 14.4 V, <8-uA max VBAT+PVDD shutdown lossIntegrated DSP processingClass-H supply voltage controlThermal monitoring and foldbackClip detection, PVDD monitoring and foldbackOutput current sensing by channel via I2S/TDMNo need for external circuitryReal-time load diagnosticsMonitor output conditions while playing audioOpen load, Shorted load, Short-to-power, Short-to-ground detectionDC and AC Standby load diagnosticsAudio inputs2-4 channel I2S or 4-16 channel TDM inputInput sample rates: 44.1, 48, 96, 192 kHzSecondary low latency path, >70% reduced signal delay at 48 kHzAudio outputs4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)384-kHz to 2.1-MHz configurable output switching frequencyUp to 10-A channel output current400-VA peak BTL output power118 W (45 V, 8 Ω, 1% THD, BTL)215 W (45 V, 4 Ω, 1% THD, BTL)Audio PerformanceTHD+N 0.03% (8 Ω, 1 W, 1 kHz)111 dB SNR37 µV (14.4 V), 80 µV (45 V) output noiseProtectionOutput short protectionDC offset, undervoltage and overvoltageConfigurable overtemperature warning and individual channel shutdownI2C temperature and supply voltage readoutEasily meet CISPR25-L5 EMC specificationAdvanced spread-spectrumAEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C to +125°C, TAGeneral operation4.5-V to 45-V supply voltage, 50-V load dumpSupport for 1.8-V and 3.3-V I/O’sI2C control with 8 address options<2-W idle power loss at 14.4 V, <8-uA max VBAT+PVDD shutdown lossIntegrated DSP processingClass-H supply voltage controlThermal monitoring and foldbackClip detection, PVDD monitoring and foldbackOutput current sensing by channel via I2S/TDMNo need for external circuitryReal-time load diagnosticsMonitor output conditions while playing audioOpen load, Shorted load, Short-to-power, Short-to-ground detectionDC and AC Standby load diagnosticsAudio inputs2-4 channel I2S or 4-16 channel TDM inputInput sample rates: 44.1, 48, 96, 192 kHzSecondary low latency path, >70% reduced signal delay at 48 kHzAudio outputs4-channel bridge-tied load (BTL), configurable 2-channel parallel BTL (PBTL)384-kHz to 2.1-MHz configurable output switching frequencyUp to 10-A channel output current400-VA peak BTL output power118 W (45 V, 8 Ω, 1% THD, BTL)215 W (45 V, 4 Ω, 1% THD, BTL)Audio PerformanceTHD+N 0.03% (8 Ω, 1 W, 1 kHz)111 dB SNR37 µV (14.4 V), 80 µV (45 V) output noiseProtectionOutput short protectionDC offset, undervoltage and overvoltageConfigurable overtemperature warning and individual channel shutdownI2C temperature and supply voltage readoutEasily meet CISPR25-L5 EMC specificationAdvanced spread-spectrum
Description
AI
The TAS6584-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45-V supply voltage. In combination with up to 10-A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118 W (45 V, 8 Ω, 1% THD, BTL) and 215 W (45 V, 4 Ω, 1% THD, BTL).
The TAS6584-Q1 integrates DC and AC load diagnostics to determine the status of the connected loads before enabling the output stage. During audio playback, the status can be monitored through output current sense which is available for each channel and reports the measurement to a host processor through TDM with minimal delay. The device monitors the output load condition while playing audio using real-time load diagnostics which operate independent from host and audio input.
To optimize system efficiency, the integrated DSP of the TAS6584-Q1 enables Class-H envelope tracking control, eliminating the need for development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.
The TAS6584-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48 kHz which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.
The device is offered in a 64-pin QFP package with the exposed thermal pad up.
The TAS6584-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 45-V supply voltage. In combination with up to 10-A output current, this device delivers maximum output power and high fidelity audio in high and low impedance loads. The device provides four channels at 118 W (45 V, 8 Ω, 1% THD, BTL) and 215 W (45 V, 4 Ω, 1% THD, BTL).
The TAS6584-Q1 integrates DC and AC load diagnostics to determine the status of the connected loads before enabling the output stage. During audio playback, the status can be monitored through output current sense which is available for each channel and reports the measurement to a host processor through TDM with minimal delay. The device monitors the output load condition while playing audio using real-time load diagnostics which operate independent from host and audio input.
To optimize system efficiency, the integrated DSP of the TAS6584-Q1 enables Class-H envelope tracking control, eliminating the need for development of complex tracking software and making local boost voltage control possible without the need for an external microcontroller.
The TAS6584-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48 kHz which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.
The device is offered in a 64-pin QFP package with the exposed thermal pad up.
