TAS2770 Series

20-W, digital input, 4.5- to 18-V smart amp with I/V sense for speaker protection

Catalog

20-W, digital input, 4.5- to 18-V smart amp with I/V sense for speaker protection

Part	Board Type	Max Output Power x Channels @ Load	Max Output Power x Channels @ Load [x]	Utilized IC / Part	Output Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplied Contents	Operating Temperature [Max]	Operating Temperature [Min]	Type	Supplier Device Package	Package / Case	Mounting Type	Features
Texas Instruments TAS2770EVM	Fully Populated	18.3 W	1	TAS2770	1-Channel (Mono) or 2-Channel (Stereo)	4.5 V	16 V	Board(s)
Texas Instruments TAS2770RJQT		1 4 Ohm 20 W			1-Channel (Mono)	1.65 V 4.5 V	1.95 V 16 V		85 °C	-40 °C	Class D	26-VQFN-HR (4x3.5)	26-PowerVFQFN	Surface Mount
Texas Instruments TAS2770RJQR		1 4 Ohm 20 W			1-Channel (Mono)	1.65 V 4.5 V	1.95 V 16 V		85 °C	-40 °C	Class D	26-VQFN-HR (4x3.5)	26-PowerVFQFN	Surface Mount	Digital PWM Inputs Short-Circuit and Thermal Protection Shutdown
Texas Instruments TAS2770EVM-STEREO	Fully Populated	18.3 W	1	TAS2770	1-Channel (Mono)	4.5 V	16 V	Board(s)
Texas Instruments TAS2770YFFR		1 4 Ohm 20 W			1-Channel (Mono)	1.65 V 4.5 V	1.95 V 16 V		85 °C	-40 °C	Class D	30-DSBGA	30-UFBGA DSBGA	Surface Mount	I2C I2S Mute PWM Short-Circuit and Thermal Protection Volume Control
Texas Instruments TAS2770YFFEVM	Fully Populated			TAS2770	1-Channel (Mono) or 2-Channel (Stereo)	4.5 V	16 V	Board(s)

Catalog

20-W, digital input, 4.5- to 18-V smart amp with I/V sense for speaker protection

Key Features

• High-Performance Mono Class-D Amplifier20-W at 1% THD+N (4 Ω, 16 V)15 .4-W at 1 % THD+N (4 Ω, 12.6 V)0.03 % THD+N at 1 W (4 Ω, VBAT = 12.6 V)32-µVrms A-Weighted Idle Channel noise90-dB PSRR with 200 mV PP Ripple at 20 - 20 kHz82.5% Efficiency at 1 W (4 Ω, VBAT = 12.6 V)< 1 µA HW Shutdown VBAT Current42 mW / 63 mW Idle Dissipation (8.4 V / 12.6 V)Speaker Voltage and Current SenseReal-Time Diagnostics Using I/V Speaker SenseOver CurrentShort Circuit(short to power, short to ground and terminal-to-terminal short)Over-TemperatureVBAT Tracking Peak Voltage Limiter with Brown Out Prevention44.1-kHz to 192-kHz Sample RatesFlexible User InterfacesI 2S/TDM: 8 Channels (32-bit / 96 kHz)I 2C: 8 selectable AddressesMCLK Free OperationLow Pop and ClickPower SuppliesVBAT: 4.5 V to 16 VAVDD: 1.8 VSpread-Spectrum Low EMI ModeThermal and Over Current ProtectionHigh-Performance Mono Class-D Amplifier20-W at 1% THD+N (4 Ω, 16 V)15 .4-W at 1 % THD+N (4 Ω, 12.6 V)0.03 % THD+N at 1 W (4 Ω, VBAT = 12.6 V)32-µVrms A-Weighted Idle Channel noise90-dB PSRR with 200 mV PP Ripple at 20 - 20 kHz82.5% Efficiency at 1 W (4 Ω, VBAT = 12.6 V)< 1 µA HW Shutdown VBAT Current42 mW / 63 mW Idle Dissipation (8.4 V / 12.6 V)Speaker Voltage and Current SenseReal-Time Diagnostics Using I/V Speaker SenseOver CurrentShort Circuit(short to power, short to ground and terminal-to-terminal short)Over-TemperatureVBAT Tracking Peak Voltage Limiter with Brown Out Prevention44.1-kHz to 192-kHz Sample RatesFlexible User InterfacesI 2S/TDM: 8 Channels (32-bit / 96 kHz)I 2C: 8 selectable AddressesMCLK Free OperationLow Pop and ClickPower SuppliesVBAT: 4.5 V to 16 VAVDD: 1.8 VSpread-Spectrum Low EMI ModeThermal and Over Current Protection

Description

The TAS2770 is a mono, digital input Class-D audio amplifier optimized for efficiently driving small loudspeakers . The output power, protection features and packages make TAS2770 a good choice for Smart speakers, Bluetooth speakers, home automation devices, Notebook computers and tablets. The Class-D amplifier is capable of delivering 20W of continuous power into a 4-Ω load at 16V and 15W into an 8-Ω load at 16V both at 1% THD. The broad voltage input range of 4.5-16V and the high output power makes this amplifier versatile enough to work with battery power or with line powered systems A Brown-Out preventer tracks peak voltage and automatically self-limits the gain to the voltage available. This hardware implemented feature reduces the amplifier’s demand on system power preventing both audio cut out and system shutdown The TAS2770 can be used as a conventional amp or with host based speaker protection algorithms. The integrated speaker voltage and current sense provides for real time feedback of loudspeaker conditions to the protection algorithms through a return I2S path. Up to eight devices can share a common bus via either I 2S/TDM + I 2C. The TAS2770 device is available in a 26-pin, 0.4-mm pitch QFN for a compact PCB footprint. The TAS2770 is a mono, digital input Class-D audio amplifier optimized for efficiently driving small loudspeakers . The output power, protection features and packages make TAS2770 a good choice for Smart speakers, Bluetooth speakers, home automation devices, Notebook computers and tablets. The Class-D amplifier is capable of delivering 20W of continuous power into a 4-Ω load at 16V and 15W into an 8-Ω load at 16V both at 1% THD. The broad voltage input range of 4.5-16V and the high output power makes this amplifier versatile enough to work with battery power or with line powered systems A Brown-Out preventer tracks peak voltage and automatically self-limits the gain to the voltage available. This hardware implemented feature reduces the amplifier’s demand on system power preventing both audio cut out and system shutdown The TAS2770 can be used as a conventional amp or with host based speaker protection algorithms. The integrated speaker voltage and current sense provides for real time feedback of loudspeaker conditions to the protection algorithms through a return I2S path. Up to eight devices can share a common bus via either I 2S/TDM + I 2C. The TAS2770 device is available in a 26-pin, 0.4-mm pitch QFN for a compact PCB footprint.