20W+20W Class D Speaker Amplifier for Digital Input - BD28620MUV

BD28620MUV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power consumption. This IC delivers an output power of 20W+20W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD) process technology. With this technology, the IC can achieve high efficiency. In addition, the IC is packaged in a compact back-surface heat-sink type power package to achieve low power consumption and low heat generation and to eliminate need for external heat-sink. With this package, total output power is only 34W as compared to 40W total output power of package with external heat-sink This product satisfies all needs for drastic downsizing, low-profile structures and powerful high quality playback of sound systems.

Part Number	Status	Package	Unit Quantity	Minimum Package Quantity	Packing Type	RoHS
BD28620MUV-E2	Active	VQFN024V4040	2500	2500	Taping	Yes

Specifications

Vcc(Min.)[V]	8.5
Vcc(Max.)[V]	24.0
I/F	2 wire port
Digital Audio I/F	I2S
Speaker Amp Outputs	2.0
Speaker Amp Input Type	Digital Signal
Speaker Amp Type	Class D
Speaker Amp Output Power(Max.)[W]	20
Operating Temperature (Min.)[°C]	-25
Operating Temperature (Max.)[°C]	85

Technical Documents

Features

1 Digital Audio Interface
I²S format
SDATA: 16/20/24bit
LRCLK (f_S): 32kHz/44.1kHz/48kHz
BCLK: 64f_S(fixed)
MCLK: 256f_S/512f_SAutomatic Identification)
Low supply current at RESET mode.
Output Feedback Circuitry which prevents decrease of sound quality caused by change of power supply voltage, achieves low noise and low distortion, eliminates need for large electrolytic-capacitors
Variable Gain (17dB/20dB/26dB)
Wide power supply voltage range (8.5V to 24V)
High efficiency, low heat
Pop noise prevention at power supply ON/OFF
Soft Muting Technology
High reliability design by built-in protection circuits: High temperature protection, Under voltage protection, Output short protection, Output DC voltage protection, Clock stop protection (MCLK, BCLK, LRCLK)
Small package (VQFN024V4040)

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Application Note BA12004BF

Part Explanation BA12004BF