Datasheet Middle Power Class-D Speaker Amplifier series 17W+17W Full Digital Speaker Amplifier with built-in DSP BM28723MUV Features General Description Built-in DSP (Digital Sound Processor) for Audio BM28723MUV is a 17W+17W Class D stereo Speaker Signal Processing for TVs Amplifier with built-in DSP designed for TVs specifically 12-Band/ch BQ, 3-Band DRC, Pre-Scaler, Channel for space-saving and low-power consumption. Mixer, Fine Master Volume, Hard Clipper, Level BM28723MUV features BCD (Bipolar, CMOS, DMOS) Meter, etc. process technology to achieve high efficiency. In Single Input System for Digital Audio Interface addition, BM28723MUV is packaged in a compact back (No Master Clock Required) surface heatsink type power package to attain low 2 - I S / LJ / RJ Format power consumption, low heat generation without - LRCLK: 32 / 44.1 / 48kHz external heatsink. The package Max output power is - BCLK: 32 / 48 / 64f S only 17W+17W (When RL=8) as compared to - SDATA: 16 / 20 / 24 bit 20W+20W (When R =8) Max output power of L Single Output System for Digital Audio Interface package with external heat-sink. 2 - I S Format The product satisfies all needs for drastic downsizing, - SDATA: 16 / 20 / 24 bit low-profile structures and powerful high quality No Snubber Circuit Required (V ,V 22V) playback of sound systems. CCP1 CCP2 because of Slew Rate Control Output Feedback Circuit which prevents decrease Key Specifications of sound quality caused by change of power supply Supply voltage range 10V to 24V voltage, achieves low noise and low distortion, So (V ,V ) CCP1 CCP2 no large electrolytic-capacitors for Vcc bypass is Speaker output power 17W+17W (Typ) required. (V ,V =18V, CCP1 CCP2 Wide Range of Power Supply Input Voltage R =8) The monaural output reduces the number of L external parts needed. THD+N 0.08 % (Typ) High Efficiency and Low Heat Dissipation allowing Applications Miniaturization, Slim Design, and also Power Saving TVs (LCD, OLED) of the System Home Audio Eliminates pop-noise generated during the power Desktop PC supply ON/OFF. High quality muting performance is Amusement equipment achieved using the soft-muting technology. Electronic Music equipment, etc. Built-in with Various Protection Functions for Highly Reliability Design - High Temperature Protection Typical Application Circuit - Under Voltage Protection SP ch1 SP ch2 - Output Short Protection (Lch) (Rch) - DC Voltage Protection for speaker - Clock Stop Protection Small Package, It reduces surface mount area Package W(Typ) x D(Typ) x H(Max) VQFN032V5050 5.00mm x 5.00mm x 1.00mm Digital Audio -con Source Figure 1. Typical application circuit VQFN032V5050 Product structureSilicon monolithic integrated circuit This product has not designed protection against radioactive rays . www.rohm.com TSZ02201-0C1C0E900290-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/79 01.Dec.2016 Rev.001 TSZ2211114001 RSTX MUTE BSP1P OUT1P SCL SDA ERRORX OUT1N BSP1N SDATAO SDATA BSP2P LRCLK OUT2P BCLK OUT2N BSP2NERRORX RSTX MUTEX SCL SDA BM28723MUV Pin configuration and Block diagram 32 31 30 29 28 27 26 25 BSP1P OUT1P NC REG G REG G 1 2 wire I/F Control 24 ADDR I/F VCCP1 Driver FET 1P 2 23 BCLK GNDP1 2 I S/LJ/RJ Driver 3 22 BSP1N LRCLK I/F FET 1N 4 21 8 Times SDATA OUT1N PWM Over- Audio Modulator Sampling DSP 5 TEST1 Digital 20 OUT2P Filter Driver 6 PLL 19 FET 2P BSP2P PLL REG15 7 18 REG15 Driver GNDP2 FET 2N 8 Protection 17 VCCP2 DGND DVDD TEST2 TEST3 SDATAO BSP2N OUT2N NC 9 10 11 12 13 14 15 16 Figure 2. Pin configurations and Block diagram (Top View) Pin Description No. Name I/O No. Name I/O No. Name I/O No. Name I/O 1 ADDR I 9 TEST2 I 17 VCCP2 - 25 OUT1P O 2 BCLK I 10 DVDD - 18 GNDP2 - 26 BSP1P I 3 LRCLK I 11 TEST3 I 19 BSP2P I 27 REG G O 4 SDATA I 12 SDATAO O 20 OUT2P O 28 NC - 5 TEST1 I 13 ERRORX O 21 OUT1N O 29 RSTX I 6 PLL I/O 14 NC - 22 BSP1N I 30 MUTEX I 7 REG15 O 15 BSP2N I 23 GNDP1 - 31 SCL I 8 DGND - 16 OUT2N O 24 VCCP1 - 32 SDA I/O I = input O = output - = others www.rohm.com TSZ02201-0C1C0E900290-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/79 TSZ22111 15 001 01.Dec.2016 Rev.001