Datasheet Middle Power Class-D Speaker Amplifier Series 17W+17W Class D Speaker Amplifier for Digital Input BD28623MUV General Description Key Specifications BD28623MUV is a Class D Speaker Amplifier designed for Supply Voltage: 8.5V to 24V Flat-panel TVs in particular for space-saving and Speaker Output Power: 17W+17W (Typ) low-power consumption. This IC delivers an output power (V =18V, R =8, Gain=26dB) CC L of 20W+20W. This IC employs state-of-the-art Bipolar, Total Harmonic Distortion: 0.08% (Typ) P =1W O CMOS, and DMOS (BCD) process technology. With this (V =12V, R =8, Gain=20dB) CC L technology, the IC can achieve high efficiency. In addition, Crosstalk: 90dB (Typ) the IC is packaged in a compact back-surface heat-sink PSRR: 60dB (Typ) type power package to achieve low power consumption Output Noise Voltage: 150V (Typ) rms and low heat generation and to eliminate need for external Standby Current: 33A (Typ) heat-sink. With this package, total output power is only Operating Temperature Range: -25C to +85C 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 Package W(Typ) x D(Typ) x H(Max) high quality playback of sound systems. VQFN024V4040 4.00mm x 4.00mm x 1.00mm Features 1 Digital Audio Interface 2 I S format SDATA: 16 / 20 / 24bit LRCLK (f ): 32 kHz/ 44.1kHz / 48kHz S BCLK: 64f (fixed) S MCLK: 256f / 512f Automatic Identification) S S Low supply current at RESET mode. Slew rate controller No need snubber circuit (Vcc 22V) Output Feedback Circuitry which prevents decrease of VQFN024V4040 sound quality caused by change of power supply voltage, achieves low noise and low distortion, So the large electrolytic-capacitors for Vcc bypass is able Typical Application Circuit to be eliminated. SP ch1 SP ch2 Variable Gain (17dB / 20dB / 26dB) (Lch) (Rch) 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 - Overheat protection - Under voltage protection - Output short protection - Output DC voltage protection - Clock stop protection (MCLK, BCLK, LRCLK) Small package (VQFN024V4040) Applications - Flat Panel TVs (LCD, Plasma) - Home Audio (Sound Bar) - Amusement Equipment - Electronic Music Equipment Digital Audio Source - Desktop PC, etc. Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays w ww.rohm.com TSZ02201-0C1C0E900290-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/49 TSZ2211114001 20.May.2016 Rev.002 BSP1P RSTX OUT1P MUTE GAIN OUT1N BSP1N ERROR BSP2P SDATA OUT2P LRCLK BCLK OUT2N MCLK BSP2N19 20 21 22 23 24 BD28623MUV Pin Configuration (TOP VIEW) BSP2P REGG REGD GNDA VCCA OUT1N 18 17 16 15 14 13 BSP1N OUT2P GNDP1 VCCP2 GNDP2 VCCP1 BSP2N BSP1P OUT2N OUT1P MUTEX ERROR 1 2 3 4 5 6 MCLK SDATA BCLK LRCLK GAIN RSTX Figure 2. Pin Configuration w ww.rohm.com TSZ02201-0C1C0E900290-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/49 TSZ2211115001 20.May.2016 Rev.002 7 8 9 10 11 12