RT9104 RICHTEK [Richtek Technology Corporation], RT9104 Datasheet
RT9104
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RT9104 Summary of contents
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... Stereo Class-D Audio Power Amplifier with DC Volume Control General Description The RT9104 is a stereo, high efficiency, filter free Class-D audio amplifier capable of delivering 3W per channel into 3Ω speakers. For application flexibility, the gain can be set by external DC volume control. Thermal protection as well as overcurrent protection functions are included in the stereo amplifier ...
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... RT9104 Marking Information RT9104GQW GU= : Product Code YMDNN : Date Code GU=YM DNN RT9104GN RT9104GN : Product Number RichTek YMDNN : Date Code RT9104 GNYMDNN Typical Application Circuit PVDD1 10µF Audio Input ROUT+ 1nF www.richtek.com 2 RT9104GS RT9104 GSYMDNN RT9104 AVDD C AVDD 0.1µF VOLUME_IN PVDD ...
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... Left Channel Audio Signal Input. - Bypass + PWM Generator - + Bypass DC Over Temperature Volume /Over Current Control Protection Circuit - Bypass + PWM Generator - Bypass + RT9104 Pin Function PVDD Output ROUT+ Power ROUT- Stage PGND Depop Circuit PVDD Output LOUT+ Power LOUT- Stage PGND www.richtek.com 3 ...
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... RT9104 Absolute Maximum Ratings Supply Voltage, AVDD, PVDD ---------------------------------------------------------------------------------- 0. Input Voltage, INL, INR ------------------------------------------------------------------------------------------- 0. Power Dissipation 25° WQFN-16L 3x3 ----------------------------------------------------------------------------------------------------- 1.471W SOP-16 -------------------------------------------------------------------------------------------------------------- 1.176W DIP-16 ---------------------------------------------------------------------------------------------------------------- 1.333W Package Thermal Resistance (Note 2) WQFN-16L 3x3, θ ----------------------------------------------------------------------------------------------- 68°C/W JA WQFN-16L 3x3, θ ----------------------------------------------------------------------------------------------- 7.5°C/W JC SOP-16, θ --------------------------------------------------------------------------------------------------------- 85°C/W JA DIP-16, θ ...
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... 1kHz 4.5V to 5.5V 4Ω 1W 8Ω, A Weighting O L Load = (8Ω + 33μH) “ ” Absolute Maximum Ratings may cause permanent damage to the device. These = 25° high effective thermal conductivity four-layer test board of A RT9104 Min Typ -- 3 -- 2.35 -- 2.7 -- 2.3 -- 1.6 -- 1.25 -- 0.2 = 2W, O −85 ...
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... RT9104 Typical Operating Characteristics Efficiency vs. Output Power 100 0.5 1 1.5 Output Power (W) THD+N vs. Output Power Right Channel 0.5 0.2 Left Channel 0.1 0. 0.01 10m 20m 50m 100m 200m Output Power (W) THD+N vs. Frequency 0.5 Left Channel 0.2 0.1 0. ...
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... Frequency (Hz) Noise Floor vs. Frequency +20 +10 +0 -10 -20 -30 -40 -50 -60 -70 Right Channel -80 -90 -100 -110 -120 Left Channel -130 R -140 20 50 100 200 500 1k Frequency (Hz) RT9104 = 0.5W, Gain = 6dB 10k 20k = 4Ω, Gain = 20dB 10k 20k www.richtek.com 7 ...
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... RT9104 can limit the number of external components to a minimum. DC Volume control The voltage gain of RT9104 can be set by the external DC voltage through the “VOLUME_IN” pin. There are a total of 32 discrete gain steps of the amplifier with a range from − ...
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... Low Supply Voltage Detection The RT9104 incorporates circuitry designed to detect low supply voltage level. When the supply voltage falls below, the RT9104 goes into a state of shutdown and the current consumption drops from milliamperes to microamperes. The device will resume normal function again once V > ...
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... RT9104 Layout Considerations For best performance of the RT9104, the below PCB Layout guidelines must be strictly followed. Place the decoupling capacitors as close as possible to the PVDD, AVDD and GND pins. Keep the differential output traces as wide and short as possible. The traces of (INR & INL) and (LOUT+ & LOUT−, ROUT+ & ROUT−) should be kept equal width and length respectively. ...
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... W-Type 16L QFN 3x3 Package RT9104 1 2 DETAIL A Pin #1 ID and Tie Bar Mark Options Dimensions In Inches Min Max 0.028 0.031 0.000 0.002 0.007 0.010 0.007 0.012 ...
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... RT9104 J I Symbol www.richtek.com Dimensions In Millimeters Min Max 9.804 10.008 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 0.178 0.254 0.102 0.254 5.791 6.198 0.406 1.270 16–Lead SOP Plastic Package H M Dimensions In Inches Min Max 0 ...
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... DIP Plastic Package Richtek Technology Corporation Taipei Office (Marketing) 5F, No. 95, Minchiuan Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)86672399 Fax: (8862)86672377 Email: marketing@richtek.com RT9104 Dimensions In Inches Min Max 0.146 0.170 0.015 0.028 0.126 0.142 0.014 0.022 ...