AW8736FCR 音频功放.pdf-资料库

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier AW8736 Data Sheet May 2013 V1.5 FEATURES  New generation charge pump technology ： K-Chargepump，efficiency reaches as high as 92%  Power amplifier overall efficiency 75%，greatly prolong mobile phone usage time  Ultra-low distortion：0.02%  Within Lithium battery voltage range, output power is maintained constant  Output Power level：0.8W、1W、1.2W  Second generation Non-crack-noise (NCN) technology  Super TDD-Noise suppression  Ultra-low EMI  One wire pulse control  High PSRR：-65dB（217Hz）  Small 2mm×2mm FC-16package APPLICATIONS  Smart phone DEVICE PINOUT DESCRIPTION AW8736 is designed to enhance smart mobile phone sound quality,which is a new high efficiency, ultra-low distortion, constant large volume, sixth generation class K audio amplifiers. Using a new generation of charge pump technology：K -Chargepump structure, efficiency as high as 92%, power amplifier’s overall efficiency reaches 75%, greatly prolong the mobile phone usage time. unique non-crack-noise (NCN) technology brings high quality music enjoyment. distortion ultra-low 0.02% and AW8736 integrated K-Chargepump booster circuit, the output power cannot drop along with lithium battery voltage lower down. Within lithium battery voltage range(3.3 V - 4.35V), output power is constant, providing high quality music enjoyment. AW8736 has 0.8 W, 1 W and 1.2 W three output power level, recommended using rated power of 0.7W and above speakers, which greatly improve the volume, and effectively protect speakers. The AW8736 uses awinic proprietary TDD-Noise suppression suppression technology, effectively restrain TDD-Noise and EMI interference. and EMI technology over built-in AW8736 protection, over-temperature protection and short circuit protection function, effectively protect the chip. The AW8736 uses small 2mmx2mm FC-16 package. current Figure 1 AW8736FCR pin diagram top view and device marking COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 1 AW8736FCR TOP VIEWINPINNSHDNGNDPVDDC2NC2NC2PC1PC1NVDDVDDVOPVONGND1234ABCDGND1234ABCD8736XXXXAW8736FCR MARKING8736 – AW8736FCRXXXX–Production tracking codePlease notice the pin number

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier PIN DESCRIPTION AW8736 Data Sheet May 2013 V1.5 Number Symbol Description A1 A2 A3，B3 A4 B1 B2 B4 C1 C2 C3 C4 D1 D2 D3 D4 INP INN VDD SHDN C2N VOP C1N GND C2P C1P PVDD VON Positive audio input terminal Negative audio input terminal Power supply Chip power down pin，active low；one wire pulse control； Negative side of the external charge pump flying capacitor C2 Positive audio output terminal Negative side of the external charge pump flying capacitor C1 Ground Positive side of the external charge pump flying capacitor C2 Positive side of the external charge pump flying capacitor C1 Boost charge pump output voltage Negative audio output terminal APPLICATION DIAGRAM Figure 2 AW8736 single-ended input application diagram (Note 1) Note1：when single-ended input，input audio signal can arbitrarily connect to one of INN，INP input terminal， the other terminal connects to ground through input capacitor and resistance. COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 2 C1PAW8736C1NCOUT4.7uFPVDDINPINN3KΩ15nF3KΩ15nFCinCinRinRinVOPVONGNDVDDSHDNPulse Input12CF12.2uFCS14.7uFVBAT34C1220pFA4A2A1C2,C3,C4B4D4B1B2C21nFC31nFD3A3,B3D2C1C2PC2NCF22.2uFB1,B2D1CS20.1uFSingle-Ended Input

AW8736 Data Sheet May 2013 V1.5 High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier Filter capacitor Cs suggest using X7R/X5R ceramic capacitors, if using tantalum capacitors, one ceramic capacitor greater than 1 uF must be placed near the VDD pin to filter high frequency interference signal. Figure 3 AW8736 differential input application diagram ORDERING INFORMATION Product Type Operation temperature range Package Device Marking Delivery Form AW8736FCR -40℃～85℃ FC-16 8736 Tape and Reel 3000 pcs COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 3 C1PAW8736C1NCOUT4.7uFPVDDINPINN3KΩ15nF3KΩ15nFCinCinRinRinVOPVONGNDVDDSHDNPulse Input12CF12.2uFCS14.7uFVBAT34C1220pFA4A2A1C2,C3,C4B4D4B1B2C21nFC31nFD3A3,B3D2C1C2PC2NCF22.2uFB1,B2D1CS20.1uFDifferential InputAW8736ShipmentR: Tape & ReelPackage typeFC: FC16

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier ABSOLUTE MAXIMUM RATING(Note2) AW8736 Data Sheet May 2013 V1.5 Parameter Supply Voltage VDD Range -0.3V to 6V INP，INN Input Pin Voltage -0.3V to VDD+0.3V Package Thermal Resistance θJA 69℃/W Ambient Temperature Range -40℃ to 85℃ Maximum Junction Temperature TJMAX 125℃ Storage Temperature Range TSTG -65℃ to 150℃ Lead Temperature（Soldering 10 Seconds） ESD Rating（Note 3） HBM（human body model） Latch-up Test Condition：JEDEC STANDARD NO.78B DECEMBER 2008 260℃ ±6KV +IT：450mA -IT：-450mA Note 2：Stresses beyond those listed under "absolute maximum ratings" may cause permanent damageto the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Note 3：The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. Test method: MIL-STD-883G Method 3015.7 MODE DESCRIPTION AW8736 audio amplifier outer input capacitor is Cin，outer input resist is Rin，inner input resist is 16.5KΩ， gain Av is 320K/(Rin+16.5K). Recommended typical application is： 1、 Cin=15nF，Rin=3KΩ，Av=16.3V/V； 2、 Cin=15nF，Rin=10KΩ，Av=12V/V； Mode MODE1 MODE2 MODE3 MODE4 Enable Signal Gain（V/V） NCN Power（W） RL=8Ω RL=4Ω NCN function 16.3 16.3 16.3 16.3 12 12 12 12 1.2 1 0.8 2.25 2 1.6 1.65W@THD=1% 2.15W@THD=1% √ √ √ COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 4

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier AW8736 Data Sheet May 2013 V1.5 ELECTRICAL CHARACTERISTICS Test condition：TA=25℃（unless otherwise noted） Parameter Test conditions Min Typ Max Units VDD Power supply voltage VIH VIL high input voltage low input voltage |VOS| Output offset voltage Vin=0V，VDD=3.0V to 5.0V ISD Shutdown current VDD=3.6V， =0V TTG TTGR TSD TSDR Thermal AGC start temperature threshold Thermal AGC exit temperature threshold Over temperature protection threshold Over temperature protection recovery threshold TON Start-up time K-Chargepump PVDD Output voltage Vhys OVP hysteresis VDD =3.0V to 3.8V VDD >3.8V VDD >3.8V 3.0 1.3 0 -30 0 150 130 160 130 40 1.5* VDD 5.8 50 5.0 VDD 0.35 30 1 V V V mV μA ℃ ℃ ℃ ℃ ms V V mV Charge Pump frequency VDD=3.0V to 5.0V 0.8 1.06 1.33 MHz FCP ηCP TST IL Charge pump efficiency VDD=4.2V, Iload=200mA Soft-start time No load，COUT=4.7uF Current limit when PVDD short to ground Class K power amplifier（mode1-mode4） Iq η Quiescent current VDD=3.6V，Vin=0，no load Efficiency VDD=4.2V，Po=1.2W，RL=8Ω 1 92 1.2 350 9.5 75 1.4 % ms mA mA % Fosc Modulation frequency VDD=3.0V to 5.0V 600 800 1000 kHz Av gain Outside input resistance=3kΩ Rini Inner input resistance Mode1 NCN output power Pncn Mode2 NCN output power Mode3 NCN output power VDD=4.2V，RL=8Ω VDD=4.2V，RL=4Ω VDD=4.2V，RL=8Ω VDD=4.2V，RL=4Ω VDD=4.2V，RL=8Ω VDD=4.2V，RL=4Ω 16.3 16.5 1.2 2.25 1 2 0.8 1.6 PSRR Power supply rejection ratio VDD=4.2V，Vp-p_sin=200mV 217Hz -53 -65 COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 5 V/V kΩ W W W W W W dB SHDNSHDNSHDN

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier AW8736 Data Sheet May 2013 V1.5 1kHz -53 -65 0.75 0.75 150 150 84.5 87.5 155 0.02 0.02 2.0 1.65 1.5 1.23 2.58 2.15 1.85 1.55 2 2 10 10 500 500 dB dB dB uVrms % % W W W W W W W W us us us us ms s dB SNR Signal-to-noise ratio VDD=4.2V，Po=0.8W，RL=8Ω VDD=4.2V，Po=1.65W，RL=8Ω Vn Output noise voltage VDD=4.2V，f=20Hz to 20kHz， input ac grounded A-weighting THD+N Total harmonic distortion+noise PO Mode4 output power VDD=4.2V,Po=1W,RL=8Ω,f=1kHz,Mode1 VDD=4.2V,Po=1.2W,RL=8Ω,f=1kHz,Mode4 THD+N=10%，f=1kHz，RL=8Ω，VDD=4.2V THD+N=1%，f=1kHz，RL=8Ω，VDD=4.2V THD+N=10%，f=1kHz，RL=8Ω，VDD=3.6V THD+N=1%，f=1kHz，RL=8Ω，VDD=3.6V THD+N=10%，f=1kHz，RL=4Ω，VDD=4.2V THD+N=1%，f=1kHz，RL=4Ω，VDD=4.2V THD+N=10%，f=1kHz，RL=4Ω，VDD=3.6V THD+N=1%，f=1kHz，RL=4Ω，VDD=3.6V One wire pulse control TH TL TLATCH TOFF high level duration time VDD=3.0V to 5.0V low level duration time VDD=3.0V to 5.0V turn on delay time VDD=3.0V to 5.0V turn off delay time VDD=3.0V to 5.0V NCN（note 4） TAT TRL Attack time(-13.5dB) Release time（13.5dB） AMAX Maximum attenuation 40 1.2 -13.5 Note 4：Attack time points to 13.5dB gain attenuation time；Release time points to 13.5dB gain recovery time. MEASUREMENT SYSTEM AW8736 features switching digital output, as shown in Figure 4. Need to connect a low pass filter to VOP/VON output respectively to filter out switch modulation frequency, then measure the differential output of filter to obtain ananlog output signal. Figure 4 AW8736 test setup COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 6 SHDNSHDNSHDNSHDNVOPVONINPINNRinCinK6RinCin30kHzLow-Pass Fliter500Ω500Ω10nF10nF

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier Low pass filter uses resistance and capacitor values listed in Table 2. AW8736 Data Sheet May 2013 V1.5 Rfilter 500Ω 1kΩ Cfilter 10nF 4.7nF Low-pass cutoff frequency 32kHz 34kHz Table 2 AW8736 recommended values for low pass filter COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 7

High efficiency、Ultralow distortion、Constant large volume、Sixth generation Class K Audio Amplifier TYPICAL CHARACTERISTICS AW8736 Data Sheet May 2013 V1.5 COPYRIGHT ©2012 SHANGHAI AWINIC TECHNOLOGY CO., LTD. 8 00.20.40.60.81.01.23.33.53.94.3Supply Voltage ( V )NCN Output Power( W )NCN OUTPUT POWER vs SUPPLY VOLTAGE3.74.11.4RL=8Ω+33μHMODE1MODE2MODE3010203040506070809010000.20.40.60.811.21.41.61.82Output Power ( W )Efficiency( % )AMPLIFIER EFFICIENCY vs OUTPUT POWERRL=8Ω+33μHVDD=4.2VVDD=3.6VVDD=3.3V162424681012141820225010020K1K10KGAIN vs FREQUENCYFrequency ( Hz )Gain( V/V )010203040506070809010000.20.40.60.811.21.41.61.82Output Power ( W )Efficiency( % )K-CHARGEPUMP EFFICIENCY vs OUTPUT POWERVDD=4.2VCF1,CF2=2.2μFCOUT=4.7μFRine=3kΩCin=1μFRL=8Ω+33μH1100.10.01THD+N vs FREQUENCYTHD+N (%)Frequency ( Hz )5010020K1K10KMODE1VDD=4.2VRine=3kΩCin=1μFRL=8Ω+33μH1100.10.01THD+N vs FREQUENCYTHD+N (%)Frequency ( Hz )5010020K1K10KMODE2VDD=4.2VRine=3kΩCin=1μFRL=8Ω+33μHAW8736 output power remain constant

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