AW8155 July 2018 V1.1 Non-Crack-Noise, Ultra-Low-EMI, TDD Suppression Second Generation Class-D Audio Amplifier GENERAL DESCRIPTION Ultra low THD+N:0.06% The AW8155 is a non-crack-noise (NCN), ultralow-EMI, filter-free, AB/D output mode selection, second generation Class-D audio amplifier. Ultra low THD+N,Unique NCN function, which adjusts the system gain automatically while detecting the "Crack" distortion of output signal, protects the speaker from damage at high power levels and brings the most comfortable listening experience to the customers. l FEATURES ti a AB/D operate mode Two NCN level0.65w and0.85w TDD suppression EEE Function, Greatly reduces EMI over the n full bandwidth Excellent Pop-Click Supression AW8155 NCN output power can be set to 0.65w or 0.85w for different speakers, this feature is embedded in order to protect speakers from damage caused by an excessive sound level. e Pin compatible with AW8145 fi d No VREF capacitor One-pulse control Filter-Free Class-D Architecture The AW8155 features a unique RNS and net audio technology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer. High PSRR (-70dB at 217Hz) n Low Shutdown Current (<0.1A) Over-Current Protection Over-Temperature Protection ic C Small 1.5mmx1.5mm FC-9 Package o Power Supply Range: 2.5V~5.5V APPLICATIONS in Cellular Phones The AW8155 features the EEE (Enhanced Emission Elimination) function which greatly reduces EMI over the full bandwidth. The AW8155 achieves better than 20dB margin under FCC limits with 24 inch of cable. The filter-free PWM architecture and internal gain setting reduces external components count, board area consumption, system cost and simplifies the design. The over-current, over-temperature is prepared inside of the device. The AW8155 is available in an ultra small 1.5mmx1. 5mm FC-9 package. The AW8155 is specified over the industrial temperature range of -40 to +85. MP3/PMP w GPS a Digital Photo Frame www.awinic.com.cn 1 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 PIN CONFIGURATION AND TOP MARK AW8155FCR MARKING PGND VON 3 2 VDD AGND CTRL 2 1 INP AGND INN 1 A B C A55 XXX A B l VOP C ti a 3 n AW8155FCR TOP VIEW e A55 - AW8155FCR XXX - Manufacture Date Code fi d Pin Configuration and Top Mark of AW8155 PIN DEFINITION Symbol Description A1 INP Positive audio input A2 VDD Power Supply A3 VOP Positive audio output B1 AGND B2 AGND B3 PGND C1 INN C2 CTRL Shutdown and NCN control pin C3 VON Negative audio output o n No. Analog ground C Analog ground Power ground a w in ic Negative audio input www.awinic.com.cn 2 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 TYPICAL APPLICATION Cs 1F Cin 33nF VDD l 33nF INP VOP INN CTRL VON fi d 10k e GPIO n AW8155 ti a Cin PGND n AGND Cin 33nF Cin 33nF Cs 1F VDD INP INN VOP AW8155 GPIO CTRL VON 10k a w in ic C o AW8155 Application Schematic With Differential Input AGND PGND AW8155 Application Schematic With Single-Ended Input www.awinic.com.cn 3 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 ORDERING INFORMATION Temperature Package Marking Moisture Sensitivity Level Environmental Information Packing Type AW8155FCR -4085 FCQFN 1.5*1.5-9L A55 MSL3 ROHS+HF 3000 units/Tape and Reel ti a AW8155 Shipping n R: Tape & Reel Package Type e FC: FCQFN fi d ABSOLUTE MAXIMUM RATINGS(1) Parameter n Supply voltage VDD Input Voltage Unit -0.3V to 6V -0.3V to VDD+0.3V 90/W Operating free-air temperature -40 to 85 Maximum Junction Temperature TJMAX 125 Storage Temperature Range TSTG -65 to 150 Lead Temperature (Soldering 10 Seconds) 260 C o Package Thermal Resistance JA(2) ESD Rating(3) l Part Number 8KV ic HBM(human body model) Latch-up note1: in Test Condition :JEDEC STANDARD NO.78B DECEMBER 2008 a w Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to 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. www.awinic.com.cn 4 +IT:450mA -IT:-450mA For the 9-Pin Flip-Chip CSP package, the JA is highly dependent of the PCB Heatsink area. For example, JA can equal 195C/W with 50 mm2 total area and also 135C/W with 500 mm2. When using ground and power planes, the value is around 90C/W, as specified in table . note2: note3: The human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin. Test method: MIL-STD-883G Method 3015.7. Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 OPERATE MODE DESCRIPTION mode CTRL operating AV NCN power V/V RNS Net audio Class_D 8 0.65 mode 2 Class_D 12 0.85 mode 3 Class_D 12 0.85 mode 4 Class_AB 12 n e fi d Test Condition: TA=25(Unless otherwise specified) Power supply voltage VIH CTRL high input voltage VIL CTRL low input voltage Vin=0vVDD=2.5V to 5.5V ISD Shutdown current VDD=3.6VCTRL =0V fSW Modulation Frequency VDD=2.5V to 5.5V TSD Thermal Protect level TSDR Thermal Hysteresis TON Start-up time Rini Internal impedance w C ic Output power a PO o Output offset voltage in |VOS| Conditions n VDD ELECTRICAL CHARACTERISTICS Parameter ti a mode1 l W Min Max Units 2.5 5.5 V 1.3 VDD V 0 0.35 V 0 40 mV 0.1 1 A 600 800 1000 kHz 140 160 170 100 120 130 30 40 50 ms 20 28.5 35 k -40 Typ THD+N=10%f=1kHzRL=4VDD=5V 2.61 W THD+N=1%f=1kHzRL=4VDD=5V 2.11 W THD+N=10%f=1kHzRL=8VDD=5V 1.63 W THD+N=1%f=1kHzRL=8VDD=5V 1.32 W THD+N=10%f=1kHzRL=4VDD=4.2V 1.79 W THD+N=1%f=1kHzRL=4VDD=4.2V 1.46 W THD+N=10%f=1kHzRL=8VDD=4.2V 1.13 W THD+N=1%f=1kHzRL=8VDD=4.2V 0.92 W THD+N=10%f=1kHzRL=4VDD=3.6V 1.28 W THD+N=1%f=1kHzRL=4VDD=3.6V 1.05 W THD+N=10%f=1kHzRL=8VDD=3.6V 0.82 W THD+N=1%f=1kHzRL=8VDD=3.6V 0.65 W 4.3 mA 86 % Mode 1 Iq Quiescent current VDD=3.6Vno vin, no load Efficiency VDD=3.6VPo=0.8WRL=8 www.awinic.com.cn 5 80 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 THD+N PO NCN Cin=33nFrin=0 Power suppression ration VDD=4.2VVp-p_sin=200mV 7 8 217Hz -55 -72 dB 1kHz -55 -69 dB VDD=4.2VPo=0.5WRL=8f=1kHz 0.06 0.1 % VDD=3.6VPo=0.25WRL=8f=1kHz 0.06 0.1 % NCN output power f=1kHzRL=8VDD=4.2V 0.65 W ms Attack time(-11dB) 32 TRL Release time(11dB) 2 AMAX Max attenuation -10 VDD=3.6V, Cin=33nFRin=0, RL = 8 Speaker Output noise VDD = 5 V, PO = 1 W, RL = 8 Iq Quiescent current VDD=3.6Vno load Efficiency VDD=3.6VPo=0.8WRL=8 Voltage gain Cin=33nF Power suppression ration VDD=4.2VVp-p_sin=200mV Mode 2 PO NCN % 11 12 217Hz 55 -71 dB 1kHz 55 -70 dB fi d e 86 13 V/V 0.1 % VDD=3.6VPo=0.25WRL=8f=1kHz 0.06 0.1 % NCN output power f=1kHzRL=8VDD=4.2V Release time(11dB) AMAX Max attenuation Speaker Output noise ic Signal-to-noise ratio -11 VDD=3.6V, Cin=33nFRin=0, RL = 8 0.85 W 40 ms 2.6 s -13.5 -15 dB 140 V VDD = 5 V, PO = 1 W, RL = 8 89 dB 4.3 mA % f=20Hz-20kHz,input AC grounded Iq Quiescent current VDD=3.6Vno vin, no load Efficiency VDD=3.6VPo=0.8WRL=8 80 86 Voltage gain Cin=33nF 11 12 217Hz -60 -81 dB Power suppression ration VDD=4.2VVp-p_sin=200mV 1kHz -60 -75 dB in Av w PSRR THD+N PO NCN a dB 0.06 TRL Mode 3 92 VDD=4.2VPo=0.5WRL=8f=1kHz Attack time(-11dB) SNR V Total harmonic distortion plus noise TAT Vn 100 80 n THD+N dB mA o PSRR -12 4.3 C Av -11 s n f=20Hz-20kHz,input AC grounded Signal-to-noise ratio SNR V/V Total harmonic distortion plus noise TAT Vn 9 13 V/V Total harmonic distortion plus noise VDD=4.2VPo=0.5WRL=8f=1kHz 0.06 0.1 % VDD=4.2VPo=0.25WRL=8f=1kHz 0.06 0.1 % NCN output power f=1kHzRL=8VDD=4.2V 0.85 W TAT Attack time(-13.5dB) 40 ms TRL Release time(13.5dB) 2.6 s AMAX Max attenuation -13.5 dB VLIMIT Net audio Vth(Vp) AMAX1 Net audio max attenuation Vn SNR Speaker Output noise Signal-to-noise ratio www.awinic.com.cn VDD=4.2V -15 VDD=3.6V, Cin=33nFRin=0, RL = 8 f=20Hz-20kHz,input AC grounded VDD = 5 V, PO = 1 W, RL = 8 6 l PSRR Voltage gain ti a Av 15 30 mVp -16 -17 dB 35 V 101 dB Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 Mode 4 VDD=3.6Vno vin, no load Efficiency VDD=3.6VPo=0.8WRL=8 Voltage gain Cin=33nF Power suppression ratio VDD=4.2VVp-p_sin=200mV PSRR THD+N Vn SNR Total harmonic distortion plus noise mA 70 77 % 11 12 217Hz -55 -70 dB 1kHz -55 -68 dB VDD=4.2VPo=0.5WRL=8f=1kHz 0.2 VDD=4.2VPo=0.25WRL=8f=1kHz 0.2 VDD=3.6V, Cin=33nFRin=0, RL = 8 Speaker Output noise f=20Hz-20kHz,input AC grounded VDD = 5 V, PO = 1 W, RL = 8 Signal-to-noise ratio one-wire pulse control CTRL high level hold time VDD=2.5V to 5.5V 0.75 TL CTRL low level hold time VDD=2.5V to 5.5V 0.75 TLATCH CTRL turn on delay time VDD=2.5V to 5.5V TOFF CTRL turn off delay time VDD=2.5V to 5.5V 0.5 V/V % 0.5 % 120 V 90 dB 2 10 us 2 10 us 500 us 500 us fi d e TH 13 n Av 4.5 l Quiescent current ti a Iq n MEASUREMENT SYSTEM C o AW8155 features switching output signal when it operate in mode 1~3. As shown in Figure 4. A Low-Pass RC filter can be used to remove high switching frequency in output signal INP 10nF 500 VOP ic Cin 32kHz Low-Pass Fliter AW8155 VON INN 500 w in Cin 10nF AW8155 measurement system a Table 1 shows recommended values of Rfilter and Cfilter Rfilter Cfilter Low-pass cutoff frequency 500 10nF 32kHz 1k 4.7nF 34kHz Typical RC Measurement Filter Values www.awinic.com.cn 7 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 TYPICAL OPERATING CHARACTERISTICS EFFICIENCY vs OUTPUT POWER EFFICIENCY vs OUTPUT POWER 100 100 90 80 70 70 60 50 VDD=3.6V VDD=4.2V VDD=5V 40 30 60 50 VDD=3.6V VDD=4.2V VDD=5V 40 30 20 20 RL=8+33uH 0 0.4 0.6 0.8 1.0 1.2 1.4 Output Power ( W ) 1.6 1.8 0 0.2 0.6 0.4 0.8 1.0 1.2 1.4 1.6 1.8 Output Power ( W ) fi d e 0.2 RL=8+33uH 10 n 10 0 0 Class-AB l 80 ti a Class-D Efficiency ( % ) Efficiency ( % ) 90 OUTPUT POWER vs SUPPLY VOLTAGE OUTPUT POWER vs SUPPLY VOLTAGE 2.5 RL=8+33uH f=1kHz 3.5 n 1.5 1 3.5 4.5 4 Supply Voltage ( V ) 5 1.5 0.5 0 2.5 5.5 THD+N vs Frequency 4.5 5 5.5 THD+N vs Frequency in Class-AB VDD=4.2V Cin=1F RL=8+33H 1 THD+N (%) THD+N (%) w 4 10 Class-D VDD=4.2V Cin=1F RL=8+33H a 3.5 3 Supply Voltage ( V ) 10 250mw 500mw 0.1 0.01 20 1% THD 10% THD 2 ic 3 2.5 RL=4+33uH f=1kHz 1 C 0.5 0 2.5 Output Power ( W ) 3 1% THD 10% THD o Output Power ( W ) 2 4 1 250mw 500mw 0.1 100 1K 10K 20K 100 1K 10K 20K Frequency ( Hz ) Frequency ( Hz ) www.awinic.com.cn 0.010 20 8 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 SUPPLY CURRENT vs SUPPLY VOLTAGE THD+N vs OUTPUT POWER 8 0.1 6 5 l VDD=5V VDD=4.2V VDD=3.6V 1 Class-AB Class-D 7 Supply Current ( mA ) THD+N (%) Mode1 f=1kHz RL=8+33H ti a 10 4 RL=8+33uH 3 2 0.01 0.1 0.5 2.5 2 1 3.0 fi d n NCN o 0.1 0.05 0.2 0.4 0.5 OUTPUT POWER (W) 1 0.5 0.01 0.1 5.5 OUTPUT POWER vs VIN 2 mode1 VDD=4.2V f=1kHz RL=8+33H C OUTPUT POWER (W) 1 5.0 e OUTPUT POWER vs VIN 2 3.5 4.0 4.5 Supply Voltage ( V ) n OUTPUT POWER ( W ) 1 0.5 NCN 0.1 0.05 0.01 0.1 2 mode2 VDD=4.2V f=1kHz RL=8+33H 0.4 0.5 0.2 VIN ( Vp ) 1 2 in ic VIN ( Vp ) PSRR vs Frequency PSRR vs Frequency -10 w -20 PSRR (dB) a -30 0 Class-D mode1 f=1kHz RL=8+33H -10 -20 VDD=5V VDD=4.2V VDD=3.6V -30 PSRR (dB) 0 -40 -50 -50 -60 -70 -70 -80 -80 100 1K 10K 20K -90 20 100 1K 10K 20K Frequency ( Hz ) Frequency ( Hz ) www.awinic.com.cn VDD=5V VDD=4.2V VDD=3.6V -40 -60 -90 20 Class-D mode2 f=1kHz RL=8+33H 9 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 PSRR vs Frequency Class-D mode3 f=1kHz RL=8O+33H -20 -20 VDD=5V VDD=4.2V VDD=3.6V VDD=5V VDD=4.2V VDD=3.6V -30 PSRR (dB) -30 Class-AB mode4 f=1kHz RL=8O+33H -10 -40 -50 -60 -40 l -10 PSRR (dB) PSRR vs Frequency 0 -50 ti a 0 -60 -70 -70 -80 -80 100 -90 20 10K 20K 1K 100 1K 10K 20K n -90 20 Frequency ( Hz ) e Frequency ( Hz ) 24 22 20 14 n 16 mode1 mode2 mode3 mode4 12 10 8 o Gain (dB) 18 2 20 100 1K C 6 4 Output Noise Voltage (V) fi d NOISE FLOOR Gain vs Frequency 10K 20K 20 mode1 mode2 mode3 mode4 100 1K Frequency(Hz) 10K 20K in ic Frequency ( Hz ) 300u 280u 260u 240u 220u 200u 180u 160u 140u 120u 100u 80u 60u 40u 20u Class_AB shutdown time VOP & VON VOP & VON CTRL CTRL a w Class_AB start up time 10ms/div www.awinic.com.cn 10ms/div 10 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 Class_D shutdown time Class_D start up time CTRL ti a l CTRL VOP&VON n VOP&VON 100s/div e 10ms/div NCN release time fi d NCN attack time Vin n Vin VOP-VON C o VOP-VON 200ms/div ic 5ms/div Net audio start up time Vin VOP-VON a w in Vin Net audio shutdown time www.awinic.com.cn VOP-VON 200ms/div 8ms/div 11 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 BLOCK DIAGRAM Cs 1F Cin Cin Class-AB INP 33nF INN 33nF ti a RNS l VDD VOP Input Buffer Class-D Modulator D&AB Output Stage EEE Module 10k 100pF Oscillator OCP AW8155 AGND e NCN & System Control FB PGND OTP fi d CTRL GPIO 100pF n VON FB n Functional Block Diagram of AW8155 o OPERATION C The AW8155 is a non-crack-noise (NCN), ultra-low-EMI, filter-free, AB/D output mode selection, second generation Class-D audio amplifier. Ultra low THD+N, Unique NCN function, which adjusts the system gain automatically while detecting the "Crack" distortion of output signal, protects the speaker from damage at high power levels and brings the most comfortable listening experience to the customers. ic AW8155 NCN output power can be set to 0.65w or 0.85w for different speaker, this feature is embedded in order to protect speakers from damage caused by an excessive sound level. in The AW8155 features a unique RNS and net audio technology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer. The AW8155 features the EEE (Enhanced Emission Elimination) function which greatly reduces EMI over the full bandwidth. The AW8155 achieves better than 20dB margin under FCC limits with 24 inch of cable. w The filter-free PWM architecture and internal gain setting reduces external components count, board area consumption, system cost and simplifies the design. The over-current, over-temperature is prepared inside of the device. a The AW8155 is available in an ultra small 1.5mmx1. 5mm FC-9 package. The AW8155 is specified over the industrial temperature range of -40 to +85. One-wire pulse control AW8155 select each mode by one-wire pulse control, as shown in figure 6. When CTRL pin pull high form shutdown mode, there is one rising edge, AW8155 start to work and set Gain=18dB, NCN level=0.65w. When high-low-high signal set to CTRL pin, there are two rising edges, AW8155 start to work and set www.awinic.com.cn 12 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 Gain=21.5dB,NCN level=0.85w. When there are three rising edges, AW8155 start to work and set Gain=21.5dB,net audio is enable. When there are four rising edges, AW8155 start to work in Class_AB mode,while gain is to be set 21. 5dB.. As shown in figure 6, when CTRL pull down above 500us, AW8155 will enter shutdown mode. l Mode 1 ti a Mode 2 Mode 3 n Mode 4 TOFF fi d One-Wire pulse control e 0.75us<TL,TH<10us TH TL When AW8155 work in different mode,PIN CTRL should be low above 500us which make the AW8155 shut down, Then series pulse make the AW8155 work in right mode. MODE2 n 1ms CTRL MODE3 C o One-wire pulse mode switch RNS (RF TDD Noise Suppression) GSM radios transmit using time-division multiple access with 217Hz intervals. The result is an RF signal with ic strong amplitude modulation at 217Hz and its harmonics that is easily demodulated by audio amplifiers. In RF applications, improvements to both layout and component selection decrease the AW8155's susceptibility to RF noise and prevent RF signals from being demodulated into audible noise. Minimizing the trace in lengths prevents them from functioning as antennas and coupling RF signals into the AW 8155. Additional RF immunity can also be obtained from relying on the self-resonant frequency of capacitors as it exhibits the frequency response similar to a notch filter. Depending on the manufacturer, 10pF to 20pF capacitors typically w exhibit self resonance at RF frequencies. These capacitors, when placed at the input pins, can effectively shunt the RF noise at the inputs of the AW8155. For these capacitors to be effective, they must have a low-imped- a ance, low-inductance path to the ground plane. Some RF energy will couple onto audio traces regardless of the effort to prevent this phenomenon from occurring, form audible TDD NoiseThe AW8155 features a unique RNS technology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer. www.awinic.com.cn 13 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 VDD VOP l INP INN AW8155 ti a Cin VON n Cin fi d e GND RF Energy Coupling Diagram n NCN NCNOFF NCNON Crack Noise w in Power Rail Crack Noise ic C o In audio application, output signal will be undesirable distortion caused by too large input and power supply voltage down with battery, and clipped output signal may cause permanent damage to the speaker. The AW8155 features unique non-crack-noise (NCN) Function, which adjusts system gain automatically to generate desired output by detecting the "Crack" distortion of output signal, protects the speaker from damage at high power levels and brings the most comfortable listening experience to the customers. a Power Rail NCNOFF NCNON NCN Function Diagram Attack time Attack time is the time it takes for the gain to be reduced once the audio signal exceeds the NCN threshold. Fast attack times allow the NCN to react quickly and prevent transients such as symbol crashes from being www.awinic.com.cn 14 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 distorted. However, fast attack times can lead to volume pumping, where the gain reduction and release becomes noticeable, as the NCN cycles quickly. Slower attack times cause the NCN to ignore the fast transients, and instead act upon longer, louder passages. Selecting an attack time that is too slow can lead to increased distortion in the case of the No Clip function. Attack time is set 32ms~40ms in AW8155. Release time ti a l Release time is the time it takes for the gain to return to its normal level once the audio signal returns below the NCN threshold. A fast release time allows the NCN to react quickly to transients, preserving the original dynamics of the audio source. However, similar to a fast attack time, a fast release time contributes to volume pumping. A slow release time reduces the effect of volume pumping. Release time is set 2s~2.6s in AW8155. Filter-Free Modulation Scheme e n The AW8155 features a filter-free PWM architecture that reduces the LC filter of the traditional Class-D amplifier, increasing efficiency, reducing board area consumption and system cost. fi d Net audio The net audio function is the function that removes unwanted noise coming in at no-siganl state. It can suppress the 217Hz TDD nosie from input signal. VBAT voltag e o TDD Noise n It can automatically attenuate the output when a signal level becomes lower then the threshold level, C output ic gain When signal lower then the threshold it can automatically attenuate the gain in Net audio Pin-Compatible with AW8145, no VREF capacitor w The AW8155 is pin compatible with AW8145.Without VREF 1 uF capacitor it can achieve the same performance as AW8145,which make the PCB design more convenient. a Efficiency Efficiency of a Class D amplifier is attributed to the switching operation of the output stage transistors. In a Class D amplifier, the output transistors act as current steering switches and consume negligible additional power. Any power loss associated with the Class D output stage is mostly due to the I2R loss of the MOSFET on-resistance and supply current. The AW8155 features efficiency of 88%. www.awinic.com.cn 15 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 EEE The AW8155 features a unique Enhanced Emission Elimination (EEE) technology, that controls fast transition on the output, greatly reduces EMI over the full bandwidth. Pop-Click Suppression ti a l The AW8155 features unique timing control circuit, that comprehensively suppresses pop-click noise, eliminates audible transients on shutdown, wakeup, and power-up/down. Protection Function a w in ic C o n fi d e n When a short-circuit occurs between VOP/VON pin and VDD/GND or VOP and VON, the over-current circuit shutdown the device, preventing the device from being damaged. When the condition is removed, the AW8155 reactivate itself. When the junction temperature is high, the over-temperature circuit shutdown the device. The circuit switches back to normal operation when the temperature decreases to safe levels. www.awinic.com.cn 16 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 APPLICATIONS INFORMATION Supply Decoupling CapacitorCS ti a l The AW8155 is a high-performance audio amplifier that requires adequate power supply decoupling. Place a low equivalent-series-resistance (ESR) ceramic capacitor, typically 0.1F. This choice of capacitor and placement helps with higher frequency transients, spikes, or digital hash on the line. Additionally, placing this decoupling capacitor close to the AW8155 is important, as any parasitic resistance or inductance between the device and the capacitor causes efficiency loss. In addition to the 0.1F ceramic capacitor, place a 1F capacitor on the VBAT supply trace. This larger capacitor acts as a charge reservoir, providing energy faster than the board supply, thus helping to prevent any droop in the supply voltage. Input Capacitor 1 169Hz . 2RinCin e fC n The input coupling capacitor blocks the DC voltage at the amplifier input terminal. The input capacitors and internal input resistors (28.5K) form a high-pass filter with the corner frequency, fc. fi d Setting the high-pass filter point high can block the 217Hz GSM noise coupled to inputs. Better matching of the input capacitors improves performance of the circuit and also help to suppress pop-click noise. 33nF Cin 33nF INP INN o n Differential Input Cin C Differential Input in ic Single-Ended Input Cin 33nF Cin 33nF INP INN Single-Ended Input Ferrite Chip Bead and Capacitor a w The AW8155 passed FCC and CE radiated emissions with no ferrite chip beads and capacitors with speaker trace wires 24 inch.Use ferrite chip beads and capacitors if device near the EMI sensitive circuits and/or there are long leads from amplifier to speaker, placed as close as possible to the output pin. Ferrite Chip Bead VOP 100pF Ferrite Chip Bead VON 100pF Ferrite Chip Bead and capacitor www.awinic.com.cn 17 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 DEMO INFORMATION n fi d e n ti a l schematic a w in ic C o PCB www.awinic.com.cn Top Layer Bottom Layer 18 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 VOLUME DESCRIPTION ti a l Carrier Tape n User Direction of Feed fi d e A0 = 1.78mm B0 = 1.78mm K0 = 0.69mm a w in ic C o n Reel www.awinic.com.cn 19 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 PACKAGE DESCRIPTION TOP VIEW BOTTOM VIEW ti a l 1.5000.050 0.5000.050 O0.2600.050 Typ. PIN A1 CORNER fi d 0.5000.050 e n 1.5000.050 1.000 Ref SIDE VIEW PIN A1 n 0.152 Ref. 0.31 Ref 0.5500.050 Unit: mm a w in ic C o 0.000~0.050 www.awinic.com.cn 20 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 a w in ic C o n fi d e n ti a l REFLOW SOLDERING CURVE www.awinic.com.cn 21 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 VERSION INFORMATION Date V1.0 2011-10-11 Description AW8155FCR datasheet V1.0 2018-07-24 Add MSL Level, environmental information, output noise a w in ic C o n fi d e n V1.1 ti a l Version www.awinic.com.cn 22 Copyright (c) 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW8155 July 2018 V1.1 DISCLAIMER l Information in this document is believed to be accurate and reliable. However, Shanghai AWINIC Technology Co., Ltd (AWINIC Technology) does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. ti a AWINIC Technology reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. Customers shall obtain the latest relevant information before placing orders and shall verify that such information is current and complete. This document supersedes and replaces all information supplied prior to the publication hereof. e n AWINIC Technology products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an AWINIC Technology product can reasonably be expected to result in personal injury, death or severe property or environmental damage. AWINIC Technology accepts no liability for inclusion and/or use of AWINIC Technology products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. n fi d Applications that are described herein for any of these products are for illustrative purposes only. AWINIC Technology makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. 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