® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier FEATURES GENERAL DESCRIPTION 3.3 W Into 4Ω from 5.5V power supply at THD+N = 10% (Typ.). 2.0 W Into 8Ω from 5.5V power supply at THD+N = 10% (Typ.). 2.5V~5.5V Power supply. Low shutdown current. Low quiescent current. Minimum external components. No output filter required for inductive loads. Output pin short-circuit protection and automatic recovery. (short to output pin, short to GND, short to VDD). Low noise during turn-on and turn-off transitions. Lead free and green package available. (RoHS Compliant) 8-pin MSOP package. The LY8005 is a high efficiency, 3.3 W mono class D audio power amplifier. It is a low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplify design. The LY8005 is designed to meet of portable electronic devices. The LY8005 is a single 5.5V power supply, it is capable of driving 4Ω speaker load at a continuous average output of 3.3 W with 10% THD+N. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the LY8005.The gain of the LY8005 is externally configurable which allows independent gain control from multiple sources by summing the signals. Output short circuit and thermal overload protection prevent the device from damage during fault conditions. APPLICATION Portable electronic devices Mobile Phones PDAs PIN CONFIGURATION Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 1 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 PIN DESCRIPTION SYMBOL Pin No. DESCRIPTION SHUTDOWN 1 Shutdown the device.(when LOW level is shutdown mode). NC 2 No internal connection +IN 3 Positive input -IN 4 Negative input Vo+ 5 Positive BTL output VDD 6 Power supply GND 7 Ground Vo- 8 Negative BTL output ORDERING INFORMATION Ordering Code LY8005ULT Packing Type Tape&Reel Speaker Channels Mono Pin/ Package Output Power (THD+N=10%) Input Type Output Type MSOP8 3.3W/4Ω @5.5V_BTL 2.7W/4Ω @5.0V_BTL 2.0W/8Ω @5.5V_BTL 1.6W/8Ω @5.0V_BTL SE/ DF BTL Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 2 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 APPLICATION CIRCUIT Figure 1. Application Schematic With Differential Input Configuration Figure 2. Application Schematic With Single-Ended Input Cofiguration Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 3 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier ABSOLUTE MAXIMUM RATINGS* PARAMETER Supply Voltage Operating Temperature Input Voltage Storage Temperature Power Dissipation ESD Susceptibility Junction Temperature Soldering Temperature (under 10 sec) SYMBOL VDD TA VI TSTG PD VESD TJMAX TSOLDER RATING 6.0 -40 to 85 (I grade) -0.3V to VDD +0.3V -65 to 150 Internally Limited 2000 150 260 UNIT V ℃ V ℃ W V ℃ ℃ ELECTRICAL CHARACTERISTICS (TA = 25℃,Unless otherwise noted) *2 SYMBOL TEST CONDITION MIN. MAX. TYP. 2.5 5.5 VDD VIH Shutdown 1.3 VDD VIL Shutdown 0 0.35 VI = 0 V, Av = 2 V/V, 25 |VOS| VDD = 2.5 V to 5.5 V VDD = 5.0 V, RL=4Ω, Inputs= GND, Av=2, -55 Power supply rejection ratio PSRR Vpp=200mV, Cs=Delete. f=217Hz 3.5 VDD = 5.5V, No Load Quiescent Current IQ VDD = 3.6V, No Load 3.0 VDD = 2.5V, No Load 2.5 VSHUTDOWN ≦0.5V, Shutdown Current ISD 0.1 2.0 VDD = 2.5V to 5.5V VDD= 2.5V to 5.5V Total Gain (*) [150KΩ / (5KΩ+Ri)] x2 RL = 8Ω (*1)Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(TYP.) and TA = 25℃ PARAMETER Supply voltage High-level input voltage Low-level input voltage Output offset voltage (measured differentially) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 4 UNIT V V V mV dB mA µA V/V ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 OPERATING CHARACTERISTICS (TA = 25℃, Gain = 2V/V) PARAMETER SYMBOL TEST CONDITION MAX. - UNIT VDD=2.5V TYP. 3.3 2.75 1.4 0.6 2.6 2.15 1.1 0.1 2.0 1.6 0.8 0.4 1.6 1.3 0.7 0.1 VDD=5.0V - 88 - dB VDD=5.0V - 79.4 - uVRMS VDD=5.5V THD+N= 10%, f = 1 kHz, RL= 4Ω VDD=5.0V VDD=3.6V VDD=2.5V VDD=5.5V THD+N= 1%, f = 1 kHz, RL= 4Ω Out Power VDD=5.0V VDD=3.6V VDD=2.5V PO VDD=5.5V THD+N= 10%, f = 1 kHz, RL= 8Ω VDD=5.0V VDD=3.6V VDD=2.5V VDD=5.5V THD+N= 1%, f = 1 kHz, RL= 8Ω Signal-to-noise ratio SNR Output voltage noise Vn RL = 4Ω, Input=GND, 1.0W=0dB Input=GND,RL=4Ω,Av=2 f = 20 Hz to 20 kHz, *1 MIN. - VDD=5.0V VDD=3.6V W Frequency Fc VDD = 2.5V~5.5V - 250 - kHz Start-up time from shutdown ZI VDD = 2.5V~5.5V - 1 - ms (*1)Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(TYP.) and TA = 25℃ Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 5 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier TYPICAL PERFORMANCE CHARACTERISTICS Figure 3 Total Harmonic Distortion + Noise vs Output Power (4Ω) Figure 4 Total Harmonic Distortion + Noise vs Output Power (8Ω) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 6 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier Figure 5 Noise Level Figure 6 Freq. vs. Response Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 7 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 SD Current vs SD Voltage Quiescent vs Supply voltage QUIESCENT CURRENT SD Current vs SD Vo;tage 140 2.5v 4 3.6v 3.8 Iq-Quiescent Current-mA 120 5v SD Current 100 80 60 40 20 vs SUPPLY VOLTAGE No Load 8Ω 3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 0 2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2.5 3 3.5 Voltage Supply Current vs Output Power (RL=4Ω) SUPPLY CURRENT vs 4.5 5 5.5 Supply Current vs Output Power (RL=8Ω) SUPPLY CURRENT vs OUTPUT POWER OUTPUT POWER 500 1000 900 800 700 600 500 400 300 200 100 0 2.5V Supply Current -mA 2.5V Supply Current-mA 3.6V 5V 3.6V 400 5V 300 200 100 0 0 0.2 0.4 0.8 1.2 1.6 2 2.4 2.8 0 3 0.2 0.4 0.6 0.8 Po-Output Power-W RL=4 ohm 1 1.2 1.4 1.6 1.8 2 Po-Output Power-W RL=8ohm Load Resistance vs Output Power (THD+N=10%) Load Resistance vs Output Power (THD+N=1%) OUTPUT POWER vs RL OUTPUT POWER vs RL 3 2.5 2.5v 2.5v 3v 2.5 3v 3.6v 2 3.6v 5v 2 Po-Output Power Po-Output Power 4 VDD-Supply Voltage-V 5v 1.5 1.5 1 1 0.5 0.5 0 0 4Ω 8Ω 12Ω 16Ω 20Ω 24Ω 28Ω 32Ω 4Ω 8Ω 12Ω 16Ω 20Ω RL RL Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 8 24Ω 28Ω 32Ω ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Output Power vs VDD (RL=8Ohm) Output Power vs VDD (RL=4Ohm) Output Power vs.VDD(RL=4Ohm) Output Power vs.VDD(RL=8Ohm) 4 THD+N=1% 2 1.6 1.2 0.8 2.5 2 1.5 1 0.5 0 0 3.6 5 5.5 THD+N=1% 3 0.4 2.5 THD+N=10% 3.5 THD+N=10% 2.4 Po-Output Power Po-Output Power 2.8 2.5 6 VDD-Supply Voltage-V 5.5 6 Efficiency and Output Power (8Ohm) 5.0V Efficiency vs Po (RL=8 ohm) Efficiency vs Po(RL=8 ohm) 100 100 VDD=3.6V VDD=5V 80 Efficiency(%) Efficiency(%) 5 VDD-Supply Voltage-V Efficiency and Output Power (8Ohm) 3.6V 60 40 80 60 40 20 20 0 0 0 0.1 0.2 0.3 Po-W 0.4 0 0.5 Efficiency and Output Power (4Ohm) 3.6V 0.2 0.4 0.6 0.8 Po-W 1 1.2 1.4 Efficiency and Output Power (4Ohm) 5.0V Efficiency vs Po (RL=4 ohm) Efficiency vs Po(RL=4 ohm) 100 100 VDD=3.6V VDD=5V 80 Efficiency(%) Efficiency(%) 3.6 60 40 20 80 60 40 20 0 0 0 0.1 0.2 0.3 Po-W 0.4 0 0.5 0.2 0.4 0.6 0.8 Po-W Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 9 1 1.2 1.4 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Dissipation vs Output Power (8Ohm) Dissipation vs Output Power (4Ohm) Pd vs Po Pd vs Po 0.2 0.6 Pd(5V) Pd(5V) 0.16 0.5 Pd(3.6V) Pd(3.6V) 0.4 Pd-W Pd-W 0.12 0.08 0.3 0.2 0.04 0.1 0 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 Po-W (RL=8 ohm) 0.2 0.4 0.6 0.8 1 Po-W (RL=8 ohm) 1.2 Figure 7 THD+N & Output Power vs Temperature (VDD=3V, RL=8Ω) 100 THD+N (%) 10 1 0.1 25C 80C 85C -20C -40C 0.01 0.0001 0.001 0.01 0.1 Po - Output Power (W) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 10 1 1.4 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Figure 8 THD+N & Output Power vs Temperature (VDD=4.5V, RL=8Ω) 100 THD+N (%) 10 1 25C 0.1 80C 85C -20C -40C 0.01 0.0001 0.001 0.01 0.1 1 10 Po - Output Power (W) Figure 9 THD+N & Output Power vs Temperature (VDD=5.0V, RL=8Ω) 100 THD+N (%) 10 1 25C 80C 85C 0 -20C -40C 0 0.0001 0.001 0.01 0.1 Po - Output Power (W) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 11 1 10 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier Figure 10 FCC Class-B (Vertical) Figure 11 FCC Class-B (Horizontal) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 12 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier Figure 12 CISPR Class-B (Vertical) Figure 13 CISPR Class-B ( Horizontal) Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 13 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 APPLICATION INFORMATION Fully Differential Amplifier The LY8005 is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a differential amplifier and a common-mode amplifier. The differential amplifier ensures that the amplifier outputs a differential voltage on the output that is equal to the differential input times the gain. The common-mode feedback ensures that the common-mode voltage at the output is biased around VDD/2 regardless of the common-mode voltage at the input. The fully differential LY8005 can still be used with a single-ended input; however, the LY8005 should be used with differential inputs when in a noisy environment, like a wireless handset, to ensure maximum noise rejection. Advantages of Fully Differential Amplifiers Input-coupling capacitors not required: The fully differential amplifier allows the inputs to be biased at voltage other than mid-supply. For example, if a codec has a midsupply lower than the midsupply of the LY8005, the common-mode feedback circuit will adjust, and the LY8005 outputs will still be biased at midsupply of the LY8005. The inputs of the LY8005 can be biased from 0.5 V to VDD - 0.8 V. If the inputs are biased outside of that range, input - coupling capacitors are required. Midsupply bypass capacitor, C(BYPASS), not required: The fully differential amplifier does not require a bypass capacitor. This is because any shift in the midsupply affects both positive and negative channels equally and cancels at the differential output. Better RF-immunity: GSM handsets save power by turning on and shutting off the RF transmitter at a rate of 217 Hz. The transmitted signal is picked-up on input and output traces. The fully differential amplifier cancels the signal much better than the typical audio amplifier. Component Selection Figure 1 shows the LY8005 typical schematic with differential inputs and Figure 2 shows the LY8005 with single-ended inputs. Differential inputs should be used whenever possible because the single-ended inputs are much more susceptible to noise. Table 1. Typical Component Values Reference Description Ri Cs Ci 150KΩ 1.0uF 3.3 nF Note 1% tolerance resistors +22%,-80% (±10%) (1) Ci is only needed for single-ended input or if VICM is not between 0.5 V and VDD - 0.8 V. CI = 3.3 nF (with Ri = 150KΩ) gives a high-pass corner frequency of 321 Hz. For example fc = 1 / ( 2πRiCi ) fc = 1 / ( 2π x 150KΩ x 3.3nF) = 321.524 Hz Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 14 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Input Resistors (Ri) The input resistors (RI) set the gain of the amplifier according to equation Equation 1. 150 kΩ Pre-Amplifier Gain = ----------Ri 150 kΩ Total Gain = 2 x -------------- …………………………………………………………….(1) Ri 150 kΩ AVD = 20 x log [2 x ( ----------- )] Ri Resistor matching is very important in fully differential amplifiers. The balance of the output on the reference voltage depends on matched ratios of the resistors. CMRR, PSRR, and cancellation of the second harmonic distortion diminish if resistor mismatch occurs. Therefore, it is recommended to use 1% tolerance resistors or better to keep the performance optimized. Matching is more important than overall tolerance. Resistor arrays with 1% matching can be used with a tolerance greater than 1%. Place the input resistors very close to the LY8005 to limit noise injection on the high-impedance nodes. For optimal performance the gain should be set to 2 V/V or lower. Lower gain allows the LY8005 to operate at its best, and keeps a high voltage at the input making the inputs less susceptible to noise. For example Table 2. Typical Total Gain and AVD Values Rf (KΩ) 150 150 150 150 150 150 Ri (KΩ) 150 75 50 37.5 25 18.75 Pre AMP. Gain 1 2 3 4 6 8 Total Gain 2 4 6 8 12 16 AVD (db) 6.02 12.04 15.56 18.06 21.58 24.08 Decoupling Capacitor (CS) The LY8005 is a high-performance class-D audio amplifier that requires adequate power supply decoupling to ensure the efficiency is high and total harmonic distortion (THD) is low. For higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1 μF, placed as close as possible to the device VDD lead works best. Placing this decoupling capacitor close to the LY8005 is very important for the efficiency of the class-D amplifier, because any resistance or inductance in the trace between the device and the capacitor can cause a loss in efficiency. For filtering lower-frequency noise signals, a 10 μF or greater capacitor placed near the audio power amplifier would also help, but it is not required in most applications because of the high PSRR of this device. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 15 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Input Capacitors (Ci) The LY8005 does not require input coupling capacitors if the design uses a differential source that is biased from 0.5 V to VDD - 0.8 V (shown in Figure 1). If the input signal is not biased within the recommended common-mode input range, if needing to use the input as a high pass filter (shown in Figure 1), or if using a single-ended source (shown in Figure 2), input coupling capacitors are required. The input capacitors and input resistors form a high-pass filter with the corner frequency, fc, determined in equation Equation 2. 1 fc = ----------------………………………………………………………………(2) 2πRiCi The value of the input capacitor is important to consider as it directly affects the bass (low frequency) performance of the circuit. Speakers in wireless phones cannot usually respond well to low frequencies, so the corner frequency can be set to block low frequencies in this application. Equation Equation 3 is reconfigured to solve for the input coupling capacitance. 1 Ci = -----------------…………………………………………………………….(3) 2πRifc For example In the table 3 shows the external components. Rin in connect with Cin to create a high-pass filter. Table 3. Typical Component Values Description Note 150KΩ 1% tolerance resistors 0.22uF 80%/–20% Reference Ri Ci Ci = 1 / ( 2πRifc) Ci = 1 / ( 2π x150KΩ x4.8Hz)=0.221uF，Use 0.22uF Summing Input Signals With The LY8005 Most wireless phones or PDAs need to sum signals at the audio power amplifier or just have two signal sources that need separate gain. The LY8005 makes it easy to sum signals or use separate signal sources with different gains. Many phones now use the same speaker for the earpiece and ringer, where the wireless phone would require a much lower gain for the phone earpiece than for the ringer. PDAs and phones that have stereo headphones require summing of the right and left channels to output the stereo signal to the mono speaker. Summing Two Single-Ended Input Signals Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner frequencies (fc1 and fc2) for each input source can be set independently (see equations Equation 11 through Equation 14, and Figure 14). Resistor, RP, and capacitor, CP, are needed on the IN+ terminal to match the Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 16 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier impedance on the IN- terminal. The single-ended inputs must be driven by low impedance sources even if one of the inputs is not outputting an ac signal. 150 kΩ VO Gain 1 = -------- = 2 X -------------------…………………………………………(11) VI1 Ri1 Vo 150kΩ Gain 2 = --------- = 2 X -------------------………………………………………..(12) VI2 Ri2 1 Ci1 = -------------------…………………………………………………………...(13) 2πRi1fc1 1 Ci2 = -------------------……………………………………………………..…....(14) 2πRi2fc2 CP = Ci1 + Ci2…………………………………………………………………..(15) Ri1 x Ri2 RP = ------------------…………………………………………………………..…(16) Ri1 + Ri2 Figure 14. Application Schematic With LY8005 Summing Two Single-ended Input Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 17 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier PCB Layout All the external components must place very close to the LY8005. The input resistors need to be very close to the LY8005 input pins so noise does not couple on the high impedance nodes between the input resistors and the input amplifier of the LY8005. Then place the decoupling capacitor Cs, close to the LY8005 is important for the efficiency of the class-D amplifier. Any resistance or inductance in the trace between the device and the capacitor can cause a loss in efficiency. Making the high current traces going to VDD, GND, VO+ and VO- pins of the LY8005 should be as wide as possible to minimize trace resistance. If these traces are too thin, the LY8005's performance and output power will decrease. The input traces do not need to be wide, but do need to run side-by-side to enable common-mode noise cancellation. Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 18 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 LY8005UL Demo Board Artwork Demo Board Application Circuit Figure 17. Demo Board Application Circuit Demo Board BOM List LY8005UL V2.1 BOM List No. Description Reference Note 1 Resistor, 30KΩ R1,R2 1/16W,1% 2 Resistor, 150KΩ R3 1/16W,1% 3 Capacitor, 330pF(Option) C7,C8 80%/−20%, nonpolarized 4 Capacitor, 390pF(Option) C6 80%/−20%, nonpolarized 5 Capacitor, 0.1uF C4 80%/−20%, nonpolarized 6 Capacitor, 0.33uF C1,C2 80%/−20%, nonpolarized 7 Capacitor, 10.0uF C5 80%/−20%, 6.3 V 8 Chip Bead 1KΩ/100MHz(Option) L1,L2,L3,L4 1000Ω(1KΩ)±25%/100MHz 9 IC U1 LY8005UL, MSOP8 J1 J1, Open Æ shutdown Mode 10 1*2 Pin Header Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 19 ® LY8005 3.3 W Mono Filterless Class D Audio power Amplifier Rev. 2.3 Demo Board Artwork Top Silkscreen Top Layer Composite view Bottom Layer Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 20 ® LY8005 Rev. 2.3 3.3 W Mono Filterless Class D Audio power Amplifier PACKAGE OUTLINE DIMENSION 8 pin 118 mil MSOP Package Outline Dimension Lyontek Inc. reserves the rights to change the specifications and products without notice. 5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan TEL: 886-3-6668838 FAX: 886-3-6668836 21