APA2057ARI-TRL

APA2057A 2.4W Stereo Audio Power Amplifier (with Gain Setting) & Capfree Headphone Driver Features General Description The APA2057A is a monolithic integrated circuit, which combines a stereo power amplifier and a stereo output capacitor-less headphone amplifier. The stereo power amplifier provides 19-steps gain setting for flexible application. The headphone amplifier is ground-reference output, and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’ space and component s height. Both the de-pop circuitry and the thermal shutdown protection circuitry are integrated in the APA2057A, which reduces pops and clicks noise during power on/ off and in shutdown mode. Thermal shutdown protects the chip from being destroyed by over-temperature failure. To simplify the audio system design in notebook computer applications, the APA2057A provides the internal gain setting, and these features can minimize components and PCB area. The APA2057A is available in both TSSOP-28P and TQFN5x5-28 packages. Both packages are characterized by space saving and thermal efficiency. • • • • Operating Voltage – HVDD= 3.0~3.6V – VDD= 4.5~5.5V No Output Capacitor at Headphone Amplifier Required Meeting VISTA Requirement Low Distortion AMP mode – THD+N=56dB, at VDD = 5V, RL = 4Ω, PO=1.5W – THD+N=64dB, at VDD = 5V, RL = 8Ω, PO=0.9W HP mode – THD+N=73dB, at HVDD=3.3V, RL=16Ω PO=125mW – THD+N=77dB, at HVDD=3.3V, RL=32Ω, PO=88mW – THD+N=85dB, at HVDD=3.3V, RL=10kΩ, VO=1.7Vrms Output Power at 1% THD+N – 1.9W, at VDD = 5V, AMP mode, RL = 4Ω – 1.2W, at VDD = 5V, AMP mode, RL = 8Ω at 10% THD+N –2.4W at VDD = 5V, AMP mode, RL = 4Ω –1.5W at VDD = 5V, AMP mode, RL = 8Ω Depop Circuitry Integrated Internal 19-steps Gain Setting for Flexible Application Thermal Shutdown Protection and Over Current Protection Circuitry High Supply Voltage Ripple Rejection Surface-Mount Packaging – TSSOP-28P (with enhanced thermal pad) – TQFN5x5-28 (with enhanced thermal pad) Lead Free Available (RoHS Compliant) • • • • • • • • Applications • • Note book PCs LCD monitor ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. Rev. A.1 - Aug., 2007 1 www.anpec.com.tw APA2057A Ordering and Marking Information APA2057A Lead Free Code Handling Code Temperature Range Package Code APA2057A R : APA2057A XXXXX Package Code R : TSSOP-28P QB : TQFN5x5-28 Operating Ambient Temperature Range I : -40 to 85 ° C Handling Code TR : Tape & Reel Lead Free Code L : Lead Free Device XXXXX - Date Code XXXXX - Date Code APA2057A QB : APA2057A XXXXX Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldering operations. ANPEC lead-free products meet or exceed the leadfree requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature. Pin Configurations 28 INR_H 27 INR_A 26 GND 23 AMP_EN 25 VDD 24 BEEP VDD 1 GND 2 INR_A 3 INR_H 4 INL_A 5 INL_H 6 PGND 7 LOUT+ 8 LOUT- 9 PVDD 10 CVDD 11 CP+ 12 CGND 13 CP- 14 APA2057A 28 BEEP 27 AMP_EN 26 SET 25 BIAS 24 HP_EN 23 PGND 22 ROUT+ 21 ROUT20 PVDD 19 HVDD 18 HP_L 17 HP_R CP+ 8 CGND 9 CP- 10 CVSS 11 HVSS 12 HP_R 13 HP_L 14 16 HVSS 15 CVSS INL_A 1 INL_H 2 PGND 3 LOUT+ 4 LOUT- 5 PVDD 6 CVDD 7 APA2057A 21 BIAS 20 HP_EN 19 PGND 18 ROUT+ 17 ROUT16 PVDD 15 HVDD 22 SET (TSSOP-28P) (Top view) (TQFN5x5-28) (Top view) = ThermalPad (connected the ThermalPad to GND plane for better heat dissipation) Absolute Maximum Ratings (Note 1) (Over operating free-air temperature range unless otherwise noted.) Symbol VDD HVDD, VSS VSET, VAMP_EN, VHP_EN TA TJ Parameter Supply Voltage (PVDD, CVDD, VDD) Supply Voltage (HVDD) Supply Voltage (VSS) Input Voltage Operating Ambient Temperature Range Maximum Junction Temperature Rating -0.3 to 6 +0.3 to -6 0 to VDD+0.3V -40 to 85 150 °C °C Unit V V C opyright © A NPEC Electronics Corp. Rev. A.1 - Aug., 2007 2 www.anpec.com.tw APA2057A Absolute Maximum Ratings (Cont.) Symbol TSTG TSDR PD Parameter Storage Temperature Range Maximum Lead Soldering Temperature Power Dissipation (Note 1) (Over operating free-air temperature range unless otherwise noted.) Rating -65 to +150 260, 10 seconds Internally Limited Unit °C °C W Note 1 : Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol (Note 2) Parameter Value 45 43 Unit o θJA Thermal Resistance - Junction to Ambient (Note 2) TSSOP-28P TQFN5x5-28 C/W Note 2 : 3.42 in2 printed circuit board with 2OZ trace and copper through 10 vias of 15mil diameter vias. The thermal pad on the TSSOP-28P & TQFN-28 packages with solder on the printed circuit board. Recommended Operating Conditions Min. Supply voltage, VDD Supply voltage, HVDD High level threshold voltage, VIH Low level threshold voltage, VIL Common mode input voltage, Vicm AMP_EN, HP_EN AMP_EN, HP_EN for Amplifier for Headphone Amplifier Shutdown Input Voltage (VSET) Gain Setting Fix Gain 2 4.5 4.5 3.0 2 0.8 VDD-1 HVDD-1 0.8 4.2 V V Max. 5.5 3.6 Unit V V V V V V Electrical Characteristics VDD = 5V, HVDD = 3.3V, GND = PGND = CPGND = 0V, TA= 25°C (unless otherwise noted). APA2057A Min. 4.5 3.0 Only Speaker mode, AMP_EN = HP_EN = 0V Only Headphone mode, HP_EN = AMP_EN = 5V All Enable, HP_EN=5V and AMP_EN = 0V 17.5 0.15 12 3 20 3 Typ. Max. 5.5 3.6 29 1 20 5 35 5 mA Symbol VDD HVDD IVDD IHVDD IVDD IHVDD IVDD IHVDD Parameter Supply Voltage Headphone Amplifier supply voltage VDD Supply Current HVDD Supply Current VDD Supply Current HVDD Supply Current VDD Supply Current HVDD Supply Current Test Condition Unit V V C opyright © A NPEC Electronics Corp. Rev. A.1 - Aug., 2007 3 www.anpec.com.tw APA2057A Electrical Characteristics (Cont.) VDD = 5V, HVDD = 3.3V, GND = PGND = CPGND = 0V, TA= 25°C (unless otherwise noted). Symbol ISD(HVDD) ISD(VDD) IAMP_EN IHP_EN Speaker mode THD+N =1%, Fin =1KHz RL = 4 Ω RL = 8 Ω THD+N =10%, Fin =1KHz RL = 4 Ω RL = 8 Ω RL =8Ω, Gain =10.5dB Fin =1KHz PO = 1.5W, RL =4Ω PO = 0.9W, RL =8Ω Fin =1KHz, CB=2.2µF, RL=8Ω, PO=0.92W Fin =1KHz, CB=2.2µF, RL =4Ω, PO=1.5W CB =2.2µF, RL =8Ω, Fin =120Hz PO =0.8W, RL =8Ω, A-weighted Filter Noise Output Voltage Gain =10.5dB, RL =8Ω, CB =2.2µF 0.15 0.06 80 83 70 90 80 dB dB µV (rms) 1.9 1.2 2.4 1.5 10 mV % Parameter HVDD Shutdown Current VDD Shutdown Current Input current Input current Test Condition APA2057A Min. Typ. 50 1 1 10 15 Max. 90 10 Unit µA µA µA SET = 0V AMP_EN HP_EN, PO Output Power 1.0 W 1.3 VOS THD+N Output Offset Voltage Total Harmonic Distortion plus Noise Channel Separation Power Supply Rejection Ratio X’ talk PSRR S/N Vn dB Headphone mode THD+N = 1%, Fin =1KHz RL = 1 6 Ω RL = 3 2 Ω THD+N = 10%, Fin =1KHz RL =16Ω RL =32Ω RL =10KΩ RL =32Ω Fin = 1KHz THD+N Total Harmonic Distortion plus Noise PO = 125mW, RL =16Ω PO = 88mW, RL =32Ω VO=1.7Vrms, RL=10kΩ Fin =1KHz, RL =16Ω, PO =125mW X’ talk Channel Separation Fin =1KHz, RL =32Ω, PO =88mW Fin =1KHz, RL=10KΩ, VO =1.7Vrms PSRR Power Supply Rejection Ratio CB = 2.2µF, RL=32Ω, Fin =120Hz 0.02 0.02 0.005 80 85 105 80 dB dB % THD+N=10% THD+N=1% -10 160 120 200 165 2.9 2.4 +10 Vrms mV Po Output Power 100 mW 150 Vo Vos Output Voltage Swing Output Offset Voltage C opyright © A NPEC Electronics Corp. Rev. A.1 - Aug., 2007 4 www.anpec.com.tw APA2057A Electrical Characteristics (Cont.) VDD = 5V, HVDD = 3.3V, GND = PGND = CPGND = 0V, TA= 25°C (unless otherwise noted). Symbol Headphone mode (Cont.) With A-weighted Filter S/N PO = 70mW, RL =32Ω VO =1.2Vrms, RL=10kΩ Vn Rf Charge Pump Fosc CVSS Switching frequency Charge Dump Output Voltage (CVSS) Charge pump requirement resistance No load 460 540 -0.98 VDD 9 12 620 KHz V Noise Output Voltage Input Feedback Resistance CB =2.2µF 38 95 92 30 40 42 µV (rms) kΩ dB Parameter Test Condition APA2057A Min. Typ. Max. Unit Req Beep Vbeep TRES Attenuation Att(HP_EN) Ω Beep trigger level Beep response time RL = 32Ω, VO = 1.1Vrms, Fin = 1KHz RL = 10KΩ, VO = 1.1Vrms, Fin = 1KHz RL = 8Ω, VO = 2Vrms, Fin = 1KHz RL = 4Ω, VO = 2Vrms, Fin = 1KHz RL = 10KΩ on the Headphone Mode, VO = 1.1Vrms, Fin = 1KHz RL = 8Ω on the AMP Mode, VO = 1Vrms, Fin = 1KHz AMP_EN = 0V, RL = 8Ω 3 4 VPP ms HP disable attenuation AMP disable attenuation Shutdown active 115 85 112 112 90 dB dB dB dB dB Att(AMP_EN) Att_SD(HP_EN) Att_SD(AMP_EN) Shutdown active 100 dB Headphone to Speaker Crosstalk HP_EN = 5V, RL = 16Ω, Fin = 1KHz, PO = 125mW Speaker to Headphone Crosstalk HP_EN = 5V, RL = 10KΩ X’ talk Channel Separation AMP_EN = 0V, RL = 4Ω, Fin = 1KHz, PO = 1.5W Amplifier Start up Time Tstart-up Start up time 120 msec 80 dB X’ talk Channel Separation 85 dB C opyright © A NPEC Electronics Corp. Rev. A.1 - Aug., 2007 5 www.anpec.com.tw APA2057A Gain Setting Table _AMP Mode G ain (dB) - 70 -7 -5 -3 -1 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 0.5 Input Voltage (V SET ) Low (V) 0 2.04 2.15 2.28 2.39 2 .51 2 .62 2 .74 2 .86 2 .97 3 .09 3 .21 3 .33 3.45 3.56 3.68 3.80 3.92 4.02 4.15 4.26 H igh (V) 2.00 2.12 2.24 2.35 2.47 2.58 2.70 2.81 2.92 3.04 3.15 3.27 3.39 3.51 3.62 3.73 3.85 3.96 4.07 4.17 5.00 Hysteresis (mV) SD 47 36 41 41 35 41 48 43 47 45 54 59 64 53 59 66 69 64 76 94 (VDD=5V) Recommended Voltage (V) 0 .00 2.08 2.20 2.31 2.43 2.54 2.66 2.78 2.89 3.01 3.12 3.24 3.36 3.48 3.59 3.70 3.82 3.94 4.05 4.16 5.00 Recommend Resistance’s Value for Gain Setting G ain (dB) - 70 -7 -5 -3 -1 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 0.5 R1 (1%) 10K 18K 20K 18K 16K 1 5K 1 3K 2 4K 1 3K 1 3K 1 3K 1 6K 1 3K 13K 15K 13K 13K 13K 15K 13K 10K R# (1%) 0 13K 16K 16K 15K 16K 15K 30K 18K 20K 22K 30K 27K 30K 39k 39K 43K 50K 68K 68K >90K C opyright © A NPEC Electronics Corp. Rev. A.1 - Aug., 2007 6 www.anpec.com.tw APA2057A Typical Operating Characteristics THD+N vs. Output Power 10 VDD =5V Fin=1KHz Cin=2.2µF BW