UNISONIC TECHNOLOGIES CO., LTD PA301 1 CMOS IC 3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL DESCRIPTION As a stereo audio speaker which is operating on a single 5.5V supply, the UTC PA3011 is capable of delivering 3W of output power per channel into 3Ω loads with less than 10% THD+N. The speaker volume level is adjusted by applying a dc voltage to the VOLUME terminal. When a dc voltage is applied, to avoid an unexpected high volume level through the headphones, a third terminal, SEMAX, limits the headphone volume level. And also a fade mode ramps the volume up and down to ensure a smooth transition between active and shutdown modes,. The UTC PA3011 can be applicatated in notebook, LCD monitors and pocket PC. Lead-free: PA3011L Halogen-free: PA3011G FEATURES * DC volume control with 2-dB steps :-40 dB ~ 20 dB * Fade mode * Maximum volume setting for SE mode * 3 W into 3Ω load * MUX stereo input ORDERING INFORMATION Normal PA3011-N24-R PA3011-N24-T Ordering Number Lead Free Plating PA3011L-N24-R PA3011L-N24-T Halogen Free PA3011G-N24-R PA3011G-N24-T www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd Package Packing HTSSOP-24 HTSSOP-24 Tape Reel Tube 1 of 7 QW-R502-247.A PA3011 CMOS IC PIN CONFIGURATION PGND ROUTPVDD RHPIN RLINEIN RIN VDD LIN LLINEIN LHPIN PVDD LOUT- 1 2 3 4 5 6 7 8 9 10 11 12 PA3427 24 23 22 21 20 19 18 17 16 15 14 13 ROUT+ SE/BTL HP/LINE VOLUME SEDIFF SEMAX AGND BYPASS FADE SHUTDOWN LOUT+ PGND PIN DESCRIPTION PIN # 1,13 12 3,11 10 9 8 7 6 5 4 2 24 15 PIN NAME PGND LOUTPVDD LHPIN LLINEIN LIN VDD RIN RLINEIN RHPIN ROUTROUT+ SHUTDOW I/O 16 FADE I 17 18 BYPASS AGND I 19 SEMAX I 20 SEDIFF I 21 VOLUME I 22 HP/ LINE I 23 14 SE/ BTL I O LOUT+ O I I I I I I O O I DESCRIPTION Ground, directly connected to thermal pad. negative output for left channel Supply voltage Left channel headphone input, selected when HP/ LINE pin is held high. Line input for left channel, selected when HP/ LINE pin is held low. Differential input for left channel. AC ground for single-ended inputs. Analog VDD supply voltage Differential input for right channel. AC ground for single-ended inputs. Line input for Right channel, selected when HP/ LINE pin is held low. Right channel headphone input, selected when HP/ LINE pin is held high. Negative output for right channel. Positive output for right channel. Circuit is in shutdown mode when this pin is held low. If a logic low is placed on this terminal places the amplifier in fade mode; if a logic high is placed on this terminal normal operation Tap to voltage divider for internal midsupply bias generator Analog ground This sets the maximum volume for single ended operation. The DC voltage range is 0 to VDD. This sets the difference between BTL volume and SE volume. The DC voltage range is 0 to VDD. DC volume control. The DC voltage range is 0 to VDD. MUX control input, hold high to select headphone inputs, hold low to select line inputs. Hold low for BTL mode, hold high for SE mode. Positive output for left channel. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-247 PA3011 CMOS IC ABSUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER SYMBOL RATINGS UNIT Supply Voltage, VDD, PVDD VSS -0.3V ~ 6V V Input Voltage VIN -0.3 V ~ VDD+0.3V V Junction Temperature TJ -40 ~ +150 °C Operating Temperature TOPR -40 ~ +85 °C Storage Temperature Range TSTG -65 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified) PARAMETER SYMBOL DC CHARACTERISTICS (VDD=PVDD=5.5V) Supply voltage VDD High-level Input Voltage VIH Low-level Input Voltage VIL High-level Input Current (SE/ BTL , FADE , HP/ LINE , SHUTDOWN , SEDIFF,SEMAX,VOLUME) Low-level Input Current (SE/ BTL , FADE , HP/ LINE , SHUTDOWN , SEDIFF,SEMAX,VOLUME) CONDITIONS MIN 4.0 SE/ BTL , HP/LINE, FADE SHUTDOWN SE/ BTL , HP/LINE, FADE SHUTDOWN 5.5 V V 0.6×VDD 0.8 V | IIH | VIN=VDD=PVDD 1 µA | IIL | VIN=0V 1 µA Bypass Voltage (Nominally VDD/2) 2.65 IDD V(Bypass) High-Level Output Voltage VOH Low-Level Output Voltage VOL Output Power POUT THD+N BOM PSRR Supply Ripple Rejection Ratio RR Noise Output Voltage eN Supply Current, Max Power Into a 3-Ω Load IDD Measured At Pin17, No Load RL=8Ω, Measured Between Output And VDD RL=8Ω, Measured Between Output And GND THD=1%, f=1kHz THD=10%, f=1kHz, VDD=5.5V POUT=1W, RL=8Ω, f=20Hz~20kHz THD=5% VDD=PVDD=4.0V~5.5V f=1kHz, Gain=0dB, BTL C(BYP)=0.4µF SE Gain=0dB, C(BYP)=0.47µF BTL f=20Hz~20kHz SHUTDOWN=2V, RL=3Ω, SE/ BTL=0V, POUT=2W UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw UNIT 2 6.0 3.0 Total Harmonic Distortion + Noise Maximum Output Power Bandwidth Power Supply Rejection Ratio MAX 0.8×VDD SE/ BTL =0V, SHUTDOWN=2V SE/ BTL =5.5V, SHUTDOWN=2V SHUTDOWN =0V Supply Current, Shutdown Mode IDD(SD) Gain=0dB, SE/ BTL=0V DC Differential Output Voltage VOUT(DIFF) Gain=20dB, SE/ BTL=0V AC CHARACTERISTICS(VDD=PVDD=5V, RL=3Ω, Gain=6dB) Supply Current, No Load TYP -42 7.5 5 1 2.75 2 3 <0.4% >20 -70 -63 -57 9.0 6 20 30 50 mA µA mV 2.85 V 700 mV 400 mV W kHz dB dB 36 µVRMS 1.5 ARMS 3 of 7 QW-R502-247 PA3011 CMOS IC TYPICAL APPLICATION CIRCUIT PGND FADE CS PVDD Power Supply CI BYPASS C(BYP) RIN ROUT+ ROUTCI VDD RLINEIN Right Line Audio Source CC RHPIN Right HP Audio Source VDD 1K CI 100K SE/BTL SHUTDOWN System Control HP/LINE 100K Cs PGND 1µF AGND 1K CC CI LLINEIN Left Line Audio Source LHPIN Left HP Audio Source LOUT+ CI LOUTVOLUME CI LIN SEDIFF SEMAX UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw In From DAC or Potendometer (DC Voltage) 4 of 7 QW-R502-247 PA3011 CMOS IC BLOCK APPLICATION UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R502-247 PA3011 CMOS IC VOLUME CONTROL TABLE BTL Mode, VDD=5V(Note 1) SE Mode VDD=5V(Note 1) SE_VOLUME=VOLUME – SEDIFF GAIN OF or SEMAX AMPLIFIER (TYP) FROM(V) TO(V) FROM(V) TO(V) 0.00 0.26 -85(Note 2) 0.00 0.26 0.33 0.37 -40 0.33 0.37 0.44 0.48 -38 0.44 0.48 0.58 0.59 -36 0.56 0.59 0.67 0.70 -34 0.67 0.70 0.78 0.82 -32 0.78 0.82 0.89 0.93 -30 0.89 0.93 1.01 1.04 -28 1.01 1.04 1.12 1.06 -26 1.12 1.16 1.23 1.27 -24 1.23 1.27 1.35 1.38 -22 1.35 1.38 1.48 1.49 -20 1.48 1.49 1.57 1.60 -18 1.57 1.60 1.68 1.72 -16 1.68 1.72 1.79 1.83 -14 1.79 1.83 1.91 1.94 -12 1.91 1.94 2.02 2.06 -10 2.02 2.06 2.13 2.17 -8 2.13 2.17 2.25 2.28 -6(Note 2) 2.25 2.28 2.38 2.39 -4 2.36 2.39 2.47 2.50 -2 2.47 2.50 2.58 2.61 0 2.58 2.61 2.70 2.73 2 2.70 2.73 2.81 2.83 4 2.81 2.83 2.92 2.95 6 2.92 2.95 3.04 3.06 8 3.04 3.06 3.15 3.17 10 3.15 3.17 3.28 3.29 12 3.26 3.29 3.38 3.40 14 3.38 3.40 3.49 3.51 16 3.49 3.51 3.60 3.63 18 3.60 3.63 3.71 5.00 20(Note 2) 3.71 5.00 Note: 1. For other values of VDD, scale the voltage values in the table by a factor of VDD/5. 2. Tested in production. Remaining gain steps are specified by design. VOLUME (PIN21) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GAIN OF AMPLIFIER (TYP) -85(Note 2) -46 -44 -42 -40 -38 -36 -34 -32 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6(Note 2) -4 -2 0(Note 2) 2 4 6(Note 2) 8 10 12 14 6 of 7 QW-R502-247 PA3011 CMOS IC TYPICAL CHARACTERISTICS Output Waveform Output Waveform 5 4 2 VRMS=2.83V VRMS=2.71V 0 0 -2 -4 VDD=5.5V, RL=3Ω, THD=10% 4 -5 VDD=5V, RL=3Ω, POUT=1W 5 2 VRMS=2.83V 0 0 -2 VRMS=2.71V -5 -4 0 400 800 1200 1600 2000 Time (µs) 0 400 800 1200 1600 2000 Time (µs) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R502-247