PA3011 UTC | Alldatasheet
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UNISONIC TECHNOLOGIES CO., LTD PA301 1 CMOS IC www.unisonic.com.tw 1 of 7 Copyright © 2008 Unisonic Technologies Co., Ltd QW-R502-247.A 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 3 Ω 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. 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 Lead-free: PA3011L Halogen-free: PA3011G ORDERING INFORMATION Ordering Number Normal Lead Free Plating Halogen Free Package Packing PA3011-N24-R PA3011L-N24-R PA301 1G-N24-R HTSSOP-24 Tape Reel PA3011-N24-T PA3011L-N24-T PA3011G-N24-T HTSSOP-24 Tube
UNISONIC TECHNOLOGIES CO., LTD 2 of 7 www.unisonic.com.tw QW-R502-247 PIN CONFIGURATION PGND ROUT- PVDD RHPIN RLINEIN RIN VDD LIN LLINEIN LHPIN
24 ROUT+
14 L OUT+
13 PGND
PIN DESCRIPTION PIN # PIN NAME I/O DESCRIPTION 1,13 PGND Ground, directly co nnected to thermal pad.
12 L OUT- O negative output for left channel
3,11 PV DD Supply voltage 10 LHPIN I Left channel headphone input, selected when HP/ LINE pin is held high. 9 LLINEIN I Line input for left channel, selected when HP/ LINE pin is held low. 8 L IN I Differential input for left channel. AC ground for single-ended inputs.
7 V DD Analog V DD supply voltage
6 R IN I Differential input for right channel. AC ground for single-ended inputs. 5 RLINEIN I Line input for Right channel, selected when HP/ LINE pin is held low. 4 RHPIN I Right channel headphone input, selected when HP/ LINE pin is held high. 2 R OUT- O Negative output for right channel. 24 R OUT+ O Positive output for right channel. 15 SHUTDOW I Circuit is in shutdown mode when this pin is held low.
16 FADE I 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
17 BYPASS I Tap to voltage divider for internal midsupply bias generator
18 AGND Analog ground
19 SEMAX I This sets the maximum volume for single ended operation. The DC voltage range is 0 to VDD. 20 SEDIFF I This sets the difference between BTL volume and SE volume. The DC voltage range is 0 to VDD. 21 VOLUME I DC volume control. The DC voltage range is 0 to V DD. 2 2 HP/ LINE I MUX control input, hold high to select headphone inputs, hold low to select line inputs. 23 SE/ BTL I Hold low for BTL mode, hold high for SE mode. 14 L OUT+ O Positive output for left channel.
UNISONIC TECHNOLOGIES CO., LTD 3 of 7 www.unisonic.com.tw QW-R502-247 ABSUTE MAXIMUM RATINGS (Ta=25 )℃ PARAMETER SYMBOL RATINGS UNIT Supply Voltage, VDD, PVDD V SS -0.3V ~ 6V V Input Voltage V IN -0.3 V ~ VDD+0.3V V Junction Temperature T J -40 ~ +150 °C Operating Temperature T OPR -40 ~ +85 °C Storage Temperature Range T STG -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 CONDITIONS MIN TYP MAX UNIT DC CHARACTERISTICS (VDD=PVDD=5.5V) Supply voltage V DD 4.0 5.5 V SE/ BTL , HP/LINE, FADE 0.8×VDD High-level Input Voltage V IH SHUTDOWN 2 V SE/ BTL , HP/LINE, FADE 0.6×VDD Low-level Input Voltage V IL SHUTDOWN 0.8 V High-level Input Current (SE/ BTL , FADE , HP/ LINE , SHUTDOWN , SEDIFF,SEMAX,VOLUME) | IIH | V IN=VDD=PVDD 1 µA Low-level Input Current (SE/ BTL , FADE , HP/ LINE , SHUTDOWN , SEDIFF,SEMAX,VOLUME) | IIL | V IN=0V 1 µA SE/ BTL =0V, SHUTDOWN=2V 6.0 7.5 9.0Supply Current, No Load I DD SE/ BTL =5.5V, SHUTDOWN=2V 3.0 5 6 mA Supply Current, Shutdown Mode I DD(SD) SHUTDOWN =0V 1 20 µA Gain=0dB, SE/ BTL=0V 30 DC Differential Output Voltage V OUT(DIFF) Gain=20dB, SE/BTL=0V 50 mV AC CHARACTERISTICS(VDD=PVDD=5V, RL=3Ω, Gain=6dB) Bypass Voltage (Nominally VDD/2) V (Bypass) Measured At Pin17, No Load 2.65 2.75 2.85 V High-Level Output Voltage V OH RL=8Ω, Measured Between Output And VDD 700 mV Low-Level Output Voltage V OL RL=8Ω, Measured Between Output And GND 400 mV THD=1%, f=1kHz 2 Output Power P OUT THD=10%, f=1kHz, VDD=5.5V 3 W Total Harmonic Distortion + Noise THD+N P OUT=1W, RL=8Ω, f=20Hz~20kHz <0.4% Maximum Output Power Bandwidth B OM THD=5% >20 kHz Power Supply Rejection Ratio PSRR V DD=PVDD=4.0V~5.5V -42 -70 dB BTL -63 Supply Ripple Rejection Ratio RR f=1kHz, Gain=0dB, C(BYP)=0.4µF SE -57 dB Noise Output Voltage eN Gain=0dB, C(BYP)=0.47µF f=20Hz~20kHz BTL 36 µV RMS SHUTDOWN=2V, RL=3Ω, Supply Current, Max Power Into a 3-Ω Load IDD SE/ BTL=0V, POUT=2W
1.5 A RMS
UNISONIC TECHNOLOGIES CO., LTD 4 of 7 www.unisonic.com.tw QW-R502-247 TYPICAL APPLICATION CIRCUIT AGND SHUTDOWN VDD LOUT- LOUT+ ROUT- ROUT+ RLINEIN RHPIN RIN BYPASS SE/BTL HP/LINE LLINEIN LHPIN LIN CC VDD CC 1µFCs 100K 100K CI CS FADE PVDD PGND Power Supply Right Line Audio Source Right HP Audio Source CI CI CI CI Left Line Audio Source Left HP Audio Source CI PGND System Control SEMAX SEDIFF VOLUME In From DAC or Potendometer (DC Voltage) C(BYP)
UNISONIC TECHNOLOGIES CO., LTD 5 of 7 www.unisonic.com.tw QW-R502-247 BLOCK APPLICATION
UNISONIC TECHNOLOGIES CO., LTD 6 of 7 www.unisonic.com.tw QW-R502-247 VOLUME CONTROL TABLE BTL Mode, VDD=5V(Note 1) SE Mode V DD=5V(Note 1) VOLUME (PIN21) SE_VOLUME=VOLUME – SEDIFF or SEMAX FROM(V) TO(V) GAIN OF AMPLIFIER (TYP) FROM(V) TO(V) GAIN OF AMPLIFIER (TYP) 0.00 0.26 -85(Note 2) 0.00 0.26 -85(Note 2) 0.33 0.37 -40 0.33 0.37 -46 0.44 0.48 -38 0.44 0.48 -44 0.58 0.59 -36 0.56 0.59 -42 0.67 0.70 -34 0.67 0.70 -40 0.78 0.82 -32 0.78 0.82 -38 0.89 0.93 -30 0.89 0.93 -36 1.01 1.04 -28 1.01 1.04 -34 1.12 1.06 -26 1.12 1.16 -32 1.23 1.27 -24 1.23 1.27 -30 1.35 1.38 -22 1.35 1.38 -28 1.48 1.49 -20 1.48 1.49 -26 1.57 1.60 -18 1.57 1.60 -24 1.68 1.72 -16 1.68 1.72 -22 1.79 1.83 -14 1.79 1.83 -20 1.91 1.94 -12 1.91 1.94 -18 2.02 2.06 -10 2.02 2.06 -16 2.13 2.17 -8 2.13 2.17 -14 2.25 2.28 -6(Note 2) 2.25 2.28 -12 2.38 2.39 -4 2.36 2.39 -10 2.47 2.50 -2 2.47 2.50 -8 2.58 2.61 0 2.58 2. 61 -6(Note 2) 2.70 2.73 2 2.70 2.73 -4 2.81 2.83 4 2.81 2.83 -2 2.92 2.95 6 2.92 2.95 0(Note 2) 3.04 3.06 8 3.04 3.06 2 3.15 3.17 10 3.15 3.17 4 3.28 3.29 12 3.26 3.29 6(Note 2) 3.38 3.40 14 3.38 3.40 8 3.49 3.51 16 3.49 3.51 10 3.60 3.63 18 3.60 3.63 12 3.71 5.00 20(Note 2) 3.71 5.00 14 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.
UNISONIC TECHNOLOGIES CO., LTD 7 of 7 www.unisonic.com.tw QW-R502-247 TYPICAL CHARACTERISTICS Time (µs) Output Waveform Time (µs) Output Waveform 01 6 0 0 400 800 1200 2000 VDD=5.5V, RL=3Ω, THD=10% VRMS=2.71V VRMS=2.71V 0 1600400 800 1200 2000 VDD=5V, RL=3Ω, POUT=1W VRMS=2.83V VRMS=2.83V 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 writ ten 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.