UNISONIC TECHNOLOGIES CO., LTD UPA2008 Preliminary CMOS IC 3W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL DESCRIPTION The UTC UPA2008 is a third generation 5-V class-D amplifier which provides precise DC volume control, lower supply current, lower noise floor, higher efficiency, smaller packaging, and fewer external components. Designed using a new filter-free class-D modulation technique, the UTC UPA2008 is capable of directly driving the speakers, without needing a low-pass output filter consisting of two inductors and three capacitors per channel. Eliminating this output filter saves approximately 30% in system cost and 75% in PCB area. The UTC UPA2008 improves the chip-level shutdown control, 1µA total supply current making the device ideal for battery-powered applications. It also protects the chip from being destroyed by over temperature and short current failure. To save battery power for more essential devices when battery voltage drops to low levels, undervoltage shutdown is designed in the UTC UPA2008. In applications, class-D amplifier for LCD projectors, LCD monitors, powered speakers, the UTC UPA2008 is also suitable for battery operated and space constrained systems. FEATURES * 3W per channel into 3Ω speakers (THD+N=10%) -< 0.045% THD at 1.5W, 1kHz, 3Ω load * Filter free modulation scheme operates without a large and expensive LC output filter * DC volume control with 2dB steps from -38dB to 20dB * Extremely efficient third generation 5V Class-D technology -Low supply current, 7mA -Low shutdown control, 1µA -Low noise floor, -80dBV -Maximum efficiency into 3Ω, 78% -Maximum efficiency into 8Ω, 88% -PSRR, -70dB * Operating temperature range, -40°C~85°C www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 8 QW-R107-068.a UPA2008 Preliminary ORDERING INFORMATION Ordering Number UPA2008G-N24-R CMOS IC Package HTSSOP-24 Packing Tape Reel MARKING UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC PIN CONFIGURATION LINN 1 2 24 RINN SHUTDOWN PVDDL 3 23 RINP 22 BYPASS 4 21 PVDDR LOUTP 5 20 ROUTP PGNDL 6 19 PGNDR PGNDL 7 18 PGNDR LOUTN 8 17 ROUTN 9 16 PVDDR LINP PVDDL COSC 10 15 NC ROSC 11 14 VOLUME AGND 12 13 VDD PIN DESCRIPTION PIN NO. 1 2 PIN NAME DESCRIPTION LINN LINP Negative differential audio input for left channel Positive differential audio input for left channel Places the amplifer in shutdown mode if a TTL logic low is placed on this terminal; normal operation if a TTL logic high is placed on this terminal. Power supply for left channel H-bridge Positive audio output for left channel Power ground for left channel H-bridge Negative audio output for left channel A capacitor connected to this terminal sets the oscillation frequency in conjunction with ROSC. For proper operation, connect a 220pF capacitor from COSC to ground. A resistor connected to the ROSC terminal sets the oscillation frequency in conjunction with COSC. For proper operation, connect a 120k Ω resistor from ROSC to ground. Analog ground Analog power supply DC volume control for setting the gain on the internal amplifiers. The dc voltage range is 0 to VDD No connection Power supply for right channel H-bridge Negative output for right channel Power ground for right channel H-bridge Positive output for right channel Tap to voltage divider for internal mid-supply bias generator used for internal analog reference. Negative differential audio input for right channel Positive differential audio input for right channel Connect to analog ground and the power grounds must be soldered down in all applications to properly secure device on the PCB. 3 SHUTDOWN 4, 9 5 6, 7 8 PVDDL LOUTP PGNDL LOUTN 10 COSC 11 ROSC 12 13 AGND VDD 14 VOLUME 15 16, 21 17 18, 19 20 NC PVDDR ROUTN PGNDR ROUTP 22 BYPASS 23 24 RINP RINN Thermal Pad UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC ABSOLUTE MAXIMUM RATING over operating free-air temperature range unless otherwise noted PARAMETER Supply Voltage Range SYMBOL VDD ,PVDD VI (RINN, RINP, LINN, LINP, VOLUME) TSTG Input Voltage Range RATINGS -0.3~ 6 UNIT V 0~VDD V Storage Temperature Range -65~85 °C Lead Temperature 1,6mm (1/16 inch) from Case 260 °C for 10 Seconds 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. RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Volume Terminal Voltage SYMBOL VDD MIN 4.5 0 2 High-Level Input Voltage SHUTDOWN VIH Low-Level Input Voltage SHUTDOWN VIL PWM Frequency Operating Free-Air Temperature Operating Junction Temperature TA TJ MAX 5.5 VDD UNIT V V V 200 -40 0.8 V 300 85 125 kHz °C °C ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=PVDD=5V, unless otherwise noted) PARAMETER Output Offset Voltage (Measured Differentially) Power Supply Rejection Ratio High-Level Input Current Low-Level Input Current Supply Current SYMBOL |VOS| PSRR |IIH| |IIL| IDD TEST CONDITIONS MIN VI=0V, AV=20dB, RL=8Ω TYP MAX UNIT 5 25 mV 1 1 15 dB µA µA mA VDD=PVDD=4.5V~5.5V VDD=PVDD=5.5V, VI=VDD=PVDD VDD=PVDD=5.5V, VI=0V No Filter (No Load) RL=3Ω , PO=2.5W/channel (Stereo) -70 0.05 1 μA High Side 450 600 mΩ Low Side 450 600 mΩ TYP 2.5 MAX UNIT W RMS Supply Current at Max Power IDD(max) Supply Current in Shutdown Mode IDD(SD) SHUTDOWN =0V Drain-Source On-State Resistance Rds(on) VDD=5V, IO= 500mA, TJ= 25°C TYP 7 1.8 A OPERATING CHARACTERISTICS (TA=25°C, VDD=PVDD=5V, RL=3Ω , Gain=0dB (unless otherwise noted) PARAMETER SYMBOL TEST CONDITIONS THD+N=1% f=1kHz, Output Power PO RL=3Ω , Stereo THD+N=10% operation PO=2.2W, f=20Hz~20kHz Total Harmonic Distortion Plus Noise THD+N PO=1.5W, f=1kHz Maximum Output Power Bandwidth BOM THD=5% Maximum Output at Signal-to-Noise Ratio SNR THD+N<0.5% Thermal Trip Point Thermal Hysteresis 20Hz~20kHz, Volume=0dB Integrated Noise Floor VN Inputs ac Volume=20dB Grounded UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 3 W <0.3 0.045 20 % % kHz 96 dB 150 20 42 °C °C µVrms 85 µVrms 5 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC TYPICAL DC VOLUME CONTROL TYPICAL GAIN OF AMPLIFIER VOLTAGE ON VOLUME PIN VOLTAGE ON VOLUME PIN (dB) (V) (V) (Note 1) (DECREASING GAIN) (INCREASING OR FIXED GAIN) 0-0.33 0.31-0 -38 (Note 2) 0.34-0.42 0.43-0.32 -37 0.43-0.52 0.54-0.44 -35 0.53-0.63 0.64-0.55 -33 0.64-0.75 0.75-0.65 -31 0.76-0.86 0.86-0.76 -29 0.87-0.97 0.97-0.87 -27 0.98-1.07 1.08-0.98 -25 1.08-1.18 1.19-1.09 -23 1.19-1.30 1.32-1.20 -21 1.31-1.41 1.42-1.33 -19 1.42-1.52 1.53-1.43 -17 1.53-1.63 1.63-1.54 -15 1.64-1.75 1.75-1.64 -13 1.76-1.85 1.84-1.76 -12 1.86-1.96 1.96-1.85 -10 1.97-2.07 2.09-1.97 -8 2.08-2.18 2.19-2.10 -6 2.19-2.30 2.33-2.20 -4 2.31-2.40 2.43-2.34 -2 2.41-2.52 2.49-2.44 0 (Note 2) 2.53-2.63 2.62-2.50 2 2.64-2.75 2.75-2.63 4 2.76-2.87 2.85-2.76 6 2.88-2.98 2.99-2.86 8 2.99-3.10 3.12-3.00 10 3.11-3.22 3.25-3.13 12 3.23-3.33 3.36-3.26 14 3.34-3.47 3.48-3.37 16 3.48-3.69 3.64-3.49 18 3.70-VDD VDD-3.65 20 (Note 2) Notes: 1. The typical part-to-part gain variation can be as large as ±2dB (one gain step) 2. Tested in production UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R107-068.a UPA2008 Preliminary CMOS IC TYPICAL APPLICATION CIRCUIT (Cont.) 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 8 of 8 QW-R107-068.a