NCS2211, NCV2211 Low Distortion Audio Power Amplifier with Differential Output and Shutdown Mode Product Description http://onsemi.com The NCS2211 is a high performance, low distortion Class A/B audio amplifier. It is capable of delivering 1 W of output power into an 8 W speaker bridge−tied load (BTL). The NCS2211 will operate over a wide temperature range, and it is specified for single−supply voltage operation for portable applications. It features low distortion performance, 0.2% typical THD + N @ 1 W and incorporates a shutdown/enable feature to extend battery life. The shutdown/enable feature will reduce the quiescent current to 1 mA maximum. The NCS2211 is designed to operate over the −40°C to +85°C temperature range, and is available in an 8−lead SOIC package and a 3 X 3 mm DFN8 package. The SOIC package is pin compatible with equivalent function and comparable performance to competitive devices as is the DFN8 package. The DFN8 has a low thermal resistance of only 70°C/W plus has an exposed metal pad to facilitate heat conduction to copper PCB material. Low distortion, high power, low quiescent current, and small packaging makes the NCS2211 suitable for applications including notebook and desktop computers, PDA’s, and speaker phones. MARKING DIAGRAMS 8 8 1 SOIC−8 D SUFFIX CASE 751 1 N2211 ALYWG G 1 DFN8 MN SUFFIX CASE 506BJ 1 8 N2211 ALYWG G N2211 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) Features • • • • • • • • • • • • Differential Output 1.0 W into an 8 W Speaker 1.5 W into a 4 W Speaker Single Supply Operation: 2.7 V to 5.5 V THD+N: 0.2% @ 1 W Output Low Quiescent Current: 20 mA Max Shutdown Current < 1.0 mA Excellent Power Supply Rejection Two Package Options: SOIC−8 Package and DFN8 Pin Compatible with Competitive Devices NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant PIN ASSIGNMENT PIN NAME DESCRIPTION 1 Enable Enable (LOW)/Shutdown (HIGH) 2 Bias Bias Output at (VCC−VEE)/2; Bypass with Capacitor to Reduce Noise 3 IN+ Non−Inverting Input 4 IN− Inverting Input 5 OUT+ 6 VCC Positive Supply (Bypass with 10 mF in parallel with 0.1 mF) 7 VEE Negative Supply (Connect to GND for Single−Supply Operation) 8 OUT− Output+ Output− Applications • • • • • ORDERING INFORMATION Desktop Computers Notebook Computers PDA’s Speaker Phones Games © Semiconductor Components Industries, LLC, 2014 May, 2014 − Rev. 3 See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. 1 Publication Order Number: NCS2211/D NCS2211, NCV2211 PIN CONNECTIONS for SOIC−8 and DFN8 Enable 1 8 OUT− Bias 2 7 VEE IN+ 3 6 VCC IN− 4 5 OUT+ (Top View) VCC 6 R2 R C1 R1 4 − + (−) Input 5 3 R Bias Filtering R Output (+) (+) Input RL − + 8 Output (−) 2 R C2 1 Enable 7 VEE Figure 1. Block Diagram Enable (Note 1) High Low Shutdown Enabled 1. Enable (pin 1) must be actively driven for proper operation and cannot be left floating. See ENABLE/SHUTDOWN CONTROL in the specification table for proper logic threshold levels. MAXIMUM RATINGS Parameter Symbol Rating Unit VCC 5.5 Vdc Output Current IO 500 mA Maximum Junction Temperature (Note 2) TJ 150 °C Operating Ambient Temperature TA −40 to +85 °C Storage Temperature Range Tstg −60 to +150 °C Power Dissipation PD (See Graph) mW Thermal Resistance, Junction−to−Air − SOIC−8 Thermal Resistance, Junction−to−Air − DFN8 (Note 4) qJA 117 70 °C/W Power Supply Voltages Moisture Sensitivity (Note 3) Level 1 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 2. Power dissipation must be considered to ensure maximum junction temperature (TJ) is not exceeded. 3. For additional information, see Application Note AND8003/D 4. As mounted on an 80x80x1.5 mm FR4 PCB with 650 mm2 and 2 oz (0.034 mm) thick copper heat spreader. Following JEDEC JESD/EIA 51.1, 51.2, 51.3 test guidelines. http://onsemi.com 2 NCS2211, NCV2211 DC ELECTRICAL CHARACTERISTICS (VCC = +5 V, AVD = 2, RL = 8 W, C2 = 0.1 mF, TA = 25°C, unless otherwise specified) Symbol Characteristics Conditions Min Typ Max Unit POWER SUPPLY VCC Operating Voltage Range 2.7 IS, ON Power Supply Current − Enabled VCC = 2.7 V to 5.5 V TA = −40°C to +85°C (Note 5) IS, OFF Power Supply Current − Shutdown VCC = 2.7 V to 5.5 V PSRR Power Supply Rejection Ratio VCC = 2.7 V to 5.5 V TA = −40°C to +85°C V 5.5 20 mA mA 1.0 dB 75 ENABLE/SHUTDOWN CONTROL VIH Enable Input High Device Shutdown VCC = 2.7 V to 5.5 V 90% X VCC VCC VIL Enable Input Low Device Enabled VCC = 2.7 V to 5.5 V GND 10% x VCC V V OUTPUT CHARACTERISTICS VOH Output High Voltage From Either Output to GND RL = 8 W VCC − 0.400 VOL Output Low Voltage From Either Output to GND RL = 8 W 0.400 Vout −off IO Differential Output Offset Voltage V V VCC = 2.7 V to 5.5 V (Note 5) TA = −40°C to +85°C Output Current Output to Output $50 350 mV mA AC ELECTRICAL CHARACTERISTICS (VCC = +5 V, AVD = 2, RL = 8 W, C2 = 0.1 mF, TA = 25°C, unless otherwise specified) Symbol Characteristics Conditions Min Typ Max Unit FREQUENCY DOMAIN PERFORMANCE GBW Gain Bandwidth Product 12 MHz AVD = +2, RL = 8 W, VCC = 5 V 80 ° VCC = 5 V, f = 1 kHz, P = 1.0 W into 8 W VCC = 5 V, f = 1 kHz, P = 0.5 W into 8 W VCC = 3.3 V, f = 1 kHz, P = 0.35 W into 8 W VCC = 2.7 V, f = 1 kHz, P = 0.25 W into 8 W 0.2 0.15 0.1 0.1 % Phase Margin THD+N Total Harmonic Distortion TIME DOMAIN RESPONSE tON Turn on delay VCC = 5 V 1 ms tOFF Turn off delay VCC = 5 V 4 ms 5. Guaranteed by design and/or characterization. http://onsemi.com 3 NCS2211, NCV2211 TYPICAL PERFORMANCE CHARACTERISTICS 1 TA = 25°C VCC = 5.0 V AVD = 2 (BTL) RL = 8 W TA = 25°C VCC = 5.0 V AVD = 2 (BTL) RL = 8 W THD + N (%) THD + N (%) 1 C2 = 0.1 mF 0.1 C2 = 1.0 mF 0.01 C2 = 0.1 mF 0.1 C2 = 1.0 mF 0.01 20 100 1k 10 k 20 FREQUENCY (Hz) Figure 2. THD + N vs. Frequency (PL = 500 mW) Figure 3. THD + N vs. Frequency (PL = 1 W) 10 k 10 TA = 25°C VCC = 5.0 V AVD = 10 (BTL) RL = 8 W THD + N (%) TA = 25°C VCC = 5.0 V AVD = 10 (BTL) RL = 8 W THD + N (%) 1k FREQUENCY (Hz) 10 1 100 C2 = 0.1 mF C2 = 0.1 mF 1 C2 = 1.0 mF 0.1 C2 = 1.0 mF 0.1 20 100 1k 10 k 20 1k FREQUENCY (Hz) FREQUENCY (Hz) Figure 4. THD + N vs. Frequency (PL = 500 mW) Figure 5. THD + N vs. Frequency (PL = 1 W) 10 10 k 10 TA = 25°C VCC = 5.0 V AVD = 20 (BTL) RL = 8 W C2 = 0.1 mF THD + N (%) THD + N (%) 100 C2 = 0.1 mF 1 TA = 25°C VCC = 5.0 V AVD = 20 (BTL) RL = 8 W 1 C2 = 1.0 mF C2 = 1.0 mF 0.1 0.1 20 100 1k 10 k 20 100 1k FREQUENCY (Hz) FREQUENCY (Hz) Figure 6. THD + N vs. Frequency (PL = 500 mW) Figure 7. THD + N vs. Frequency (PL = 1 W) http://onsemi.com 4 10 k NCS2211, NCV2211 TYPICAL PERFORMANCE CHARACTERISTICS 1 TA = 25°C VCC = 3.3 V AVD = 2 (BTL) RL = 8 W TA = 25°C VCC = 2.7 V AVD = 2 (BTL) RL = 8 W THD + N (%) THD + N (%) 1 C2 = 0.1 mF 0.1 C2 = 0.1 mF 0.1 C2 = 1.0 mF C2 = 1.0 mF 0.01 0.01 20 100 1k 10 k 20 FREQUENCY (Hz) Figure 8. THD + N vs. Frequency (PL = 350 mW) Figure 9. THD + N vs. Frequency (PL = 250 mW) THD + N (%) THD + N (%) C2 = 0.1 mF TA = 25°C VCC = 2.7 V AVD = 10 (BTL) RL = 8 W 1 C2 = 0.1 mF 0.1 C2 = 1.0 mF C2 = 1.0 mF 0.01 0.01 20 100 1k 10 k 20 100 1k FREQUENCY (Hz) FREQUENCY (Hz) Figure 10. THD + N vs. Frequency (PL = 350 mW) Figure 11. THD + N vs. Frequency (PL = 250 mW) 10 10 k 10 C2 = 0.1 mF TA = 25°C VCC = 3.3 V AVD = 20 (BTL) RL = 8 W C2 = 0.1 mF 1 THD + N (%) THD + N (%) 10 k 10 TA = 25°C VCC = 3.3 V AVD = 10 (BTL) RL = 8 W 0.1 0.1 1k FREQUENCY (Hz) 10 1 100 C2 = 1.0 mF 0.1 1 TA = 25°C VCC = 2.7 V AVD = 20 (BTL) RL = 8 W 0.1 C2 = 1.0 mF 0.01 20 100 1k 10 k 20 100 1k FREQUENCY (Hz) FREQUENCY (Hz) Figure 12. THD + N vs. Frequency (PL = 350 mW) Figure 13. THD + N vs. Frequency (PL = 250 mW) http://onsemi.com 5 10 k NCS2211, NCV2211 TYPICAL PERFORMANCE CHARACTERISTICS 1.50 THD + N (%) 10 TA = 25°C C2 = 0.1 mF AVD = 2 (BTL) RL = 8 W STEADY STATE POWER (W) 100 VCC = 2.7 V VCC = 5.0 V VCC = 3.3 V 1 0.1 0.0001 0.001 0.01 0.1 1 8 Lead DFN − 150 mm2 1.00 SOIC−8 − 650 mm2 0.75 0.50 8 Lead DFN − 50 mm2 0.25 SOIC−8 − 150 mm2 25 10 75 100 125 150 Figure 14. THD + N vs. POUTPUT (Frequency = 20 Hz) Figure 15. SOA Curve with PCB Copper Thickness 2 oz and Various Areas 2.0 TA = 25°C C2 = 0.1 mF AVD = 2 (BTL) RL = 8 W 1.8 VCC = 2.7 V 1.6 VCC = 5.0 V 1.4 Pout (W) VCC = 5.0 V VCC = 3.3 V 1.2 1.0 0.8 0.6 0.1 0.4 VCC = 3.3 V 0.2 0.01 VCC = 2.7 V 0 0.0001 0.001 0.01 0.1 1 10 4 8 12 16 20 24 28 32 36 40 POUTPUT (W) LOAD RESISTANCE (W) Figure 16. THD + N vs. POUTPUT (Frequency = 1 kHz) Figure 17. Pout vs. Load Resistance TA = 25°C C2 = 0.1 mF AVD = 2 (BTL) RL = 8 W INTERNAL POWER DISSIPATION (W) 100 THD + N (%) 50 T−AMBIENT (°C) 1 10 SOIC−8 − 50 mm2 POUTPUT (W) 100 THD + N (%) 1.25 0 0.01 10 8 Lead DFN − 650 mm2 VCC = 2.7 V VCC = 5.0 V VCC = 3.3 V 1 0.1 0.01 0.0001 0.001 0.01 0.1 1 VCC = 5 V 1.2 RL = 4 W 1.0 0.8 0.6 RL = 8 W 0.4 0.2 0 0.5 1.0 1.5 POUTPUT (W) OUTPUT POWER (W) Figure 18. THD + N vs. POUTPUT (Frequency = 20 kHz) Figure 19. Power Dissipation vs. Output Power http://onsemi.com 6 48 1.4 0 10 44 2.0 NCS2211, NCV2211 TYPICAL PERFORMANCE CHARACTERISTICS Channel 1: Enable Logic and OUT+ and OUT− Channel 2: Differential Output Time Base: 1 mSec per Division Figure 20. Turn−on Time Channel 1: SHUTDOWN Logic and OUT+ and OUT− Channel 2: Differential Output Time Base: 5 mSec per Division Figure 21. Turn−off Time 80 135 60 90 40 45 20 0 GAIN (dB) 180 −45 0 −20 10 100 1k 10 k 100 k 1M 10 M −90 100 M FREQUENCY (Hz) Figure 22. Gain and Phase Shift vs. Frequency http://onsemi.com 7 PHASE SHIFT (degrees) 100 NCS2211, NCV2211 TYPICAL PERFORMANCE CHARACTERISTICS +0 VCC = 5 V RL = 8 W Rf = Rg = 20 kW Avd = 1 Cbypass = 10 mF ⎢⎢ 0.1 mF C2 = 0.1 mF Ripple = 200 mVp−p −10 −20 −30 −40 (dB) −50 −60 −70 −80 −90 −100 −110 −120 10 100 1k FREQUENCY OF POWER−SUPPLY RIPPLE (Hz) Figure 23. Power−Supply Rejection http://onsemi.com 8 10 k NCS2211, NCV2211 APPLICATIONS INFORMATION The NCS2211 is unity gain stable and therefore does not require any compensation, but a proper power−supply bypass is required as shown in Figure 24. Performance will be enhanced by adding a filter capacitor (C2) to the mid−supply node (pin 2). See Typical Performance Characteristics for details. It is preferable to AC couple the input to avoid a large DC output offset. Both outputs can be driven to within 400 mV of either supply rail with an 8 W load. Typical Application of the Device: +5 V VCC R1 C1 20k (−) Input 0.1 mF 6 C3 10 mF⎟⎟ 0.1 mF R2 20k 4 − + 5 Output (+) 3 2 VPP RL (+) Input Bias Filtering − + 8 Output (−) 2 C2 0.1 mF 7 1 Enable VEE Figure 24. THERMAL CONSIDERATIONS GAIN Care must be taken to not exceed the maximum junction temperature of the device (150°C). Figure 15 shows the tradeoff between output power and junction temperature for different areas of exposed PCB copper (2 oz). If the maximum power is exceeded momentarily, normal circuit operation will be restored as soon as the die temperature is reduced. Leaving the device in an “overheated” condition for an extended period can result in device burnout. To ensure proper operation, it is important to observe the SOA curves. Since the output is differential, the gain from input to the speaker is: AVD = 2 x R2/R1. For low level input signals, THD will be optimized by pre−amplifying the signal and running the NCS2211 at gain AVD = 2 and C2=1 mF. BIAS FILTERING Even though the NCS2211 will operate nominally with no filter capacitor on pin 2, THD performance will be improved dramatically with a filter capacitor installed (see Typical Performance Characteristics). In addition a C2 filter capacitor at pin 2 will suppress start−up popping noise. To insure optimal suppression the time constant of the bias filtering needs to be greater than the time constant of the input capacitive coupling circuit, that is C2 x 25 k > C1 x R1. ORDERING INFORMATION Device NCS2211DR2G NCV2211DR2G* NCS2211MNTXG Package Shipping† SOIC−8 (Pb−Free) 2500 / Tape & Reel DFN−8 (Pb−Free) 3000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. http://onsemi.com 9 NCS2211, NCV2211 PACKAGE DIMENSIONS DFN8 3x3, 0.5P CASE 506BJ ISSUE O PIN 1 REFERENCE 2X 0.10 C 2X NOTES: 1. DIMENSIONS AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.15 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. L L1 ÇÇÇ ÇÇÇ ÇÇÇ 0.10 C EDGE OF PACKAGE A B D DETAIL A E OPTIONAL CONSTRUCTION DIM A A1 A3 b D D2 E E2 e K L L1 L TOP VIEW DETAIL A OPTIONAL CONSTRUCTION DETAIL B 0.05 C A 8X 0.05 C (A3) NOTE 4 SIDE VIEW A1 D2 8X L 8X K 1 DETAIL A C SEATING PLANE EXPOSED Cu 4 5 e 8X SOLDERMASK DEFINED MOUNTING FOOTPRINT ÉÉ ÉÉ 1.85 MOLD CMPD 8X 0.35 DETAIL B E2 8 MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 0.18 0.30 3.00 BSC 1.64 1.84 3.00 BSC 1.35 1.55 0.50 BSC 0.20 −−− 0.30 0.50 0.00 0.03 OPTIONAL CONSTRUCTION 3.30 1.55 0.63 0.50 PITCH b 0.10 C A B BOTTOM VIEW 0.05 C NOTE 3 8X DIMENSION: MILLIMETERS http://onsemi.com 10 NCS2211, NCV2211 PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE AK NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. 751−01 THRU 751−06 ARE OBSOLETE. NEW STANDARD IS 751−07. −X− A 8 5 S B 0.25 (0.010) Y M M 1 4 K −Y− G C N DIM A B C D G H J K M N S X 45 _ SEATING PLANE −Z− 0.10 (0.004) H M D 0.25 (0.010) M Z Y S X J S MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0_ 8_ 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0 _ 8 _ 0.010 0.020 0.228 0.244 SOLDERING FOOTPRINT* 1.52 0.060 7.0 0.275 4.0 0.155 0.6 0.024 1.270 0.050 SCALE 6:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 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