SGM4890YMS/TR

SGM4890 1.1 Watt Audio Power Amplifier GENERAL DESCRIPTION FEATURES The SGM4890 is a 1.1-W, fully integrated, audio power amplifier. It is designed to maximize audio performance in portable applications such as mobile phone. The portable application requires audio power amplifier has minimum of external components and can operate from a single 2.5V to 5.5V power supply. SGM4890 is capable of delivering 1.1W of continuous output power with less than 1% distortion（THD + N）when it drives an 8Ω speaker from a 5.0V power supply. • Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices • 1.1W to 8-Ω BTL Load from 5V Supply at THD =1% (Typical) • Excellent PSRR: Direct Connection to the Battery • Fast Turn On Time • Unity Gain Stable • 2.5V to 5.5V Operation • Shutdown Current: 0.01µA Typical • Shutdown Pin is Compatible with 1.8V Logic • –40℃ to +85℃ Operating Temperature Range • Small Packaging The SGM4890 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the SGM4890 features an internal thermal shutdown protection mechanism. The SGM4890 does not require capacitors or bootstrap capacitors, ideally suited for mobile phone and applications where minimal power primary requirement. output coupling and therefore is other low voltage consumption is a For maximum flexibility, the SGM4890 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with the bypass capacitor). When using a 1µF bypass capacitor, it offers 110ms wake up time when V+ is equal to 5.0V. PIN CONFIGURATIONS (Top View) A -IN VO1 +IN B GND GND V+ C Bypass VO2 SHDN 2 3 The SGM4890 is available in CSP-9 and MSOP-8 packages. It operates over an ambient temperature range of –40℃ to +85℃. 1 CSP-9 APPLICATIONS Portable Systems MP3 Players Mobile Phone PDAs GPS SHDN 1 8 VO2 Bypass 2 7 GND +IN 3 6 V+ -IN 4 5 VO1 MSOP-8 SG Microelectronics Co, Ltd Tel: 86/10/51798160/80 www.sg-micro.com REV. A ELECTRICAL CHARACTERISTICS : TA = 25℃ PARAMETER SYMBOL SGM4890 CONDITIONS MIN Quiescent Power Supply Current IQ VIN = 0V, IO = 0A, Shutdown Current ISD VSHUTDOWN = 0V, Shutdown Voltage Input High VSDIH Shutdown Voltage Input Low VSDIL Output Offset Voltage VOS V+ = +5V, No Load V+ = +5V, 8 Ω Load V+ = +3.6V, No Load V+ = +3.6V, 8 Ω Load V+ = +3.0V, No Load V+ = +3.0V, 8 Ω Load V+ = +2.6V, No Load V+ = +2.6V, 8 Ω Load PO f = 1 kHz, THD+N=1% V+ = +3.6V V+ = +2.6V THD+N PO = 0.4Wrms, f = 1kHz V+ = +3.6V f = 217Hz V+ = +3.0V V+ = +2.6V PSRR V+ = +5V V+ = +3.6V f = 1kHz V+ = +3.0V V+ = +2.6V V+ = +5V Wake –up Time TWU V+ = +3.6V CBYPASS = 1µF V+ = +3.0V V+ = +2.6V V+ = +5V Shut Down Time TSDT 8 10 0.01 4.0 7 9 V+ = +3.6V 8 Ω Load V+ = +3.0V V+ = +2.6V mA µA V 0.4 V 50 mV 1.10 0.58 W 0.40 0.30 0.01 V+ = +5V Power Supply Rejection Ratio 4 6 3.7 5.7 3.5 5.5 3.3 5.3 1 V+ = +3.0V Total Harmonic Distortion + Noise MAX 1.2 V+ = +5V Output Power (8 Ω) UNITS TYP % -66 -63 -63 -62 dB -72 -68 -66 -64 110 110 ms 100 100 10 16 µs 17.8 17.8 Specifications subject to changes without notice. 2 SGM4890 PACKAGE/ORDERING INFORMATION MODEL ORDER NUMBER SGM4890 SGM4890YG/TR SGM4890YMS/TR PACKAGE DESCRIPTION CSP-9 MSOP-8 ABSOLUTE MAXIMUM RATINGS PACKAGE OPTION Tape and Reel, 3000 Tape and Reel, 3000 MARKING INFORMATION 4890YG SGM4890YMS CAUTION Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Input Voltage . . . . . . . . . . . . . . . . (–VS) - 0.3 V to (+VS) +0.3V Storage Temperature Range . . . . . . . . . . . . .–65℃ to +150℃ Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 150℃ Operating Temperature Range . . . . . . . . . . . –40℃ to +85℃ Lead Temperature Range (Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260℃ This integrated circuit can be damaged by ESD. SG Micro-electronics recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. NOTES 1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. TYPICAL APPLICATION 3 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS Large Signal Step Response V+ = 2.6V V+ = 2.6V Output Voltage(500mV/div) Output Voltage(500mV/div) VOUT+ or VOUT- Large Sine Signal Response Time(10µs/div) Time(2µs/div) Large Signal Step Response VOUT+ or VOUT- Large Sine Signal Response V+ = 3V Output Voltage(500mV/div) Output Voltage(500mV/div) V+ = 3V Time(5µs/div) Time(2µs/div) Large Signal Step Response VOUT+ or VOUT- Large Sine Signal Response V+ = 3.6V Output Voltage(500mV/div) Output Voltage(500mV/div) V+ = 3.6V Time(2µs/div) Time(5µs/div) 4 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS VOUT+ or VOUT- Large Sine Signal Response Large Signal Step Response V+ = 5V Output Voltage(500mV/div) Output Voltage(500mV/div) V+ = 5V Time(5µs/div) Time(5µs/div) Quiescent Current vs.Temperature Small Signal Frequency Response 7 3 6 Quiescent Current(mA) Normalized Gain(dB) V+ = +5V,3V,2.6V VIN = -10dBm 0 -3 -6 V+ = 5V 5 V+ = 3.6V 4 V+ = 3V 3 V+ = 2.6V 2 1 0 -9 0.01 0.1 1 Frequency(MHz) -40 10 0 20 40 Temperature(℃) 60 80 Supply Current vs.Shutdown Voltage Output Offset Voltage vs.Temperature 5 2 V+ = 5V V+ = 5V 4 1.6 Supply Current(mA) Output Offset Voltage(mV) -20 1.2 0.8 0.4 3 2 OFF ON 1 0 -1 0 -40 -20 0 20 40 Temperature(℃) 60 0 80 5 1 2 Shutdown Voltage(V) 3 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs.Shutdown Voltage Supply Current vs.Shutdown Voltage 5 5 V+ = 3.6V V+ = 5V 3 2 OFF ON 1 0 3 V+ = 3V V+ = 2.6V 2 1 0 -1 -1 0 1 2 Shutdown Voltage(V) 3 0 1 2 Shutdown Voltage(V) 3 Power Dissipation vs.Output Power Clipping(Dropout) Voltage vs.Supply Voltage 1 0.9 0.8 RL = 4Ω Top 0.7 Power Dissipation (W) Dropout Voltage(V) V+ = 3.6V 4 Supply Current(mA) Supply Current(mA) 4 RL = 4Ω Bottom 0.6 0.5 RL = 8Ω Top 0.4 0.3 0.2 RL = 8Ω Bottom 0.1 0.8 0.6 0.4 V+ = 5V RL = 8Ω f = 1kHz THD ≤ 1.0% 0.2 0 0 0 1 2 3 4 Supply Voltage(V) 5 0 6 0.2 0.4 0.6 Output Power (W) 0.8 1 Power Dissipation vs.Output Power Power Dissipation(W) 0.3 0.25 0.2 0.15 V+ = 3V RL = 8Ω f = 1kHz THD ≤ 1.0% 0.1 0.05 0 0 0.1 0.2 0.3 0.4 0.5 Output Power(W) 6 SGM4890 PACKAGE OUTLINE DIMENSIONS MSOP-8 Symbol A A1 A2 b c D e E E1 L θ Dimensions In Millimeters Dimensions In Inches Min Max Min Max 0.800 1.200 0.031 0.047 0.000 0.200 0.000 0.008 0.760 0.970 0.030 0.038 0.30 TYP 0.012 TYP 0.15 TYP 0.006 TYP 2.900 3.100 0.114 0.122 0.65 TYP 0.026 TYP 2.900 3.100 0.114 0.122 5.100 0.201 4.700 0.185 0.410 0.650 0.016 0.026 0° 6° 0° 6° 7 SGM4890 PACKAGE OUTLINE DIMENSIONS CSP-9 0.380±0.025 1.500 TOP SIDE COATING 9 ×Φ0.315±0.020 0.140 0.035±0.015 2 0.5 1 C A1 CORNER 1.500 XXXX 4890YG 3 0.235±0.020 B A 0.500 Note: All linear dimensions are in millimeters. 8 SGM4890 REVISION HISTORY Location Page 09/2007—Preliminary Datasheet 11/2007—Data Sheet REV.A SG Microelectronics Co., Ltd A2608, NO.72 North Road Xisanhuan, Haidian District, Beijing, China 100037 Tel: 86-10-51798160/80 Fax: 86-10-51798180-803 www.sg-micro.com 9 SGM4890