SGM4890YMS

SGM4890 GENERAL DESCRIPTION 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. 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 1.1 Watt Audio Power Amplifier FEATURES • 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 PIN CONFIGURATIONS (Top View) A B C -IN VO1 +IN 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. The SGM4890 is available in CSP-9 and MSOP-8 packages. It operates over an ambient temperature range of –40℃ to +85℃. GND GND V+ Bypass VO2 SHDN 1 2 CSP-9 3 APPLICATIONS Portable Systems MP3 Players Mobile Phone PDAs GPS SHDN 1 2 3 4 8 VO2 Bypass 7 6 5 GND +IN V+ -IN VO1 MSOP-8 SG Microelectronics Co, Ltd Tel: 86/10/51798160/80 www.sg-micro.com REV. A ELECTRICAL CHARACTERISTICS : TA = 25℃ PARAMETER SYMBOL CONDITIONS MIN 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 1.2 0.4 1 V+ = +5V Output Power (8 Ω) PO f = 1 kHz, THD+N=1% V+ = +3.6V V+ = +3.0V V+ = +2.6V Total Harmonic Distortion + Noise THD+N PO = 0.4Wrms, f = 1kHz V+ = +5V f = 217Hz V+ = +3.6V V+ = +3.0V Power Supply Rejection Ratio PSRR V+ = +2.6V V+ = +5V f = 1kHz V+ = +3.6V V+ = +3.0V V+ = +2.6V V+ = +5V Wake –up Time TWU CBYPASS = 1µF V+ = +3.6V V+ = +3.0V V+ = +2.6V V+ = +5V Shut Down Time TSDT 8 Ω Load V+ = +3.6V V+ = +3.0V V+ = +2.6V 1.10 0.58 0.40 0.30 0.01 -66 -63 -63 -62 -72 -68 -66 -64 110 110 100 100 10 16 17.8 17.8 µs ms dB % W 50 SGM4890 TYP 4 6 3.7 5.7 3.5 5.5 3.3 5.3 0.01 MAX 8 10 mA UNITS Quiescent Power Supply Current IQ VIN = 0V, IO = 0A, 7 9 Shutdown Current Shutdown Voltage Input High Shutdown Voltage Input Low Output Offset Voltage ISD VSDIH VSDIL VOS VSHUTDOWN = 0V, 4.0 µA V V mV Specifications subject to changes without notice. 2 SGM4890 PACKAGE/ORDERING INFORMATION MODEL SGM4890 ORDER NUMBER SGM4890YG/TR SGM4890YMS/TR PACKAGE DESCRIPTION CSP-9 MSOP-8 PACKAGE OPTION Tape and Reel, 3000 Tape and Reel, 3000 MARKING INFORMATION 4890YG SGM4890YMS ABSOLUTE MAXIMUM RATINGS 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℃ 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. CAUTION 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. TYPICAL APPLICATION 3 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS VOUT+ or VOUT- Large Sine Signal Response Large Signal Step Response V+ = 2.6V Output Voltage(500mV/div) Output Voltage(500mV/div) V+ = 2.6V Time(10µs/div) Time(2µs/div) VOUT+ or VOUT- Large Sine Signal Response V+ = 3V Output Voltage(500mV/div) Large Signal Step Response V+ = 3V Output Voltage(500mV/div) Time(5µs/div) Time(2µs/div) VOUT+ or VOUT- Large Sine Signal Response V+ = 3.6V Output Voltage(500mV/div) Large Signal Step Response V+ = 3.6V Output Voltage(500mV/div) Time(5µs/div) Time(2µs/div) 4 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS VOUT+ or VOUT- Large Sine Signal Response V+ = 5V Output Voltage(500mV/div) Large Signal Step Response V+ = 5V Output Voltage(500mV/div) Time(5µs/div) Time(5µs/div) Small Signal Frequency Response 3 V+ = +5V,3V,2.6V VIN = -10dBm Normalized Gain(dB) 0 Quiescent Current vs.Temperature 7 6 Quiescent Current(mA) 5 4 3 2 1 V+ = 3V V+ = 2.6V V + = 5V V+ = 3.6V -3 -6 -9 0.01 0 0.1 1 Frequency(MHz) 10 -40 -20 0 20 40 Temperature(℃) 60 80 Output Offset Voltage vs.Temperature 2 V+ = 5V Output Offset Voltage(mV) Supply Current(mA) 1.6 1.2 0.8 0.4 0 -40 -20 0 20 40 Temperature(℃) 60 80 4 3 2 5 Supply Current vs.Shutdown Voltage V+ = 5V OFF 1 0 -1 0 ON 1 2 Shutdown Voltage(V) 3 5 SGM4890 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs.Shutdown Voltage 5 V+ = 3.6V 4 Supply Current(mA) 3 2 OFF 1 0 -1 0 1 2 Shutdown Voltage(V) 3 ON Supply Current(mA) 5 4 3 V+ = 3V 2 1 0 -1 0 1 2 Shutdown Voltage(V) 3 V+ = 2.6V Supply Current vs.Shutdown Voltage V + = 5V V+ = 3.6V Clipping(Dropout) Voltage vs.Supply Voltage 0.9 0.8 Dropout Voltage(V) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 Supply Voltage(V) 5 6 RL = 8Ω Bottom Power Dissipation vs.Output Power 1 Power Dissipation (W) RL = 4Ω Top RL = 4Ω Bottom RL = 8Ω Top 0.8 0.6 0.4 0.2 0 0 0.2 V+ = 5 V RL = 8 Ω f = 1kHz THD ≤ 1.0% 0.4 0.6 Output Power (W) 0.8 1 Power Dissipation vs.Output Power 0.3 Power Dissipation(W) 0.25 0.2 0.15 0.1 0.05 0 0 0.1 0.2 0.3 0.4 0.5 Output Power(W) V+ = 3V RL = 8Ω f = 1kHz THD ≤ 1.0% 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 TOP SIDE COATING 0.035±0.015 1.500 0.140 9 ×Φ0.315±0.020 3 XXXX 4890YG 2 0.5 1 C B 0.500 A A1 CORNER 0.235±0.020 Note: All linear dimensions are in millimeters. 8 1.500 SGM4890 REVISION HISTORY Location 09/2007—Preliminary Datasheet 11/2007—Data Sheet REV.A Page 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