APA2037QBI-TRG

APA2037 3W Stereo Fully Differential Audio Power Amplifier Features General Description The APA2037 is a stereo, fully differential Class-AB audio amplifier which can operate with supply voltage from 2.4V to 5V and is available in a TQFN5x5-20A package. The built-in feedback resistors can minimize the external component counts and save the PCB space. High PSRR and fully differential architecture increase immunity to noise and RF rectification. In addition to these features, a short startup time and small package size make the APA2037 is an ideal choice for LCD TVs and notebook PCs and Portable devices. The APA2037 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off and shutdown mode operation. Both Thermal and over-current protections are integrated to avoid the IC to be destroyed by over temperature and short-circuit. The APA2037 is capable of driving 3W at 5V into 3 Ω speaker. • • • • • • • • • Operating Voltage: 2.4V~5.5V Fully Differential Class-AB Amplifier High PSRR and Excellent RF Rectification Immunity Low Crosstalk 3W Per Channel Output Power into 3Ω Load at VDD=5V Thermal and Over-Current Protections Built-in Feedback Resistors Eliminate External Components Counts Space Saving Package – TQFN5x5-20A Lead Free and Green Devices Available (RoHS Compliant) Applications 15 RBYPASS Simplified Application Circuit RINP 16 11 LBYPASS • • • LCD TVs Notebook, PCs Portable Devices Pin Configuration 13 LINN 12 LINP 14 RSD 10 NC 9 LSD Left Channel Input LINN LINP LOUTP LOUTN Left Channel Speaker RINN 17 NC 18 RVDD 19 NC 20 TQFN5x5-20A Top View 8 NC 7 LVDD 6 LOUTN APA2037 ROUTN Right Channel Input RINP RINN ROUTP Right Channel Speaker ROUTP 1 GND 2 ROUTN 3 LOUTP 4 =Thermal Pad (connected the Thermal Pad to GND plane for better heat dissipation) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright © ANPEC Electronics Corp. Rev. A.2 - Aug., 2008 1 www.anpec.com.tw GND 5 APA2037 Ordering and Marking Information APA2037 Assembly Material Handling Code Temperature Range Package Code APA2037 QB : APA2037 XXXXX Package Code QB : TQFN5x5-20A Operating Ambient Temperature Range I : -40 to 85 ° C Handling Code TR : Tape & Reel Assembly Material L : Lead Free Device G : Halogen and Lead Free Device XXXXX - Date Code Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings Symbol VDD VIN TJ TSTG TSDR PD (Note 1) (Over operating free-air temperature range unless otherwise noted.) Parameter Supply Voltage (LVDD, RVDD to GND) Input Voltage (LINN, LINP, RINN, RINP, LSD, RSD to GND) Maximum Junction Temperature Storage Temperature Range Maximum Lead Soldering Temperature, 10 Seconds Power Dissipation Rating -0.3 to 6 -0.3 to VDD+0.3 150 -65 to +150 260 Internally Limited Unit V V ο ο ο C C C W Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol Parameter Thermal Resistance -Junction to Ambient Thermal Resistance -Junction to Case TQFN5x5-20A (Note 2) TQFN5x5-20A (Note 3) Typical Value 40 8 Unit ο ο θJA θJC C/W C/W Note 2: Please refer to “ Layout Recommendation”, the Thermal Pad on the bottom of the IC should soldered directly to the PCB’ s ThermalPad area that with several thermal vias connect to the ground plan, and the PCB is a 2-layer, 5-inch square area with 2oz copper thickness. Note 3: The case temperature is measured at the center of the Thermal Pad on the underside of the TQFN5X5-32A package. C opyright © A NPEC Electronics Corp. Rev. A.2 - Aug., 2008 2 www.anpec.com.tw APA2037 Recommended Operating Conditions Symbol VDD VIH VIL VIC Supply Voltage High Level Threshold Voltage Low Level Threshold Voltage Common Mode Input Voltage Operating Ambient Temperature Range Operating Junction Temperature Range Speaker Resistance LSD, RSD LSD, RSD Parameter Range 2.4 ~ 5.5 1.8 ~VDD 0 ~ 0.35 0.5 ~ VDD-0.5 -40 ~ 85 -40 ~ 125 3~ ο ο Unit V V V C C Ω Electrical Characteristics VDD=5V, Gnd=0V, TA= 25 C (unless otherwise noted) Symbol IDD ISD II Gain TSTART-UP RSD Start-Up Time from End of Shutdown Resistance from Shutdown to GND RL = 3Ω THD+N = 1% PO Output Power THD+N = 10% fin = 1kHz RL = 4Ω RL = 8Ω RL = 3Ω RL = 4Ω RL = 8Ω THD+N Crosstalk PSRR CMRR S/N VOS Vn Total Harmonic Distortion Pulse Noise Channel separation Power Supply Rejection Ratio Common-Mode Rejection Ratio Signal to Noise Ratio Output Offset Voltage Noise Output Voltage fin = 1kHz RL = 4Ω PO= 1.5W RL = 8Ω PO= 0.9W Parameter Supply Current Shutdown Current Input Current LSD = RSD = 0V LSD, RSD RL=4Ω Cb1=Cb2 = 0.22µF Test Conditions Min. 36kΩ Ri 90 APA2037 Typ. Max. 6 12 1 0.1 40kΩ Ri 65 100 5 44kΩ Ri 110 Unit mA µA µA V/V ms kΩ o VDD=5V, TA=25° C 1 2.4 2.1 1.3 3 2.6 1.6 0.05 0.035 105 80 60 105 5 15 % 20 dB mV µV (rms) dB W PO=130mW, RL =8Ω, fin = 1kHz Cb1 = Cb2= 0.22µF, RL = 8Ω, VRR=0.2VPP, fin = 217Hz Cb1 = Cb2= 0.22µF, RL = 8Ω, VIC=0.2VPP, fin = 217Hz With A-weighting Filter PO = 1.3W, RL = 8Ω RL = 8Ω Cb1 = Cb2= 0.22µF, With A-weighting Filter C opyright © A NPEC Electronics Corp. Rev. A.2 - Aug., 2008 3 www.anpec.com.tw APA2037 Electrical Characteristics (Cont.) VDD=5V, GND=0V, TA= 25 C (unless otherwise noted) Symbol VDD=3.6V, TA=25° C RL = 3Ω THD+N = 1% PO Output Power THD+N = 10% fin = 1kHz RL = 4Ω RL = 8Ω RL = 3Ω RL = 4Ω RL = 8Ω THD+N Crosstalk PSRR CMRR S/N VOS Vn Total Harmonic Distortion Pulse Noise Channel separation Power Supply Rejection Ratio Common-Mode Rejection Ratio Signal to Noise Ratio Output Offset Voltage Noise Output Voltage fin = 1kHz RL = 4Ω PO = 0.7W RL = 8Ω PO= 0.45W 1.2 1 0.65 1.5 1.3 0.8 0.07 0.05 105 78 60 103 5 15 % dB 20 mV µV (rms) W Parameter Test Conditions Min. APA2037 Typ. Max. Unit o PO=65mW, RL=8Ω, fin=1kHz Cb1 = Cb2= 0.22µF, RL = 8Ω, VRR=0.2VPP, fin = 217Hz Cb1 = Cb2= 0.22µF, RL = 8Ω, VIC=0.2VPP, fin = 217Hz With A-weighting Filter PO = 0.65W, RL = 8Ω RL = 8Ω Cb1 = Cb2= 0.22µF, With A-weighting Filter RL = 3Ω THD+N = 1% RL = 4Ω RL = 8Ω RL = 3Ω RL = 8Ω PO = 0.3W, RL = 4Ω fin = 1kHz PO = 0.2W, RL = 8Ω PO=30mW, RL=8Ω, fin=1kHz Cb1 = Cb2= 0.22µF, RL = 8Ω, VRR=0.2VPP, fin = 217Hz Cb1 = Cb2= 0.22µF, RL = 8Ω, VIC=0.2VPP, fin = 217Hz W ith A-weighting Filter PO = 0.3W, RL = 8Ω RL = 8Ω Cb1 = Cb2= 0.22µF, With A-weighting Filter THD+N = 10% fin = 1kHz RL = 4Ω VDD=2.4V, TA=25° C 0. 5 0.45 0.3 0.7 0.6 0.35 0.1 0.08 105 75 60 100 5 15 % 20 mV µV (rms) dB W PO Output Power THD+N Crosstalk PSRR CMRR S/N VOS Vn Total Harmonic Distortion Pulse Noise Channel Separation Power Supply Rejection Ratio Common-Mode Rejection Ratio Signal to Noise Ratio Output Offset Voltage Noise Output Voltage C opyright © A NPEC Electronics Corp. Rev. A.2 - Aug., 2008 4 www.anpec.com.tw APA2037 Pin Description PIN NO. 1 2,5 3 4 6 7 8,10,18,20 9 11 12 13 14 15 16 17 19 NAME ROUTP GND ROUTN LOUTP LOUTN LVDD NC LSD LBYPASS LINP LINN RSD RBYPASS RINP RINN RVDD I/O/P O P O O O P I P I I I P I I P FUNCTION The right channel positive output terminal of speaker amplifier. Ground connection for circuitry. The right channel negative output terminal of speaker amplifier The left channel positive output terminal of speaker amplifier. The left channel negative output terminal of speaker amplifier. Left channel supply voltage input pin. No connection. Left channel shutdown mode control signal input pin, place left channel speaker amplifier in shutdown mode when held low. Left channel bypass voltage input pin. The non-inverting input of left channel amplifier. LINP is connected to ground (Gnd node) via a capacitor for single-end (SE) input signal. The inverting input of left channel amplifier. LINN is used as audio input terminal, typically. Right channel shutdown mode control signal input pin, place left channel speaker amplifier in shutdown mode when held low. Right channel bypass voltage input pin. The non-inverting input of right channel amplifier. RINP is connected to ground (Gnd node) via a capacitor for single-end (SE) input signal. The inverting input of right channel amplifier. RINN is used as audio input terminal, typically. Right channel supply voltage input pin C opyright © A NPEC Electronics Corp. Rev. A.2 - Aug., 2008 5 www.anpec.com.tw APA2037 Typical Operating Characteristics THD+N vs. Output Power 10 RL=3Ω fin=1kHz Ci=0.22µF AV=12dB BW