NJU8759 Analog Signal Input Monaural Filter Less 3.0W Class-D Amplifier GENERAL DESCRIPTION The NJU8759 is an analog signal input monaural filterless class-D power amplifier. Operating voltage is 1.8V to 5.5V. The NJU8759 is capable of driving 3W at 5V into 4ohms without external LC low-pass filters. The NJU8759 incorporates BTL amplifier, which eliminate AC coupling capacitors. The NJU8759 features high power-efficiency by class-D operation, and is suited for security equipment, portable set with speaker, PC, etc. FEATURES Operating Voltage Package NJU8759WLC1 +1.8 to +5.5 V(3.6<=RL ) +2.0 to +5.5 V(3.4<=RL<3.6) 3.0 W (5 V, 4 ) Output power No output filters Built-in Pop noise reduction(Turn on/Turn off) Built-in Short Protector, Thermal Shut Down Function, Under Voltage Lock Out Function CMOS Technology Package Outline WCSP9(1.45mmX1.45mm) Block Diagram VDD UVLO VDDO OSC TSD INP OUTP PWM INN STBYB OUTN OCP CTRL_LGC VSS NJU8759_Ver1.1E VSSO -1- NJU8759 PIN DESCRIPTION Top view Bottom view No. SYMBOL FUNCTION A1 A2 A3 B1 B2 B3 C1 C2 C3 INP VSS OUTN VDD VDDO VSSO INN STBYB OUTP Positive input Analog GND Negative output Power supply Output power supply Power GND Negative input Standby control Positive output ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER SYMBOL Supply Voltage V + PD Power Dissipation PD ja2 Thermal Resistance ja4 Input Voltage Operating Temperature1 (3.6<=RL) Operating Temperature2 (3.4<=RL<3.6) Storage Temperature Load Resistance *1) RATING UNIT 7.0 V Mounted on two-layer board Mounted on four-layer board Mounted on two-layer board Mounted on four-layer board 1) + 640* mW 1200 *1) mW 156.6 *1) C/W 83.4*1) C/W VIMAX 0 to V V Topr1 -40 to +85 C Topr2 -40 to +80 C Tstg -40 to +125 C >=3.4 Mounted on 2-layer/ 4-layer board based on EIA/JEDEC. Applying a thermal via hole mounted on 4-layer board. -2- NJU8759_Ver1.1E NJU8759 ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS (Ta=25C, V+=3.6V) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT 1.8 3.6 5.5 V 2.0 3.6 5.5 V + Supply Voltage1 V VDD=VDDO=V VSS=VSSO=GND +1 (3.6<=RL) + Supply Voltage2 V VDD=VDDO=V VSS=VSSO=GND +2 (3.4<=RL<3.6) Operating Current (Standby) IST - - 1.0 A Operating Current IQ - 2.7 - mA UVLO Detect Voltage VDDDET 1.1 1.4 1.7 V UVLO Hysteresis Voltage VDDHYS - 0.05 - V VIH 1.5 - VDD V VIL 0 - 0.3 V Digital Input Voltage Pull Down Resistance RDWN STBYB Terminal - 100 - k Input Impedance RIN INP, INN Terminal - 30 - k Frequency FOSC 100 250 395 kHz Turn On Time TON 10 16 40 ms Turn Off Time TOFF 10 16 40 ms Voltage Gain AV 17.5 18 18.5 dB Output OFF Set Voltage Turn ON/Turn OFF VOS -20 - 20 mV MIN TYP MAX UNIT - 1.7 - W - 3.0 - W V =5.0V, THD+N=10% RL=8+33uH - 93 - % - 0.05 - % AC CHARACTERISTICS Ta=25C, V+=3.6V, BW=20Hz-20kHz, RL=8, f=1kHz PARAMETER SYMBOL CONDITION Output Power 1 PO8 V =5.0V, THD+N=10% Output Power 2 PO4 V =5.0V, THD+N=10%, RL=4 Output Power Efficiency THD+N1 THD+N Po=0.5W THD+N2 THD+N V =5.0V, PO=1.0 W - 0.035 - % Power Supply Rejection Ratio PSRR fin=217Hz,ripple=200mVp-p - -55 - dB Common Signal Rejection Ratio CMRR fin=217Hz,Vinc=1Vp-p - -55 - dB Output Noise Voltage VNO A-weighting - 62 - V + + + NJU8759_Ver1.1E + -3- NJU8759 Turn on/Turn off Sequence STBYB Turn-on Active Turn-off OUTP/OUTN TON TOFF When STBYB is set to "H" in the TOFF, it shifts to Active mode immediately. Test system of the output THD+N NJU8759 AUX-0025 Evaluation Board LPF Filters 20kHz(AES17) THD METER Audio Analyzer Application Circuit V+ C3= 10F C4= 0.1F VDD UVLO VDDO OSC TSD INP OUTP C1= 0.47F PWM C2= 0.47F INN STBYB STBYB Signal C5= H : Active 1nF L : Stand - By -4- OUTN OCP CTRL_LGC VSS VSSO NJU8759_Ver1.1E NJU8759 Package [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. NJU8759_Ver1.1E -5- Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: NJR: NJU8759 NJU8759WLC1-TE2