SA58672TK,138

SA58672 3.0 W mono class-D audio amplier Rev. 04 8 June 2009 Product data sheet 1. General description The SA58672 is a mono, lter-free class-D audio amplier which is available in a 9 bump WLCSP (Wafer Level Chip-Size Package) and 10-terminal HVSON packages. The SA58672 features shutdown control. Improved immunity to noise and RF rectication is increased by high PSRR and differential circuit topology. Fast start-up time and very small WLCSP package makes it an ideal choice for both cellular handsets and PDAs. The SA58672 delivers 1.7 W at 5 V and 800 mW at 3.6 V into 8 . It delivers 3.0 W at 5 V and 1.6 W at 3.6 V into 4 . The maximum power efciency is excellent at 90 % into 8 and 84 % to 88 % into 4 . The SA58672 provides thermal and short-circuit shutdown protection. 2. Features n Output power u 3.0 W into 4 at 5 V u 1.6 W into 4 at 3.6 V u 1.7 W into 8 at 5 V u 800 mW into 8 at 3.6 V n Power supply range: 2.0 V to 5.5 V n Shutdown control n High SVRR: - 77 dB at 217 Hz n Fast start-up time: 7.0 ms n Low supply current n Low shutdown current n Short-circuit and thermal protection n Space savings with 1.66 mm 1.71 mm 0.6 mm 9 bump WLCSP package n Low junction to ambient thermal resistance of 100 K/W with adequate heat sinking of WLCSP n Enhanced power dissipation with 3.0 mm 3.0 mm 0.85 mm HVSON10 packageSA58672 NXP Semiconductors 3.0 W mono class-D audio amplier 3. Applications n Wireless and cellular handsets and PDAs n Portable DVD player n USB speakers n Notebook PC n Portable radio and gaming n Educational toys 4. Ordering information Table 1. Ordering information Type number Package Name Description Version SA58672TK HVSON10 plastic thermal enhanced very thin small outline package no leads SOT650-1 10 terminals body 3 3 0.85 mm SA58672UK WLCSP9 wafer level chip-size package 9 bumps 1.66 1.71 0.6 mm SA58672UK 5. Block diagram battery C S PVDD, AVDD R f R i INP positive OUTP bypass differential input V P H-BRIDGE R = 8 W bypass L PWM internal biasing OUTM bypass R i INM negative differential input R f INTERNAL OSCILLATOR 300 kW SHUTDOWN CONTROL 002aad820 V AGND, PGND IH V SD IL Fig 1. Block diagram SA58672 4 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 04 8 June 2009 2 of 27