APA2718 Datasheet | Anpec Electronics Coropration

Features General Description The APA2178 is a stereo, fixed gain, Cap-Free headphone driver which is available in a WLCSP2x2-16 package. The APA2178 is a ground-reference output, and doesn’ t need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’ s space, and ponent height. The built-in gain setting can minimize the external ponent counts and save the PCB space. High PSRR provides increased immunity to noise and RF rectification. In addition to these features , a fast startup time and small package size make the APA2178 an ideal choice for portable multimedia device. Moreover, the APA2178 is also equipped other features . For example, it is capable of driving 100m W at 3.3V into 16Ω, at THD+N=10% and provides thermal and short circuit protection. - - - - - - No Output Capacitor Required Operating Voltage: 1.8V~4.5V Supply Current - IDD=5m A at VDD=3.3V Low Shutdown Current - IDD=1µA at VDD=3.3V Meeting VISTA Requirements Output Power at 1% THD+N - 70m W, at VDD=3.3V, RL = 16Ω at 10% THD+N - 100m W, at VDD=3.3V, RL = 16Ω Less External ponents Required High PSRR: 78d B at 217Hz Short-Circuit and Thermal Protection ± 8KV ESD Performance Surface-Mount Packaging - WLCSP2x2-16 Lead Free and Green Devices Available (Ro HS pliant) - - - - - - Applications - - - - Handsets PDAs Portable multimedia devices Notebooks Simplified Application Circuit R-CH Input RIN ROUT L-CH Input LIN Stereo Headphone APA2178 LOUT Shutdown Control RSD LSD .. 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.3 - Jul., 2009 1 .anpec..tw APA2178 Ordering and Marking Information APA2178 Assembly Material Handling Code Temperature Range Package Code AP78 X Package Code HA : WLCSP2x2-16 Operating Ambient Temperature Range I : -40 to...