IS31AP4913

IS31AP4913 3D AND BASS ENHANCEMENT STEREO HEADPHONE DRIVER December 2011 GENERAL DESCRIPTION The IS31AP4913 is a stereo headphone driver designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The IS31AP4913 is ideal for small portable electronics where size and cost are in concerns. The IS31AP4913 also features 3D and bass enhancement which can be externally adjusted by a simple RC network. IS31AP4913 is available in QFN-20 (3mm × 3mm) packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. FEATURES           No output DC-blocking capacitors Bass enhancement 3D enhancement Low output noise (8µV) High SNR (102dB) -92dB PSRR Pulse Count Control serial interface Thermal protection circuit Integrated click-and-pop suppression circuitry QFN-20 (3mm × 3mm) package APPLICATIONS     TYPICAL APPLICATION CIRCUIT 6.8pF RR_F3 120k Cellular handsets and PDAs Notebook PC MP3 Portable gaming RR_F1 20k 1 http://www.DataSheet4U.net/ RR_F2 20k 20 CR_IN 0.47 F RR_IN 30k BASSR INFR OUTR VSS VREF PGND 14 18 13 4.7 F 2.2 F Audio In CR_B RR_B 22nF 510k 2 INR VBattery 17 10 R3D 4.7k C3D 47nF 12 0.1 F VCC SGND 4.7 F IS31AP4913 Mode Control 100k 3DR 3DL 3 4 11 CTRL Audio In CL_IN 0.47 F RL_IN 30k CL_B RL_B 22nF 510k 5 CN INL CP 19 16 2.2 F 6 BASSL RL_F1 20k INFL 7 RL_F3 120k 6.8pF OUTL 15 RL_F2 20k Figure 1 Typical Application Circuit Note: The SGND and PGND pins of the I...