IS31AP4913-QFLS2-TR ISSI

IS31AP4913 3D AND BASS ENHANCEMENT STEREO HEADPHONE DRIVER December 2013 GENERAL DESCRIPTION FEATURES The IS31AP4913 is a stereo headphone driver No output DC-blocking capacitors designed to allow the removal of the output Bass enhancement DC-blocking capacitors for reduced component count 3D enhancement and cost. The IS31AP4913 is ideal for small portable Low output noise (8V) electronics where size and cost are in concerns. High SNR (102dB) The IS31AP4913 also features 3D and bass -92dB PSRR enhancement which can be externally adjusted by a Pulse Count Control serial interface simple RC network. Thermal protection circuit IS31AP4913 is available in QFN-20 (3mm 3mm) Integrated click-and-pop suppression circuitry packages. It operates from 2.7V to 5.5V over the temperature range of -40C to +85C. QFN-20 (3mm 3mm) package APPLICATIONS Cellular handsets and PDAs Notebook PC MP3 Portable gaming TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit Note: The SGND and PGND pins of the IS31AP4913 must be routed separately back to the decoupling capacitor in order to provide proper device operation. If the SGND and PGND pins are connected directly to each other, the part will function without the risk of failure, but the noise and THD performance do not meet the specifications. Lumissil Microsystems www.lumissil.com 1 Rev. C, 12/25/2013 IS31AP4913 PIN CONFIGURATION Package Pin Configuration (Top View) INFR 1 15 OUTL INR 2 14 OUTR 3DR 3 13 VREF QFN-20 3DL 4 12 VCC INL 5 11 CTRL PIN DESCRIPTION No. Pin Description 1 INFR Right channel feedback loop in. 2 INR Right channel audio input. 3 3DR 3D control input. 4 3DL 3D control input. 5 INL Left channel audio input. 6 BASSL Left channel bass control out. 7 INFL Left channel feedback loop in. 8, 9 NC No connection. 10 SGND Signal Ground. 11 CTRL Shutdown and 3D/Bass enable control terminal. 12 VCC Supply voltage. Internal produced supply voltage for charge pump and 13 VREF audio power amplifier. 14 OUTR Right channel audio output. 15 OUTL Left channel audio output. 16 CP Charge pump flying capacitor positive terminal. 17 PGND Power ground. 18 VSS Output from charge pump. 19 CN Charge pump flying capacitor negative terminal. 20 BASSR Right channel bass control out. Thermal Pad Connect to GND. Lumissil Microsystems www.lumissil.com 2 Rev. C, 12/25/2013