ISL54406IRTZ Renesas

DATASHEET ISL54406 FN6578 Rev 1.00 Stereo Click and Pop Eliminator with Audio Muting July 14, 2010 The ISL54406 is a Dual SPST (Single Pole/Single Features Throw) switch that provides a very low distortion Single Supply Operation (V ) . +2.7V to +5.0V audio path for a stereo headphone or high impedance DD line-in load. This path can be interrupted to provide Negative Signal Swing Capability -1.5V >110dB of off-isolation for signal muting purposes Low THD into 32 or high impedance loads such as consumer - THD+N at 1mW into 32Load . <0.02% entertainment system line-inputs, MP3 docking systems for powered speaker or automotive Click and Pop Elimination >60dB entertainment system in-line or cassette interfaces. Audio Muting . >110dB Recovery from muting is instant even with very large Low Power Consumption 21W with 3V supply DC blocking capacitors. Low Power Shutdown Mode The ISL54406 also has comprehensive Click and Pop 1.8V Logic Compatible elimination measures to prevent these artifacts from occurring in the load due to system power-up/power- Available in 10 Ld TDFN (3mmx3mm) or tiny down, codec enable/disable, headphone hot plug in, 10 Ld (1.8mmx1.4mm) TQFN Package and audio muting on/off situations. The Click and Pop Pb-Free (RoHS Compliant) elimination is effective into low and high impedance loads and requires no external timing components to Applications deal with DC blocking capacitors placed between the Consumer Entertainment Systems single supply codec and the load. MP3 and other Personal Media Players The ISL54406 is available in a 10 Ld TDFN Cellular/Mobile Phones (3mmx3mm) or a tiny 10 Ld TQFN (1.8mmx1.4mm) ultra-thin package. It operates over a temperature PDAs range of -40 to +85C. Audio Switching and Muting Related Literature*(see page 14) Technical Brief TB363 Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs). Application Note AN1368 ISL54406EVAL1Z Evaluation Board Users Manual Application Block Diagram 0.1F 3.3V CONTROLLER V DD SEL1 LOGIC CONTROL SEL2 AUDIO CODEC L L OUT IN CLICK AND POP CIRCUITRY R OUT R IN ISL54406 GND FN6578 Rev 1.00 Page 1 of 16 July 14, 2010ISL54406 Pin Configurations (Note 1) ISL54406 ISL54406 (10 Ld 3x3 TDFN) (10 Ld 1.8x1.4 TQFN) TOP VIEW TOP VIEW N.C. LIN 10 VDD SEL1 PD 1 7 6 LOGIC SEL2 N.C. CONTROL 9 N.C. RIN 2 5 8 LSHUNT CLICK LOGIC LOUT 8 N.C. AND 3 SEL1 4 GND 9 CONTROL POP CLICK 7 ROUT 4 LIN AND VDD 10 3 ROUT POP R SHUNT L SHUNT 6 1 2 5 GND RIN RSHUNT SEL2 LOUT NOTE: 1. ISL54406 Switches Shown for SEL1 = Logic 1 and SEL2 = Logic 1. Truth Table Pin Descriptions ISL54406 ISL54406 TDFN TQFN NAME FUNCTION L / L / CLICK IN SHUNT SEL2 SEL1 R R AND POP MODE 110 V Power Supply IN SHUNT DD 2 1 SEL2 Logic Control 2 00 OFF OFF InactiveShutdow n 3 2 LOUT Audio Left Output 0 1 OFF ON Active Click and 4 3 ROUT Audio Right Output Pop 5 4 GND IC Ground Connection 10 OFF ON Inactive Mute 6 5 RIN Audio Right Input 1 1 ON OFF Inactive Audio 7 6 LIN Audio Left Input 8, 9 7, 8 N.C. No Connection SEL1 and SEL2: Logic 0 when 0.5V, Logic 1 when 1.4V 10 9 SEL1 Logic Control 1 PD - PD Thermal Pad. Tie to Ground or Float FN6578 Rev 1.00 Page 2 of 16 July 14, 2010