MAX4908/MAX4909/ Dual 3:1 Clickless Audio Multiplexers MAX4930/MAX4932 with Negative-Signal Handling General Description Benefits and Features The MAX4908/MAX4909/MAX4930/MAX4932 dual Distortion-Free Negative Signal Throughput Down to 3:1 clickless audio multiplexers feature negative-signal V - 5.5V CC capability that allows signals as low as V - 5.5V to pass CC Internal Shunt Resistors Reduce Click-and-Pop Sounds through without distortion. These analog multiplexers High PSRR Reduces Supply Noise have a low on-resistance (0.38), low supply current, and Low On-Resistance: 0.38 (typ) operate from a single +1.8V to +5.5V supply. Channel-to-Channel Matching: 0.1 (max) The MAX4908 has shunt resistors on all input terminals, and the MAX4909 has shunt resistors on all input terminals On-Resistance Flatness: 0.35 (max) except X0 and Y0. The MAX4930 has shunt resistors only Single +1.8V to +5.5V Supply Voltage on the X2 and Y2 terminals, and the MAX4932 has no -70dB (typ) Crosstalk (20kHz) shunt resistors. The shunt resistor feature reduces click- and-pop sounds by automatically discharging the capacitance -80dB (typ) Off-Isolation (20kHz) at the input terminal when they are not connected. A 0.02% (typ) Total Harmonic Distortion break-before-make feature further reduces popping. 50nA Leakage Current The MAX4908/MAX4909/MAX4930/MAX4932 use two 50nA Supply Current digital control inputs CB1 and CB2 to switch between signals. The digital control inputs can accept up to +5.5V independent of the supply voltage. The MAX4908/MAX4909/MAX4930/MAX4932 are available in 12-bump wafer-level package (WLP) and 14-pin TDFN-EP package and operate over the -40C to +85C extended temperature range. Applications Cell Phones PDAs and Handheld Devices Notebook Computers MP3 Players 19-3958 Rev 4 3/16MAX4908/MAX4909/ Dual 3:1 Clickless Audio Multiplexers MAX4930/MAX4932 with Negative-Signal Handling Absolute Maximum Ratings (All voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A V , CB .............................................................-0.3V to +6.0V 12-Bump WLP (derate 8.5mW/C above +70C) ............678mW CC X, X , Y, Y ......................................(V - 6V) to (V + 0.3V) 14-Pin TDFN, Single-Layer Board CC CC Continuous Current X, X , Y, Y ....................................300mA (derate 18.5mW/C above +70C) ............................1482mW Peak Current X, X , Y, Y (pulsed at 1ms, 14-Pin TDFN, Multilayer Board 50% Duty Cycle) .........................................................400mA (derate 24.4mW/C above +70C) ............................1951mW Peak Current X, X , Y, Y (pulsed at 1ms, Operating Temperature Range ........................... -40C to +85C 10% Duty Cycle) .........................................................500mA Junction Temperature ......................................................+150C Storage Temperature Range ............................ -65C to +150C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V = +2.7V to +5.5V, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.0V, T = +25C.) (Note 1) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Supply Voltage V 1.8 5.5 V CC V = +5.5V, V = 0V or V 0.05 2 CC CB CC V = +2.7V, V = +0.5V or +1.4V 4 Supply Current I A CC CB CC V = +5.5V, V = +0.5V or +1.4V 8 CC CB ANALOG SWITCH V , V , V - X Y CC Analog Signal Range (Note 2) V V CC V , V 5.5V X Y T = +25C 0.38 0.75 V = +2.7V V = V = A CC X Y On-Resistance (Note 3) R V - 5.5V -1V, 0V, +1V, +2V, ON CC T = T to T 0.8 A MIN MAX V I = I = 100mA CC X Y On-Resistance Match Between Between X0 and Y0, X1 and Y1, X2 and Y2 R 0.1 ON Channels (Notes 3 and 4) V = +2.7V V or V = 0V I = I = 100mA CC X Y X Y On-Resistance Flatness V = +2.7V V = V = V - 5.5V, CC X Y CC R 0.35 FLAT (Notes 3 and 5) -1V, 0, +1V, +2V, V I = I = 100mA CC X Y Shunt Switch Resistance R 2 3.8 6 k SH T = +25C -50 +50 V = +2.7V, switch open, A CC X0, Y0 Off-Leakage Current V or V = -2.5V or +2.5V, X0 Y0 (MAX4909/MAX4930/MAX4932) T = T to T -200 +200 A MIN MAX V or V = +2.5V or -2.5V X Y T = +25C -50 +50 V = +2.7V, switch open, A CC X1, Y1 Off-Leakage Current I V or V = -2.5V or +2.5V, nA L(OFF) X1 Y1 (MAX4930/MAX4932) T = T to T -200 +200 A MIN MAX V or V = +2.5V or -2.5V X Y T = +25C -50 +50 V = +2.7V, switch open, A CC X2, Y2 Off-Leakage Current V or V = -2.5V or +2.5V, X2 Y2 (MAX4932) T = T to T -200 +200 A MIN MAX V or V = +2.5V or -2.5V X Y V = +2.7V, switch closed, CC T = +25C -100 +100 A V or V = -2.5V or +2.5V X0 Y0 X, Y On-Leakage Current I nA L(ON) or unconnected, V = V = -2.5V X Y T = T to T -300 +300 A MIN MAX or +2.5V or floating Maxim Integrated 2 www.maximintegrated.com