19-4244; Rev 1; 12/08 KIT ATION EVALU E L B AVAILA Dual SPDT Negative Rail Analog Switches with VCC Capability Features o Distortion-Free Negative Signal Throughput from -VCC to +VCC The MAX14504/MAX14505/MAX14505A/MAX14506 dual single-pole/double-throw (SPDT) audio switches feature negative signal capability that allows signals from -VCC to +VCC to pass without distortion. They feature high continuous current ratings of 550mA (continuous) and 850mA (pulsed). These analog switches have low on-resistance, low supply current, and operate from a single +2.3V to +5.5V supply. The MAX14505/MAX14505A have internal shunt switches that discharge the audio amplifier AC-coupling capacitance at the normally open (NO) terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. The MAX14504/ MAX14505/MAX14505A/MAX14506 control the switches with control bit, CB, and feature an enable input, EN, that place COM in a high-impedance mode. o Internal Shunt Switches Reduce Click/Pop (MAX14505/MAX14505A) o Low On-Resistance 0.36 (typ) o 1m (typ) On-Resistance Flatness o COM High Impedance for EN = High o Low 0.2A (max) Shutdown Current (MAX14505A/MAX14506) o +2.3V to +5.5V Single-Supply Voltage o Small, 1.56mm x 2.14mm, 12-Bump WLP Package Pin Configuration The MAX14504/MAX14505/MAX14505A/MAX14506 are fully specified to operate from a single +2.3V to +5.5V power supply. These devices are available in a 1.56mm x 2.14mm, 12-bump WLP package, and operate over the -40C to +85C extended temperature range. MAX14504/ MAX14505/ MAX14505A/ MAX14506 TOP VIEW (BUMPS ON BOTTOM) Applications 1 2 3 4 NO2 NEG VCC NO1 COM2 EN GND COM1 NC2 CB GND NC1 + Cell Phones MP3 Players A Portable Audio Equipment Speaker Switching B C WLP (1.56mm x 2.14mm) Typical Operating Circuit appears at end of data sheet. Ordering Information/Selector Guide PIN-PACKAGE TOP MARK COM SIGNAL RANGE FOR EN = VCC CLICKLESS MAX14504EWC+ 12 WLP AAH VCC NO MAX14505EWC+* 12 WLP AAI VCC YES MAX14505AEWC+ 12 WLP AAK 0 to +VCC YES MAX14506EWC+* 12 WLP AAJ 0 to +VCC NO PART Note: All devices are specified over the -40C to +85C temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *Future product--contact factory for availability. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX14504/MAX14505/MAX14505A/MAX14506 General Description MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) VCC ........................................................................-0.3V to +6.0V NC_, NO_, COM_ (Note 1)..................-VCC - 0.3V to VCC + 0.3V NC_, NO_, COM_ (MAX14505A/MAX14506, EN = VCC) (Note 1) .......................................................-0.3V to VCC + 0.3V CB, EN......................................................................-0.3V to +6V Continuous Current (NC_, NO_, COM_).........................550mA Continuous Current on Shunt Switches ..............................5mA Peak Current (NC_, NO_, COM_) (pulsed at 1ms, 10% duty cycle)..................................850mA Continuous Power Dissipation (TA = +70C) for multilayer board: 12-Pin WLP (derate 8.5mW/C above +70C) ..............678mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Package Junction-to-Ambient Thermal Resistance (JA) (Note 2)............................................118C/W Lead Temperature (soldering) .........................................+300C Note 1: Signals on NC_, NO_, and COM_ exceeding -VCC or +VCC are clamped by internal diodes. For EN VIH signals on NC_, NO_, and COM_ exceeding 0 or +VCC are clamped by internal diodes (MAX14505A/MAX14506). Limit forward-diode current to maximum current rating. Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. 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 (VCC = +2.3 to +5.5V, TA = TMIN to TMAX, CNEG = 3.3nF, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SWITCH V EN = 0 Analog Signal Range On-Resistance On-Resistance Match Between Channels NC_, NO_, COM_ RON (MAX14504/ MAX14505) V EN = VCC VCC = +3.0V, ICOM_ = 50mA, VNC_, VNO_ = -VCC to VCC (MAX14505A/ MAX14506) -VCC +VCC -VCC +VCC 0 +VCC TA = +25C 0.36 V 0.5 TA = TMIN to TMAX 0.65 RON VCC = +3.0V, INC_ = INO_ = 50mA; between NC_ and NO_ only 10 m On-Resistance Flatness RFLAT (ON) VCC = +3.0V, INC_ = INO_ = 50mA, VNC_, VNO_ = -VCC to VCC (Note 4) 1 m Shunt Switch Resistance RSHUNT 2 VNO_ = +100mV 15 55 _______________________________________________________________________________________ 120 Dual SPDT Negative Rail Analog Switches with VCC Capability (VCC = +2.3 to +5.5V, TA = TMIN to TMAX, CNEG = 3.3nF, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 3) PARAMETER NC_ or NO_ Off-Leakage Current COM_ On-Leakage Current SYMBOL INC_ (OFF), INO_ (OFF) ICOM_ (ON) CONDITIONS MIN TYP MAX UNITS VCC = +3.0V, switch open; VNO_ = -2.5V, +2.5V; VCOM_ = +2.5V, -2.5V, unconnected (MAX14504/MAX14506) -50 VCC = +3.0V, switch open; VNC_ = -2.5V, +2.5V; VCOM_ = +2.5V, -2.5V, unconnected -50 +50 VCC = +3.0V, switch closed; VCOM_ = +2.5V, -2.5V ; VNC_ or VNO_ = +2.5V, -2.5V, unconnected -100 +100 nA +50 nA DYNAMIC TIMING (Note 5) Turn-On Time tON VNO_ or VNC_ = 0, RL = 50, Figure 1 14 60 ms Turn-Off Time tOFF VNO_ or VNC_ = 0, RL = 50, Figure 1 1.5 3 s THD+N f = 20Hz to 20kHz, VCOM_ = 0.5VP-P, RS = RL = 50; DC bias = 0 0.001 % AUDIO PERFORMANCE Total Harmonic Distortion Plus Noise Off-Isolation VISO RS = RL = 50; VCOM_ = 0.5VP-P, f = 20kHz (Note 6), Figure 2 -84 dB Crosstalk VCT RS = RL = 50; VCOM_ = 0.5VP-P, f = 20kHz (Note 7), Figure 2 -90 dB NC_ or NO_ Off-Capacitance CNC_ (OFF), CNO_ (OFF) VNC_/NO_ = 0.5VP-P, f = 1MHz; Figure 3 65 pF COM_ On-Capacitance CCOM_ (ON) VNC_/NO_ = 0.5VP-P, f = 1MHz; Figure 3 125 pF LOGIC INPUT (CB, EN) Input Logic-High VIH Input Logic-Low VIL Input Leakage Current IIN 1.4 VCB = V EN = 0 or VCC -1 V 0.5 V +1 A _______________________________________________________________________________________ 3 MAX14504/MAX14505/MAX14505A/MAX14506 ELECTRICAL CHARACTERISTICS (continued) ELECTRICAL CHARACTERISTICS (continued) (VCC = +2.3 to +5.5V, TA = TMIN to TMAX, CNEG = 3.3nF, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 5.5 V POWER SUPPLY Power-Supply Range VCC 2.3 Power-Supply Rejection Ratio (PSRR) VCC Supply Current ICC VCC Shutdown Supply Current ICC_CTRL Negative Charge-Pump Output RCOM_ = 50, f = 10kHz 78 dB VCC = +3.0V, V EN = 0, VCB = 0 or VCC 12 23 VCC = +5.5V, V EN = 0, VCB = 0 or VCC 21 41 A VCC = +3.0V, V EN = VCC (MAX14504/MAX14505) 15 VCC = +5.5V, V EN = VCC (MAX14504/MAX14505) 29 VCC = +3.0V, V EN = VCC (MAX14505A/MAX14506) 0.15 VCC = +5.5V, V EN = VCC (MAX14505A/MAX14506) 0.2 A ICC_SHDN Supply Current Increase with Supply Voltage VCC = 5.5V, VCB = V EN = 0.5V or 1.4V VNEG CNEG = 3.3nF -1.01VCC 2 5 A -VCC -0.95VCC V Note 3: All parameters are production tested at TA = +85C, and guaranteed by design over the specified temperature range. Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Note 5: All timing is measured using 20% and 80% levels. Note 6: Off-Isolation = 20log10[VCOM_/(VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch. Note 7: Between any two switches. Typical Operating Characteristics (VCC = 3.0V, TA = +25C, unless otherwise noted.) 0.8 0.7 TA = +85C TA = +25C 0.8 0.7 TA = -40C RON () 0.6 0.5 0.4 TA = +85C 0.6 TA = +25C 0.9 0.7 TA = -40C 0.5 0.4 0.6 0.3 0.2 0.2 0.1 0.1 0.1 VCOM (V) 2.30 TA = -40C 0 0 1.15 TA = +25C 0.4 0.2 0 TA = +85C 0.5 0.3 -1.15 VCC = 5.5V 0.8 0.3 0 -2.30 4 VCC = 3.0V 0.9 RON () VCC = 2.3V 1.0 MAX14504 toc02 MAX14504 toc01 0.9 ON-RESISTANCE vs. VCOM ON-RESISTANCE vs. VCOM 1.0 MAX14504 toc03 ON-RESISTANCE vs. VCOM 1.0 RON () MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability -3 -2 -1 0 VCOM (V) 1 2 3 -5.5 -4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 5.5 VCOM (V) _______________________________________________________________________________________ Dual SPDT Negative Rail Analog Switches with VCC Capability NC_/NO_ TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE tON (ms) 0.3640 2.0 tON 15 0.3645 RON () MAX14504 toc05 20 MAX14504 toc04 0.3650 1.5 10 1.0 tOFF (s) RON FLATNESS vs. VCOM tOFF 5 0.3635 0.5 0 0.3630 -2 -1 0 1 2 2.3 3 3.1 3.9 0 5.5 4.7 SUPPLY VOLTAGE (V) VCOM (V) SUPPLY CURRENT vs. SUPPLY VOLTAGE NC_/NO_ TURN-ON/TURN-OFF TIME vs. TEMPERATURE MAX14504 toc06 20 25 2.0 MAX14504 toc07 -3 CB = EN = 0 20 1.5 SUPPLY CURRENT (A) 15 10 1.0 tOFF (s) tOFF 5 0.5 0 15 10 5 0 0 -40 -15 10 35 60 2.3 85 3.1 16 14 VCC = 3.0V 1.8 100 1.6 1.4 1.2 VIH 1.0 0.8 VIL 0.6 0.4 VCC = 5.5V EN = 0 80 SUPPLY CURRENT (A) 18 5.5 SUPPLY CURRENT vs. CB LOGIC LEVEL MAX14504 toc09 VCC = 5.5V 2.0 LOGIC-INPUT LOW THRESHOLD (V) SUPPLY CURRENT (A) MAX14504 toc08 22 12 4.7 LOGIC-INPUT LOW THRESHOLD vs. SUPPLY VOLTAGE SUPPLY CURRENT vs. TEMPERATURE 20 3.9 SUPPLY VOLTAGE (V) TEMPERATURE (C) MAX14504 toc10 tON (ms) tON 60 40 20 0.2 10 CB = EN = 0 -40 -15 0 0 10 35 TEMPERATURE (C) 60 85 2.7 3.0 3.3 SUPPLY VOLTAGE (V) 3.6 0 1.1 2.2 3.3 CB LOGIC LEVEL (V) _______________________________________________________________________________________ 5 MAX14504/MAX14505/MAX14505A/MAX14506 Typical Operating Characteristics (continued) (VCC = 3.0V, TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (VCC = 3.0V, TA = +25C, unless otherwise noted.) NC_/NO_ OFF-LEAKAGE CURRENT vs. TEMPERATURE 3 2 1 150 -15 10 35 60 -3 -4 50 -5 -15 -40 85 10 35 60 -6 0.001 85 0.01 0.1 1 10 100 TEMPERATURE (C) TEMPERATURE (C) FREQUENCY (MHz) OFF-ISOLATION vs. FREQUENCY CROSSTALK vs. FREQUENCY TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 0 MAX14504 toc14 0 -20 1 -20 1000 MAX14504 toc16 -40 -2 100 0 0 MAX14504 toc13 MAX14504 toc12 200 -1 ON-LOSS (dB) 4 VNC_/VNO_ = 2.5V VCOM_ = UNCONNECTED 250 ON-LOSS vs. FREQUENCY 0 MAX14504 toc15 5 VCOM_ = 2.5V VNC_/VNO_ = UNCONNECTED 300 NC_/NO_ OFF-LEAKAGE CURRENT (pA) COM_ ON-LEAKAGE CURRENT (nA) 6 MAX14504 toc11 COM_ ON-LEAKAGE CURRENT vs. TEMPERATURE -40 -60 -80 -100 0.001 THD+N (%) CROSSTALK (dB) 0.1 OFF-ISOLATION (dB) -40 -60 -80 0.01 0.1 1 10 100 0.01 0.001 -100 0.001 1000 FREQUENCY (MHz) 0.0001 0.01 0.1 1 10 100 1000 0.01 1 0.1 FREQUENCY (kHz) FREQUENCY (MHz) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY MAX14504 toc17 100 80 PSRR (dB) MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability 60 40 20 0 10 100 FREQUENCY (kHz) 6 _______________________________________________________________________________________ 10 100 Dual SPDT Negative Rail Analog Switches with VCC Capability V CC MAX14504/ MAX14505/ MAX14505A/ MAX14506 V REF = 1.5V V CC RL NO_ VN_= 0V tR < 5ns tF < 5ns VIH LOGIC INPUT 50% VIL VOUT OR NC_ t OFF CB OR EN LOGIC INPUT GND VOUT = VIN_ VOUT NEG SWITCH OUTPUT CNEG 0.8 x V0UT 0.2 x VOUT 0V t ON ( RONRON+ RL ) VN_= VNO_ OR VNC_ Figure 1. Switching Time VCC 0.1F NETWORK ANALYZER VCC 0V OR VCC CB NC1 COM1 MAX14504/ MAX14505/ MAX14505A/ MAX14506 GND 50 50 OFF-ISOLATION = 20log CROSSTALK = 20log NO1* 50 VIN VOUT MEAS V ( VOUT ) IN V ( VOUT ) IN REF NEG 50 50 CNEG MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF. NO_ OR NC_ TERMINAL ON EACH CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. *FOR CROSSTALK, THIS PIN IS NO2. NC2 AND COM2 ARE OPEN. Figure 2. Off-Isolation and Crosstalk _______________________________________________________________________________________ 7 MAX14504/MAX14505/MAX14505A/MAX14506 Test Circuits/Timing Diagrams MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability Test Circuits/Timing Diagrams (continued) VCC 0.1F VCC COM_ MAX14504/ MAX14505/ MAX14505A/ MAX14506 CB CAPACITANCE METER NC_ OR NO_ VIL OR VIH NEG f = 1MHz CNEG GND Figure 3. Channel Off-/On-Capacitance Pin Description PIN NAME A1 NO2 Analog Switch 2, Normally Open Terminal A2 NEG Negative Supply Voltage Output. Connect NEG to GND with a 3.3nF capacitor. Do not use NEG to power any external circuitry. A3 VCC Positive Supply Voltage Input. Connect VCC to a +2.3V to +5.5V supply voltage. Bypass VCC to GND with a 0.1F ceramic capacitor placed as close as possible to the device. A4 NO1 Analog Switch 1, Normally Open Terminal B1 COM2 B2 8 EN B3, C3 GND B4 COM1 C1 NC2 C2 CB C4 NC1 FUNCTION Analog Switch 2, Common Terminal Active-Low Enable Input. Drive EN high to put switches in a high-impedance mode. Shunt click/pop switches are not affected by the state of EN. The MAX14505A/MAX14506 enter a low current state when EN is driven high. Ground Analog Switch 1, Common Terminal Analog Switch 2, Normally Closed Terminal Control Bit Input. CB controls switch 1 and switch 2. See the Functional Diagram/Truth Table. Analog Switch 1, Normally Closed Terminal _______________________________________________________________________________________ Dual SPDT Negative Rail Analog Switches with VCC Capability The MAX14504/MAX14505/MAX14505A/MAX14506 are low on-resistance, low-voltage, dual SPDT analog switches that operate from a +2.3V to +5.5V single supply. These devices feature a negative signal capability that allows signals as low as -VCC to pass through without distortion. The MAX14504/MAX14505/MAX14505A/MAX14506 have an enable input EN to put the switches in a high- impedance mode. When EN = VCC, the MAX14504/ MAX14505 terminals have a signal range of -VCC to +VCC. The MAX14505A/MAX14506 terminals have a signal range of 0 to +VCC. The MAX14505A/MAX14506 feature a low supply current when EN = VCC. The MAX14505/MAX14505A have internal shunt switches on both NO1 and NO2 terminals to suppress clickand-pop sounds that can occur when switching audio signals between precharged points. Functional Diagram/Truth Table VCC VCC MAX14504/ MAX14506 MAX14505/ MAX14505A NC1 COM1 NC2 NC1 COM1 NC2 COM2 COM2 NO1 NO1 NO2 NO2 NEG NEG CNEG CNEG CB EN CB GND EN CB COM_ TO NC_ COM_ TO NO_ 1 X HIGH IMPEDANCE HIGH IMPEDANCE 0 0 ON 0 1 OFF X = DON'T CARE. EN GND SHUNT SWITCH (MAX14505/MAX14505A) EN CB OFF X 0 ON ON X 1 OFF X = DON'T CARE. _______________________________________________________________________________________ 9 MAX14504/MAX14505/MAX14505A/MAX14506 Detailed Description MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability Digital Control Inputs The MAX14504/MAX14505/MAX14505A/MAX14506 logic inputs accept up to +5.5V, regardless of supply voltage. For example, with a +3.3V supply, CB and EN can be driven low to GND and high to +5.5V, allowing for mixed logic levels in a system. Using logic levels of VIL = 0 to VIH VCC reduces supply current. and-pop sounds that occur when switching between capacitively coupled audio sources. Audible clicks and pops are caused when a step DC voltage is switched into the speaker. The DC step transients are reduced by automatically discharging the side that is not connected to the COM terminal, reducing any residual DC voltage and reducing clicks and pops. Analog Signal Levels Applications Information These devices pass signals from -VCC to +VCC with minimal distortion and very little change in on-resistance (see the Typical Operating Characteristics). The switches are bidirectional; therefore, the NO_, NC_, and COM_ terminals can be used as either inputs or outputs. Click-and-Pop Suppression The MAX14505/MAX14505A have a shunt switch on NO1 and NO2 terminals to automatically discharge any capacitance when they are not connected to COM1 and COM2. The shunt switch reduces audible click- 10 Power-Supply Sequencing Proper power-supply sequencing is recommended for all CMOS devices. Improper supply sequencing can force the switch into latch-up, causing it to draw excessive supply current. The only way out of latch-up is to remove all signals and power and then reapply properly. Connect all ground pins first, apply power to VCC, and finally apply signals to NO_, NC_, and COM_. Follow the reverse order upon power-down. ______________________________________________________________________________________ Dual SPDT Negative Rail Analog Switches with VCC Capability VCC 0.1F MAX14504/MAX14506 NC1 MAX9788 CLASS G AUDIO AMPLIFIER COM1 NC2 COM2 NO1 CLASS D AUDIO AMPLIFIER NO2 NEG CNEG CB GND EN VCC 0.1F MAX14505/MAX14505A NC1 MAX9722 DirectDrive(R) AMPLIFIER COM1 NC2 COM2 NO1 AUDIO AMPLIFIER NO2 NEG CNEG GND CB EN Chip Information PROCESS: CMOS Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE DOCUMENT NO. 12 WLP W121A2-1 21-0009 DirectDrive is a registered trademark of Maxim Integrated Products, Inc. ______________________________________________________________________________________ 11 MAX14504/MAX14505/MAX14505A/MAX14506 Typical Operating Circuit MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches with VCC Capability Revision History REVISION NUMBER REVISION DATE 0 8/08 Initial release 1 12/08 Changed Pin Configuration and Pin Description sections DESCRIPTION PAGES CHANGED 1, 8, 11 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2008 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.