19-2942; Rev 1; 11/06 KIT ATION EVALU E L B A IL AVA 0.5Ω, Quad SPDT Switches in UCSP/QFN The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A low on-resistance, analog switches operate from a single +1.8V to +5.5V supply. The MAX4754/MAX4754A and MAX4755 are dual, double-pole, double-throw (DPDT) switches. The MAX4756/MAX4756A are quad, single-pole double-throw (SPDT) switches. They are configured to route either audio or data signals. The MAX4754/MAX4754A have four 0.5Ω SPDT switches for audio-signal routing and two logic control inputs. The MAX4755 has four 0.5Ω SPDT switches (with two switches that have an additional 11Ω series resistor at the NC terminals). This allows users to drive an 8Ω speaker as a 32Ω load (ear speaker). The MAX4756/ MAX4756A have four 0.5Ω SPDT switches controlled by one logic control input and an enable input (EN) to disable the switches. The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A are available in a space-saving 16-pin TQFN and a tiny 16-bump, 2mm x 2mm chip-scale package (UCSP™). Applications Speaker-Headset Switching Audio-Signal Routing Cellular Phones PDAs/Handheld Devices Notebook Computers Features ♦ ♦ ♦ ♦ ♦ ♦ Data and Audio-Signal Routing Low RON (0.5Ω typ) Audio Switches 0.1Ω (typ) Channel-to-Channel Matching 0.2Ω (typ) On-Resistance Flatness 0.035% (typ) THD Improved Power-Supply Current for NonRail-to-Rail Control Logic Inputs (MAX4754A/MAX4756A) ♦ +1.8V to +5.5V Supply Range ♦ Rail-to-Rail Signal Handling ♦ 16-Bump UCSP (2mm x 2mm) Ordering Information PART MAX4754EBE+T MAX4754ETE+T MAX4754AEBE+T MAX4754AETE+T MAX4755EBE+T* MAX4755ETE+T* MAX4756EBE+T* MAX4756ETE+T* MAX4756AEBE+T* MAX4756AETE+T* PIN-PACKAGE 16 UCSP-16 16 TQFN-EP** 16 UCSP-16 16 TQFN-EP** 16 UCSP-16 16 TQFN-EP** 16 UCSP-16 16 TQFN-EP** 16 UCSP-16 16 TQFN-EP** PKG CODE B16-1 T1644-4 B16-1 T1644-4 B16-1 T1644-4 B16-1 T1644-4 B16-1 T1644-4 Note: These devices operate over the -40°C to +85°C operating temperature range. *Future product—contact factory for availability. **EP = Exposed paddle. +Denotes lead-free package. UCSP is a trademark of Maxim Integrated Products, Inc. Pin Configurations appear at end of data sheet. Functional Diagrams INA NO1 INA NO1 COM1 NC1 NO2 COM2 INA NO1 11Ω NC1 NO2 COM1 COM2 COM1 NC1 NO2 COM2 11Ω NC2 NO3 NC2 NO3 COM3 NC3 NO4 COM4 NC4 INB NC2 NO3 COM3 NC3 NO4 COM4 NC4 INB MAX4754/ MAX4754A COM3 NC3 NO4 COM4 NC4 EN MAX4755 MAX4756/ MAX4756A ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A General Description MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) V+, IN_, EN...............................................................-0.3V to +6V COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V) Continuous Current NC1, NC2, COM1, COM2 (MAX4755)........................±100mA NO_, NC_, COM_ (remaining terminal connections) ....±300mA Peak Current NC1, NC2, COM1, COM2 (MAX4755) (Pulsed at 1ms, 10% duty cycle)................................±200mA (Pulsed at 1ms, 50% duty cycle)................................±150mA Peak Current NO_, NC_, COM__ (remaining terminal connections) (Pulsed at 1ms, 10% duty cycle)............................±500mA (Pulsed at 1ms, 50% duty cycle)............................±400mA Continuous Power Dissipation (TA = +70°C) 16-Bump UCSP (derate 8.2mW/°C above +70°C) ......660mW 16-Pin TQFN (derate 16.9mW/°C above +70°C)............................................................1349mW ESD per Method 3015.7...................................................±2kV Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Bump Temperature (soldering) Infrared (15s) ...............................................................+220°C Vapor Phase (60s) .......................................................+215°C Lead Temperature (soldering, 10s) .................................+300°C Note 1: Signals on NO_, NC_, COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maximum current rating. 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 +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at +3V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TMIN to TMAX 0 TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match Between Channels On-Resistance Flatness 2 VCOM_, VNO_, VNC_ RON ΔRON RFLAT(ON) V+ = 2.7V, ICOM_= 10mA, VNC_ or VNO_ = 0V or V+ (Note 4) V+ = 2.7V, ICOM_ = 10mA, VNC_ or VNO_ = +1.5V (Notes 4, 5) MAX4755 (NO1, NO2, N_3, N_4), MAX4754/ MAX4754A/MAX4756/ MAX4756A +25°C 0.5 TMIN to TMAX 1.0 Ω +25°C MAX4755 (NC1, NC2) TMIN to TMAX MAX4755 (NO1, NO2, N_3, N_4) MAX4754/ MAX4756 +25°C MAX4755 (NC1, NC2) V+ = +2.7V ICOM_ = 10mA, VNC_ or VNO_ = 0 or V+ (Notes 4, 5) MAX4754A/MAX4756A V+ = 3V, ICOM_ = 10mA, VNO_ or VNC_ = 0V, 0.6V, or V+ (Note 6) MAX4755 (NO1, NO2, N_3, N_4, NO1, NO2), MAX4754/ MAX4754A/MAX4756/ MAX4756A 11.5 8.0 12.5 0.1 TMIN to TMAX +25°C 0.2 0.4 Ω 0.55 0.1 0.35 Ω TMIN to TMAX +25°C 0.35 0.55 TMIN to TMAX +25°C 0.85 0.55 0.2 TMIN to TMAX _______________________________________________________________________________________ 0.4 0.55 Ω 0.5Ω, Quad SPDT Switches in UCSP/QFN (V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at +3V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS V+ = 3.6V; VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 0.3V, 3.3V MAX4754/MAX4754A/MAX4755/MAX4756/ MAX4756A NO_, NC_ Off-Leakage Current INO_(OFF), INC_(OFF) COM_ Off-Leakage Current V+ = 3.6V (MAX4756/MAX4756A); ICOM_(OFF) VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 0.3V, 3.3V COM_ On-Leakage Current ICOM_(ON) V+ = 3.6V; VCOM_ = 3.3V, 0.3V; VNO_ or VNC_ = 3.3V, 0.3V or unconnected TA MIN TYP +25°C -4 +4 TMIN to TMAX -10 +10 +25°C -6 TMIN to TMAX -15 +15 +25°C -3 +3 TMIN to TMAX -15 +15 0.01 MAX UNITS nA +6 Ω nA DYNAMIC +25°C Turn-On Time NC_ tON, NC V+ = 2.7V, VNC_ = 1.5V, RL = 50Ω, CL = 35pF (Figure 1) MAX4754A/MAX4756A Turn-Off Time NC_ tOFF, NC V+ = 2.7V, VNC_ = 1.5V, RL = 50Ω, CL = 35pF (Figure 1) MAX4754A/MAX4756A Turn-On Time NO_ tON, NO V+ = 2.7V, VNC_ = 1.5V, RL = 50Ω, CL = 35pF (Figure 1) MAX4754A/MAX4756A Turn-Off Time NO_ tOFF, NO V+ = 2.7V, VNC_ = 1.5V, RL = 50Ω, CL = 35pF (Figure 1) MAX4754A/MAX4756A 320 TMIN to TMAX 900 +25°C 27 TMIN to TMAX 70 TMIN to TMAX Turn-Off Time 300 TMIN to TMAX V+ = 2.7V, VNO_, or VNC_ = 1.5V; RL = 50Ω; CL = 35pF, (Figure 1) MAX4754/MAX4755/MAX4756 +25°C tON +25°C tOFF V+ = 2.7V, VNO_, or VNC_ = 1.5V; RL = 50Ω; CL = 35pF (Figure 1) MAX4754/MAX4755/MAX4756 tBBM V+ = 2.7V, VNO_, or VNC_ = 1.5V; RL = 50Ω, CL = 35pF (Figure 2) (Note 7) TMIN to TMAX TMIN to TMAX Break-Before-Make Charge Injection Q On-Channel -3dB Bandwidth TMIN to TMAX ns 50 60 +25°C ns 140 150 25 ns 650 900 45 ns 150 200 +25°C ns 60 70 +25°C Turn-On Time 650 ns 15 ns 2 VGEN = 0V, RGEN = 0, CL = 1.0nF (Figure 3) +25°C 300 pC BW Signal = 0dBm, CL = 50pF, Rs = 50Ω, RL = 50Ω +25°C 10 MHz Off-Isolation VISO CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P f = 100kHz (Figure 4) (Note 8) +25°C -65 dB Crosstalk VCT CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P f = 100kHz (Figure 4) (Note 9) +25°C -90 dB _______________________________________________________________________________________ 3 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A ELECTRICAL CHARACTERISTICS (continued) MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at +3V and TA = +25°C.) (Notes 2, 3) PARAMETER Total Harmonic Distortion SYMBOL THD CONDITIONS f = 20Hz to 20kHz, 1VP-P, RL = 32Ω, VDC = V+/2 NO_, NC_ OffCapacitance CNO_(OFF), VNO, VNC_ = GND, CNC_(OFF) f = 1MHz (Figure 5) COM_ Off-Capacitance CCOM_(OFF) VCOM_ = GND, f = 1MHz (Figure 5) COM_ On-Capacitance C(ON) TA MIN TYP MAX UNITS +25°C 0.035 % +25°C 180 pF +25°C 300 pF VCOM_ = GND, f = 1MHz (Figure 5) +25°C 400 pF V+ = 2.7V to 3.6V, MAX4754/MAX4755/MAX4756 TMIN to TMAX 1.4 V+ = 2.7V to 5.25V, MAX4754A/MAX4756A TMIN to TMAX 1.4 V+ = 3.6V to 5.25V, MAX4754/MAX4755/MAX4756 TMIN to TMAX 2.0 V+ = 2.7V to 3.6V, MAX4754/MAX4755/MAX4756 TMIN to TMAX 0.5 V+ = 2.7V to 5.25V, MAX4754A/MAX4756A TMIN to TMAX 0.5 V+ = 3.6V to 5.25V, MAX4754/MAX4755/MAX4756 TMIN to TMAX 0.6 VIN = 0V or V+ TMIN to TMAX 1 µA 5.5 V DIGITAL I/O (IN_, EN) Input Logic-High Input Logic-Low Input Leakage Current VIH VIL IIN V V POWER SUPPLY Power-Supply Range TMIN to TMAX V+ V+ = 5.5V, VIN_ = 0V or V+, MAX4754/MAX4754A/MAX4755/MAX4756/ MAX4756A Power-Supply Current I+ +25°C 0.2 TMIN to TMAX +25°C V+ = 5.5V, VIN_ = 0.5V or 1.4V, MAX4754A/MAX4756A 1.8 2 µA 6.5 TMIN to TMAX 12 µA Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: UCSP parts are 100% tested at +25°C and limits across the full temperature range are guaranteed by correlation and design. TQFN parts are 100% tested at +85°C and limits across the full temperature range are guaranteed by correlation and design. Note 4: RON and ΔRON matching specifications are guaranteed by design and correlation. Note 5: ΔRON = RON(MAX) - RON(MIN). Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 7: Guaranteed by design, not production tested. Note 8: Off-Isolation = 20log10 [VCOM / (VNO or VNC)], VCOM = output, VNO or VNC = input to off switch. Note 9: Between any two switches. 4 _______________________________________________________________________________________ 0.5Ω, Quad SPDT Switches in UCSP/QFN ON-RESISTANCE vs. VCOM AND TEMPERATURE 0.8 2.0 V+ = 2.3V V+ = 2.7V V+ = 3.0V 1.0 V+ = 5.5V 1 2 3 4 0.2 0.1 0 0 2 1 3 0 1 2 3 4 VCOM (V) VCOM (V) ON-RESISTANCE vs. VCOM ON-RESISTANCE vs. VCOM AND TEMPERATURE ON-RESISTANCE vs. VCOM AND TEMPERATURE V+ = +1.8V 12.5 13.0 RON (Ω) V+ = +2.3V V+ = +2.5V 11.0 12.0 TA = +85°C 11.5 TA = +25°C 10.5 V+ = +5V 10.0 TA = +25°C 10.5 TA = -40°C TA = -40°C 10.0 10.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 TA = +85°C 11.5 11.0 11.0 V+ = +3.0V 0 0.5 1.0 1.5 2.0 2.5 0 3.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V) NO/NC OFF-LEAKAGE CURRENT vs. TEMPERATURE (MAX4754/MAX4755/MAX4756) COM ON-LEAKAGE CURRENT vs. TEMPERATURE CHARGE INJECTION vs. VCOM (MAX4754/MAX4755/MAX4756) 1 0.1 MAX4754A-56A toc08 10 V+ = 5V COM ON-LEAKAGE CURRENT (nA) MAX4754A-56A toc07 V+ = 5V 1 0.1 -15 10 35 TEMPERATURE (°C) 60 85 CL = 1nF V+ = 5V 80 70 60 50 40 30 20 V+ = 3V 10 0 0.01 0.01 120 110 100 90 MAX4754A-56A toc09 VCOM (V) CHARGE INJECTION (pC) VCOM (V) 10 5 MAX4755 NC1, NC2 CHANNELS V+ = +5V 12.5 12.0 V+ = +2V 11.5 MAX4755 NC1, NC2 CHANNELS V+ = +3V RON (Ω) 12.0 13.0 MAX4754A-56A toc04 12.5 -40 TA = -40°C VCOM (V) MAX4755 NC1, NC2 CHANNELS 0 TA = +25°C 0.3 TA = -40°C 0.1 5 13.0 10.5 0.5 0.2 MAX4754A-56A toc05 0 TA = +85°C 0.6 0.4 0 0 RON (Ω) 0.5 0.3 0.5 NO/NC OFF-LEAKAGE (nA) TA = +25°C 0.7 0.4 V+ = 2.7V 1.5 0.6 0.8 MAX4754A-56A toc06 RON (_) RON (Ω) 3.0 2.5 TA = +85°C 0.7 V+ = +5.0V 0.9 RON (_) V+ = 1.8V V+ = 3.0V 0.9 1.0 MAX4754A-56A toc02 4.0 3.5 1.0 MAX4754A-56A toc01 4.5 ON-RESISTANCE vs. VCOM AND TEMPERATURE MAX4754A-56A toc03 ON-RESISTANCE vs. VCOM (MAX4754A/MAX4756A) -40 -15 10 35 TEMPERATURE (°C) 60 85 0 1 2 3 4 5 VCOM (V) _______________________________________________________________________________________ 5 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Typical Operating Characteristics (V+ = 3V, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (V+ = 3V, TA = +25°C, unless otherwise noted.) V+ = 5V 100 50 1.2 1.0 0.8 0.6 10 0.1 V+ = 3.0V 0.01 0.2 V+ = 3V 0.001 0 0 V+ = 5V 1 0.4 0 1 2 3 5 4 1 2 3 4 -40 6 5 -15 10 35 60 85 VCOM (V) SUPPLY VOLTAGE (V) TEMPERATURE (°C) SUPPLY CURRENT vs. TEMPERATURE (MAX4754A/MAX4756A) LOGIC THRESHOLD vs. SUPPLY VOLTAGE (MAX4754/MAX4755/MAX4756) LOGIC THRESHOLD vs. SUPPLY VOLTAGE (MAX4754A/MAX4756A) 1 V+ = 3.0V 0.1 0.01 VIL 1.6 1.2 0.8 1.2 0.4 0.001 -15 -10 35 85 60 1.0 VIH 0.8 VII 0.6 0.4 0.2 0 -40 MAX4754A-56A toc15 VIH 2.0 1.4 LOGIC THRESHOLD (V) V+ = 5.0V MAX4754A-56A toc14 10 2.4 LOGIC THRESHOLD (V) MAX4754A-56A toc13 100 0.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.5 2.5 3.5 4.5 5.5 TEMPERATURE (°C) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) TURN-ON/OFF TIMES vs. SUPPLY VOLTAGE (MAX4754/MAX4755/MAX4756) TURN-ON/OFF TIMES vs. SUPPLY VOLTAGE (MAX4754A) TURN-ON/OFF TIMES vs. TEMPERATURE (MAX4754/MAX4755/MAX4756) 60 700 600 tON/tOFF (ns) 50 40 tON 30 tOFF 20 500 tON, NC tOFF, NO 400 300 200 10 50 tON, NO tOFF, NC 40 tON, V+ = 3V 20 10 0 1.5 2.0 2.5 3.0 3.5 4.0 SUPPLY VOLTAGE (V) 4.5 5.0 5.5 tON, V+ = 5V 30 tOFF, V+ = 3V tOFF, V+ = 5V 100 0 MAX4754A-56A toc18 800 MAx4754A-56A toc16 70 tON/tOFF (ns) SUPPLY CURRENT (nA) 1.4 MAX4754-56 toc12 1.6 100 SUPPLY CURRENT (nA) 150 1.8 MAX4754A-56A toc17 CHARGE INJECTION (pC) 200 2.0 MAX4754A-56A toc11 CI = 1nF SUPPLY CURRENT (nA) MAX4754A-56A toc10 250 6 SUPPLY CURRENT vs. TEMPERATURE (MAX4754/MAX4755/MAX4756) SUPPLY CURRENT vs. SUPPLY VOLTAGE CHARGE INJECTION vs. VCOM tON/tOFF (ns) MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN 0 1.5 2.5 3.5 4.5 SUPPLY VOLTAGE (V) 5.5 -40 -15 10 35 TEMPERATURE (°C) _______________________________________________________________________________________ 60 85 0.5Ω, Quad SPDT Switches in UCSP/QFN SUPPLY CURRENT vs. LOGIC CONTROL INPUT 250 tON, NO 200 150 tOFF, NC 100 50 3000 2500 2000 1500 -15 10 35 60 SUPPLY VOLTAGE (V) -20 -40 -60 500 -120 0 1 2 3 IN_ (V) 4 5 6 OFF-ISOLATION -80 -100 85 ON-LOSS -140 0.0001 0.001 CROSS-TALK 0.01 0.1 1 10 100 FREQUENCY (MHz) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 1.0 MAX4754A-56A toc22 -40 0 1000 0 0 RL = 32Ω THD + N (%) tON/tOFF (ns) 300 V+ 5.5V 3500 ON-LOSS (dB) tOFF, NO 350 20 MAX4754A-56A toc20 tON, NC 400 FREQUENCY REPSONSE 4000 CROWBAR CURRENT (nA) MAX4754A-56A toc19 450 MAX4754A-56A toc21 TURN-ON/OFF TIMES vs. TEMPERATURE (MAX4754A) 0.1 0.01 0.001 0.01 0.1 1 10 100 FREQUENCY (kHz) _______________________________________________________________________________________ 7 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Typical Operating Characteristics (continued) (V+ = 3V, TA = +25°C, unless otherwise noted.) MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN Pin Description PIN MAX4754/MAX4754A 8 MAX4755 MAX4756/MAX4756A NAME FUNCTION UCSP QFN UCSP QFN UCSP QFN C1 1 C1 1 C1 1 NO1 Analog Switch 1. Normally open terminal 1. C2 2 C2 2 C2 2 INA Logic Control Digital Input for Switches 1 and 2. Digital control input for switches 1–4 for MAX4756. B1 3 B1 3 B1 3 COM1 A1 4 A1 4 A1 4 NC1 A2 5 A2 5 A2 5 NO4 B2 6 B2 6 B2 6 V+ A3 7 A3 7 A3 7 COM4 A4 8 A4 8 A4 8 NC4 B4 9 B4 9 B4 9 NO2 Analog Switch 2. Normally open terminal 2. B3 10 B3 10 — — INB Logic Control Digital Input for Switches 3 and 4 Analog Switch 1. Common terminal. Analog Switch 1. Normally closed terminal 1. Analog Switch 4. Normally open terminal 4. Positive Supply Voltage Analog Switch 4. Common terminal. Analog Switch 4. Normally closed terminal 4. — — — — B3 10 EN C4 11 C4 11 C4 11 COM2 D4 12 D4 12 D4 12 NC2 Analog Switch 2. Normally closed terminal 2. D3 13 D3 13 D3 13 NO3 Analog Switch 3. Normally open terminal 3. C3 14 C3 14 C3 14 GND D2 15 D2 15 D2 15 COM3 D1 16 D1 16 D1 16 NC3 — EP — EP — EP EP Output Enable. Active low. Analog Switch 2. Common terminal 2. Ground Analog Switch 3. Common terminal 3. Analog Switch 4. Normally closed terminal 3. Exposed Paddle. Connect EP to GND. _______________________________________________________________________________________ 0.5Ω, Quad SPDT Switches in UCSP/QFN INTERNAL SPEAKER (8Ω) INA NO1 EAR SPEAKER (32Ω) LOUD SPEAKER (8Ω) INA NO1 COM1 INTERNAL SPEAKER (8Ω) INA NO1 COM1 COM1 11Ω NC1 NO2 NC1 NO2 COM2 NC2 NO3 NC1 NO2 11Ω COM2 NC2 NO3 NC2 NO3 COM3 NC3 NO4 COM3 NC3 NO4 MAX4754/ MAX4754A COM3 NC3 NO4 COM4 HEADPHONE (32Ω) NC4 INB COM2 COM4 CAR-KIT SPEAKER (8Ω) NC4 INB MAX4755 Detailed Description The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A low on-resistance analog switches operate from a single +1.8V to +5.5V supply. The devices are fully specified for nominal 3V applications. The MAX4754/MAX4754A DPDT switch have two logic control inputs with each input controlling two SPDT switches. Each switch has a 0.5Ω on-resistance in the NO and NC terminals making it ideal for switching audio signals. The MAX4755 DPDT switch also has four 0.5Ω SPDT switches with the switch pairs 1 and 2 adding an 11.5Ω series resistor to the NC terminal. This feature allows the user to drive an 8Ω speaker as a 32Ω load, allowing it to be used as an ear speaker. Two logic control inputs are used to control the four switches. The MAX4756/MAX4756A has four 0.5Ω SPDT switches controlled by one logic control input (INA) and EN input to disable the switches. Applications Information Digital Control Inputs The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A logic inputs accept up to +5.5V regardless of the supply voltage. For example, with a +3.3V supply IN_ can be driven low to GND and high to +5.5V, which allows mixed logic levels in a system. Driving the control logic COM4 HEADPHONE (32Ω) NC4 EN MAX4756/ MAX4756A inputs rail-to-rail also minimizes power consumption. For a +3V supply voltage, the logic thresholds are 0.5V (low) and 1.4V (high). For the MAX4756/MAX4756A, drive EN low to enable the COM_. When EN is high, COM _ is high impedance. Analog Signal Levels Analog signal inputs over the full voltage range (0V to V+) are passed through the switch with minimal change in on-resistance (see the Typical Operating Characteristics). The switches are bidirectional so NO_, NC_, and COM_ can be either inputs or outputs. Power-Supply Bypassing Power-supply bypassing improves noise margin and prevents switching noise from propagating from the V+ supply to other components. A 0.1µF capacitor connected from V+ to GND is adequate for most applications. UCSP Applications Information For the latest application details on UCSP construction, dimensions, tape carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, go to the Maxim website at www.maxim-ic.com/ucsp for the Application Note: UCSP—A Wafer-Level Chip-Scale Package. _______________________________________________________________________________________ 9 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Typical Operating Circuit MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN Timing Circuits/Timing Diagrams MAX4754/MAX4754A MAX4755/MAX4756/ MAX4756A VN_ V+ LOGIC INPUT V+ COM_ NO_ OR NC_ V+ 0V VOUT RL t OFF CL IN_ VOUT GND LOGIC INPUT SWITCH OUTPUT ( 0.9 x V0UT 0.9 x VOUT 0V t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON VOUT = VN_ 50% 50% t r < 5ns t f < 5ns IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. ) Figure 1. Switching Time V+ MAX4754/MAX4754A MAX4755/MAX4756/ MAX4756A LOGIC INPUT V+ VOUT COM_ NO_ RL IN_ LOGIC INPUT 50% 0V NC_ VN_ V+ CL GND 0.9 x VOUT VOUT tBBM CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 2. Break-Before-Make Interval V+ MAX4754/MAX4754A MAX4755/MAX4756/ MAX4756A RGEN V GEN ΔVOUT V+ VOUT COM_ NC_ OR NO_ VOUT IN OFF CL GND ON OFF IN_ VIL TO VIH IN OFF ON OFF Q = (ΔV OUT )(C L ) LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. Figure 3. Charge Injection 10 ______________________________________________________________________________________ 0.5Ω, Quad SPDT Switches in UCSP/QFN +5V 10nF OFF-ISOLATION = 20log NETWORK ANALYZER 0V OR V+ NC1 50Ω V+ IN_ 50Ω VIN COM1 MAX4754/MAX4754A MAX4755/MAX4756/ MAX4756A NO1* VOUT GND MEAS 50Ω MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. VOUT VIN V ON-LOSS = 20log OUT VIN 50Ω REF V CROSSTALK = 20log OUT VIN 50Ω *FOR CROSSTALK, THIS PIN IS NO2. NC2 AND COM2 ARE OPEN. Figure 4. On-Loss, Off-Isolation, and Crosstalk 10nF V+ V+ MAX4754/MAX4754A/ MAX4755/MAX4756/ MAX4756A COM_ IN CAPACITANCE METER f = 1MHz VIL OR VIH NC_ or NO_ GND Figure 5. Channel On-/Off-Capacitance ______________________________________________________________________________________ 11 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Timing Circuits/Timing Diagrams (continued) Pin Configurations/Truth Tables TOP VIEW MAX4754 MAX4754A MAX4755 MAX4756 MAX4756A 3 4 A NC1 NO4 COM4 NC4 B COM1 V+ INB (EN) NO2 C NO1 INA GND COM2 D NC3 COM3 NO3 NC2 NO2 2 INB (EN) 1 COM2 (BUMP SIDE DOWN) NC2 MAX4754/MAX4754A/MAX4755/ MAX4756/MAX4756A 12 11 10 9 + NO3 13 8 NC4 GND 14 7 COM4 COM3 15 6 V+ NC3 16 5 NO4 — — NC1 MAX4756/MAX4756A NO1/NO2 NC1/NC2 NO3/NO4 NC3/NC4 OFF ON — — ON OFF — — — — 4 *EP: EXPOSED PADDLE CONNECTED TO GND. MAX4754/MAX4754A/MAX4755 INB LOW HIGH 3 TQFN UCSP INA LOW HIGH 2 COM1 ( ) FOR MAX4756/MAX4756A. 1 INA + EP* NO1 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN OFF ON EN LOW LOW HIGH HIGH INA LOW HIGH X X NO_ OFF ON OFF OFF NC_ ON OFF OFF OFF ON OFF Chip Information PROCESS: CMOS 12 ______________________________________________________________________________________ 0.5Ω, Quad SPDT Switches in UCSP/QFN 24L QFN THIN.EPS PACKAGE OUTLINE, 12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm 21-0139 E 1 2 ______________________________________________________________________________________ 13 MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A 0.5Ω, Quad SPDT Switches in UCSP/QFN Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) PACKAGE OUTLINE, 12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm 21-0139 14 ______________________________________________________________________________________ E 2 2 0.5Ω, Quad SPDT Switches in UCSP/QFN 16L,UCSP.EPS PACKAGE OUTLINE, 4x4 UCSP 21-0101 H 1 1 Revision History Pages changed at Rev 1: 1–5, 7, 8, 13, 14, 15 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2006 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc. MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)