UM4157 0.8Ω Low-Voltage SPDT Analog Switch UM4157 SOT363 General Description The UM4157 is a low on resistance, low-power, Single Pole Double Throw (SPDT) analog switch. This product has been designed for switching audio signals in applications such as cell phones and portable media players. The ultra-low 0.8Ω impedance, sub μA current consumption, and 1.65V to 4.3V operating voltage range make this product ideal for battery-powered applications. The UM4157 also features bidirectional operation and break-before-make functionality. This device is fully specified for operation at 1.8V, 2.5V, and 3.3V. Applications Features z z z z Cellular Phone PDA Portable Media Player Pin Configurations z z z z Typical 0.8Ω On Resistance (RON) for 2.7V Supply 0.23Ω typical RON Flatness for 2.7V Supply Broad VCC Operating Range: 1.65V to 4.3V Low THD (0.02% Typical for 32Ω Load) Control Logic is 1.8V CMOS Logic Compatible Top View UM4157 SOT363 Ordering Information Part Number UM4157 Packaging Type SOT363 Marking Code U7H Shipping Qty 3000pcs/7 Inch Tape & Reel Function Table Select Input L H Function B0 Connected to A B1 Connected to A ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 1/10 UM4157 Absolute Maximum Ratings Symbol VCC VS VIN IIK ISW Parameter Limit - 0.5 to + 5.5 - 0.5 to (VCC + 0.3) - 0.5 to + VCC -50 100 Supply Voltage DC Switch Voltage (Note 1) DC IN Voltage (Note 1) DC Input Diode Current DC Switch Current Peak Switch Current ISWPEAK 150 (Pulsed at 1ms duration, ＜10% Duty Cycle) TJ Junction Temperature Under Bias +150 TSTG Storage Temperature Range - 65 to +150 TL Junction Lead Temperature (Soldering, 10seconds) +260 ESD Human Body Model 2000 PD SOT363 Package 180 Note 1: The input and output negative voltage ratings may be exceeded if the input and diode current ratings are observed. Unit V mA °C V mW output Recommended Ratings Symbol VCC VIN VIN TA Parameter Supply Voltage Operating Control Input Voltage (Note 2) Switch Input Voltage Operating Temperature Limit 1.65 to 4.3 0 to VCC 0 to VCC -45 to +85 Unit V °C Note 2: Unused inputs must be held HIGH or LOW, it must not float. ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 2/10 UM4157 Electrical Characteristics Limits (–40 to 85 °C) Symbol Parameter Test Conditions Vcc(V) Temp Unit Min Typ Max DC Electrical Characteristics IIN IOFF(NO/N C) ION(A) Control Leakage Current OFF State Leakage Current On State Leakage Current 0≤ VIN≤ Vcc A=0.3V, VCC-0.3V, B0 or B1=0.3V, VCC-0.3V or Floating A=0.3V, VCC-0.3V, B0 or B1=0.3V, VCC-0.3V or Floating 1.65 to 4.3 Full -0.5 +0.5 μA 1.95 to 4.3 Room Full -10 -50 +10 +50 nA 1.95 to 4.3 Room Full -20 -100 +20 +100 nA 1.4 3.6 to 4.3 VIH 2.7 to 3.6 Input High Voltage 2.3 to 2.7 Full 1.3 V 1.1 0.9 1.65 to 1.95 3.6 to 4.3 VIL Input Low Voltage ICC Quiescent Supply Current RON On-Resistance (Note3) 2.7 to 3.6 2.3 to 2.7 1.65 to 1.95 VIN =Vcc or GND IO=0 IOUT=100mA, B0 or B1=0V,0.7V,3.6V,4.3V IOUT=100mA, B0 or B1=0V,0.7V,2.0V,2.7V IOUT=100mA, B0 or B1=0V, 0.7V, 2.0V,2.3V IOUT=100mA, B0 or B1= 0.7V ΔRON RFLAT On Resistance Match Between Channels (Note4) On Resistance Flatness (Note5) IOUT=100mA, B0 or B1= 0.7V IOUT=100mA, B0 or B1= 0V to VCC 0.7 0.5 Full 0.4 0.4 4.3 Full -3 3 4.3 Full 0.6 1.0 2.7 Full 0.8 1.2 2.3 Full 0.9 1.3 1.65 Room Full 1.5 2.5 3.0 4.3 Full 0.04 0.75 2.7 Full 0.06 0.13 2.3 Full 0.12 0.20 1.65 Full 1.0 4.3 Full 0.18 0.5 2.7 Full 0.23 0.5 2.3 Full 0.28 0.6 1.65 Room 0.3 V μA Ω Ω Ω Note 3: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A or B Ports). Note 4: ΔRON = ︱RON (B0) − RON(B1) ︱measured at identical VCC, temperature and voltage levels. Note 5: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of input voltage. ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 3/10 UM4157 Electrical Characteristics (Continued) Limits (–40 to 85 °C) Symbol Parameter Test Conditions Vcc(V) Temp Unit Min Typ Max AC Electrical Characteristics 3.6 to 4.3 tON Turn-On Time B0 or B1=1.5V, RL=50Ω, CL=35pF 2.7 to 3.6 2.3 to 2.7 1.65 to 1.95 3.6 to 4.3 tOFF tBBM QINJ OIRR Xtalk BW Turn-Off Time Break Before Make Time Charge Injection Off Isolation Crosstalk -3 dB Bandwidth B0 or B1=1.5V, RL=50Ω, CL=35pF B0 or B1=1.5V, RL=50Ω, CL=35pF CL = 1.0 nF, VGEN = 0 V RGEN = 0Ω f = 100 kHz, RL=50Ω, CL = 5pF(Stray), f = 100 kHz, RL=50Ω, CL = 5pF(Stray), RL=50Ω 2.7 to 3.6 2.3 to 2.7 Room Full Room Full Room Full 55 60 60 65 65 70 Full 70 Room Full Room Full Room Full 90 30 35 35 40 40 45 1.65 to 1.95 Full 40 1.65 to 4.3 Full 3.6 to 4.3 Room 6 2.7 to 3.6 Room 6 2.3 to 2.7 Room 6 1.65 to 1.95 Room 1.65 to 4.3 Room -75 3.6 to 4.3 Room -75 2.7 to 3.6 Room -75 2.3 to 2.7 Room -75 1.65 to 1.95 Room -70 1.65 to 4.3 Room 70 2.7 to 3.6 Room 0.02 2.3 to 2.7 Room 0.036 1.65 to 1.95 Room 0.01 5 ns ns 55 ns pC dB dB MHz 3.6 to 4.3 THD Total Harmonic Distortion RL=32Ω, VIN=2VP-P f=20Hz to 20kHz RL=32Ω, VIN=1.5VP-P f=20Hz to 20kHz RL=32Ω, VIN=1.2VP-P f=20Hz to 20kHz % Capacitance Control Pin Input Capacitance f=1MHz 0.0 Room 1.5 pF CIO-B B Port Off Capacitance f=1MHz 4.5 Room 21.0 pF CIOA-ON A Port Capacitance when Switch is Enabled f=1MHz 4.5 Room 90.0 pF CIN ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 4/10 UM4157 Typical Characteristics 1: -3.000dB 72.1325MHz 80 20 60 15 40 10 20 5 S21 (dB) S21 (dB) 1: -75.204dB 100kHz 0 0 -20 -5 -40 -10 1 -15 -60 1 -20 -80 1E05 1E06 1E07 1E05 1E08 1E06 1E07 1E08 FREQUENCY (Hz) FREQUENCY (Hz) Figure1. Off-Isolation at VCC=3.3V Figure2. Bandwidth at VCC=-3.3V 1.05 1.05 1.00 1.00 Ron(m ohm) Ron(m ohm) 0.95 0.95 0.90 0.85 0.80 0.75 0.90 0.85 0.80 0.75 0.0 0.5 1.0 1.5 2.0 2.5 VB(V) 0.70 0.0 0.5 1.0 1.5 2.0 2.5 VB(V) Figure3. Switch On Resistance, Ion=100mA, Vcc=2.3V, B1 Figure4. Switch On Resistance, Ion=100mA,Vcc=2.5V,B1 0.75 Ron(m ohm) 0.70 0.65 0.60 0.55 0.50 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VB(V) Figure5. Switch On Resistance, Ion=100mA, Vcc=4.3V, B1 ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 5/10 UM4157 Test Circuits/Timing Diagrams Notes: 6.RL,RS,and CL are functions of the application environment.(see AC Electrical table for specific values) 7. CL includes test fixture and stray capacitance. Figure 6. Turn-Off Timing VCC VB VCC B0 A B1 VOUT CL* RL VCC Control Input tr=tf=2.5ns(10-90%) 50% 0V S VOUT Control Input 0.9*VOUT GND tBBM CL* includes fixture and stray capacitance Figure 7. Break-Before-Make Timing Figure 8. Off-Isolation ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 6/10 UM4157 Test Circuits/Timing Diagrams (Continued) Figure 9. Non-Adjacent Channel-to-Channel Crosstalk Figure 10. Charge Injection Test Figure 11. On/Off Capacitance Measurement Setup ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 7/10 UM4157 Test Circuits/Timing Diagrams (Continued) Network Analyzer RS VIN VS GND Vsel GND GND VOUT RT GND GND Figure 12. Bandwidth 10nF VIN Bn Signal Generator VCC RL S Logic Input 0V or VCC Analyzer GND Figure 13. Harmonic Distortion ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 8/10 UM4157 Package Information UM4157 SOT363 Outline Drawing Symbol A A1 A2 b c D E E1 e e1 L L1 θ DIMENSIONS MILLIMETERS Min Max 0.900 1.100 0.000 0.100 0.900 1.000 0.100 0.350 0.080 0.220 1.800 2.200 1.150 1.350 2.000 2.450 0.650REF 1.200 1.400 0.525REF 0.260 0.460 0° 8° INCHES Min Max 0.035 0.043 0.000 0.004 0.036 0.039 0.004 0.014 0.003 0.009 0.071 0.087 0.045 0.053 0.079 0.096 0.026REF 0.047 0.055 0.021REF 0.010 0.018 0° 8° Land Pattern NOTES: 1. Compound dimension: 2.10×1.25; 2. Unit: mm; 3.General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 9/10 UM4157 IMPORTANT NOTICE The information in this document has been carefully reviewed and is believed to be accurate. Nonetheless, this document is subject to change without notice. Union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. Union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. Union Semiconductor, Inc Add: 7F, No. 5, Bibo Road, Shanghai 201203 Tel: 021-51097928 Fax: 021-51026018 Website: www.union-ic.com ________________________________________________________________________ http://www.union-ic.com Rev.01 Aug.2009 10/10