Leshan Radio Co ., Ltd 0.6Ω Ω Low Ron、 、80MHz High BW SPDT Analog Switch Features LR1553 Description Wide Power Supply Range: 1.8V to 5.5V High Bandwidth: double throw (SPDT) CMOS switch. It features low 80MHz@Vcc=4.5V, 85MHz@Vcc=2.7V on-resistance High Off-Isolation: -61dB (80MHz). LR1553 features low on-resistance flatness Ultra-Low On-Resistance: over the signal range (0.18Ω TYP). This ensures 0.6Ω@Vcc=4.5V, 1.2Ω@Vcc=2.7V excellent linearity and low distortion when switching Fast Switching Time audio signals. Ton = 12.0ns; Toff = 10.0ns(Vcc=2.7V) The LR1553 is a single, bi-directional, single-p ole (0.6Ω TYP) and high-bandwidth The LR1553 is designed for low operating voltage Low THD (0.01% @ Vcc = 2.7V) (1.65V-5.5V), high current switching of speaker Break-Before-Make Switching output 5ns @ Vcc = 2.7V microphone/speaker/ring tone generator in a mono- Rail-to-Rail Signal Range phone mode. The device contains a break before Operation Temperature Range: make feature which eliminates signal disruption -40℃ to 85℃ for cell phone or a balanced during switching. Lead (Pb) Free SOT363-6 Package LR1553 is available in a SOT363 package. Block Diagram Applications Cell Phone Speaker Switching Power Switching Computer Peripherals Modems LR1553 S VCC A 6 5 4 D SSS 1 GND 2 B0 3 S 6 1553 Pin Configuration B1 5 VCC 4 A Pin Description 1 2 3 B1 GND B0 SSS: production id Function Table S(LOGIC) Function 0 B0 Connected to A 1 B1 Connected to A NAME PIN FUNCTION B1 1 Data port 1 GND 2 Ground B0 3 Data port 0 A 4 Common Data port VCC 5 Power supply Digital control pin to S 6 connect the A port to the B0 or B1 port. Note: B0, B1 and A port may be an input or output. Block Diagram Shown For Logic “0” Input 1/8 Leshan Radio Co ., Ltd MAXIMUM RATINGS Symbol Value Unit VCC Positive DC Supply Voltage Rating 0.5 to +6.0 V VIS Analog Input Voltage (VB1, VB0, or VA) 0.5 to VCC +0.5 V VS Digital Select Input Voltage 0.5 to +6.0 V l anll Continuous DC Current from A to B0/B1 ±300 mA l anlpkl Peak Current from A to B0/B1, 10 Duty Cycles (Note 1) ±500 mA Iclmp Continuous DC Current into A/B0/B1 with respect to VCC or GND ±100 mA Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. Defined as 10% ON, 90% off duty cycle. RECOMMENDED OPERATING CONDITIONS Symbol Rating Min Max Unit VCC Positive DC Supply Voltage 1.65 5.5 V VIS Analog Input Voltage (A, B0, B1) 0 VCC V VS Digital Select Input Voltage (S) 0 VCC V TA Operating Temperature Range 40 85 ℃ tr, tf Input Rise or Fall Time, SELECT 20 10 ns/V VCC = 3.0 V VCC = 5.5 V 2/8 Leshan Radio Co ., Ltd DC ELECTRICAL CHARACTERISTICS TA = +25℃ (v) Min Symbol Parameter VIH HIGH Level Input Voltage 2.7 4.5 VIL LOW Level Input Voltage 2.7 4.5 IIN Input Leakage Current 0 ≤ VS ≤ 5.5 V IOFF OFF State Leakage Current 0≤A, B < VCC 5.5 ION ON State Leakage Current 0≤A, B < VCC 5.5 RON Switch On Resistance (Note 2) IO = 100 mA, B0 or B1 = 3.5 V 2.7 IO = 100 mA, B0 orB1=1.5V 4.5 VS = VCC or GND, IOUT = 0 5.5 ICC Quiescent Supply Current All Channels ON or OFF Test Conditions Vcc Typ TA = -40 to +85℃ Max Min Max 1.3 1.6 Unit V 0.9 1.2 V ±0.1 ±1 µA 2.0 +2.0 ±20 nA 4.0 +4.0 ±40 nA 1.2 1.8 2.0 Ω 0.6 0.9 1.0 0.1 0.2 0-5.5 µA Analog Signal Range ∆RON Rflat On Resistance Match Between Channels (Notes 2, 3, 4) On Resistance Flatness (Notes 2, 3, 5) IA = 100 mA, B0orB1= 1.5V IA = 100 nA, B0orB1= 3.5 V IA = 100 mA, B0orB1=0V, 0.75V, 1.5V IA = 100 mA, B0orB1 =0V, 1.0 V, 2.0 V 2.7 0.05 4.5 0.04 2.7 0.35 4.5 0.2 Ω 0.08 Ω 0.3 2. 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). 3. Parameter is characterized but not tested in production. 4. DRON = RON max − RON min measured at identical Vcc, temperature and voltage levels. 5. Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions. 3/8 Leshan Radio Co ., Ltd AC ELECTRICAL CHARACTERISTICS Vcc TA = +25℃ Min Symbol Parameter Test Conditions (v) tPHL tPLH Propagation Delay Bus to Bus (Note 6) VI = OPEN 2.7 4.5 tON Output Enable Time Turn On Time (A to Bn) B0 or B1 = 1.5 V, RL= 50 Ω, CL= 35 pF Bo or BI = 3.0 V, RL= 50 Ω, CL = 35 pF B0 or B1 = 1.5 V, RL= 50 Ω, CL= 35 pF Bo or BI = 3.0 V, RL= 50 Ω, CL = 35 pF B1=Vcc; B0=Vcc; S=0-Vcc RL=50 Ω, CL= 35 pF 2.7 12 15 20 4.5 9 10 15 2.7 10 10 15 4.5 6 8 10 2.7 4.5 tOFF Output Disable Time Turn Off Time (A Port to B Port) Typ TA = -40 to+ 85℃ Max Min Max Unit 2.0 0.3 ns ns 4 ns 4 ns 5 tBBM Break Before Make Time Q Charge Injection CL =1.0 nF, VGEN=0V RGEN = 0 2.7 4.5 26 48 pC OIRR Off Isolation (Note 7) RL=50 Ω f = 1.0 MHz 2.7 5.5 60 dB XtaLk Crosstalk RL=50 Ω f = 1.0 MHz 2.7 5.5 61 dB BW 3 dB Bandwidth VA=VCC*0.5+ac1, RL=RS=50ohm 2.7 5.5 84 80 MHz THD Total Harmonic Distortion RL =600 Ω VIS=0.5Vpp f = 20 Hz to 20 kHz 2.7 5.5 0.01 % 3 1 Figure # 5 2 2 1 3 2 6. This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance). 7.Off Isolation = 20 log10 [VA/VBn]. CAPACITANCE (Note 8) Symbol Parameter Test Conditions Typ CIN Select Pin Input Capacitance Vcc= 0V, f=1MHz 10 pF CIOB B Port Off Capacitance Vcc=4.5V, f=1MHz 25 pF CIOA(ON) A Port Capacitance when Switch is Enabled Vcc=4.5V, f=1MHz 87 pF Max Unit 8. TA = +25°C, f = 1 MHz, Capacitance is characteriz ed but not tested in production. 4/8 Leshan Radio Co ., Ltd TEST SETUP CIRCUITS 100mA V1 VCC LR1553 VB0 or VB1 VCC A 0.1uF VB1 or VB0 Ron=V1/ 100mA GND Figure1. Test Circuit for On Resister VCC DC=VCC/ 2 AC=1 50 ohm B0 or B1 LR1553 VCC A VOUT VCC 0.1uF 50 ohm S GND GND Figure2. Test Circuit for Bandwidth VCC DC=VCC/ 2 AC=1 50 ohm B0 or B1 LR1553 VCC A VOUT VCC 0.1uF 50 ohm S GND GND Figure3. Test Circuit for Off Isolation 5/8 Leshan Radio Co ., Ltd VCC B0 or B1 B1 or B0 LR1553 VCC A VOUT 50 ohm S VCC CL =35pF GND GND 50% VS 0.1uF 50% 90% 10% VOUT tON tOFF Test Circuit 4. Test Circuit for Switch Times VCC B1 or B0 B0 or B1 LR1553 VCC A VOUT 50ohm S 0.1uF CL =35pF GND GND VS VCC 50% VOUT tD Test Circuit 5. Test Circuit for Break-Before-Make Time Delay, tD 6/8 Leshan Radio Co ., Ltd PACKAGE OUTLINE DIMENSIONS (SOT363-6) SOT363-6 D e1 e E1 b A1 A2 A E θ 0.20 L C L1 7/8 Leshan Radio Co ., Ltd Symbol A A1 A2 b c D E E1 e e1 L L1 θ Dimensions in Millimeters Min Max 0.900 1.100 0.000 0.100 0.900 1.000 0.150 0.350 0.080 0.150 2.000 2.200 1.150 1.350 2.150 2.450 0.650TYP 1.200 1.400 0.525REF 0.260 0.460 0° 8° Dimensions in Inches Min Max 0.035 0.043 0.000 0.004 0.035 0.039 0.006 0.014 0.003 0.006 0.079 0.087 0.045 0.053 0.085 0.096 0.026TYP 0.047 0.055 0.021REF 0.010 0.018 0° 8° 8/8