BL1554--Quad SPDT Analog Switch Low Voltage 0.4Ω Quad SPDT Analog Switch Description Features Wide Power Supply Range:1.6V to 4.2V Low On-Resistance: 0.4Ω (VDD=2.7V) Low On-Resistance Flatness -3dB BandWidth: 42 MHz Fast Switching Speed(VDD=3.3V): The BL1554 is a quad single-pole double-throw (SPDT) CMOS switch featuring an On-Resistance of 0.4 ohm at VDD=2.7V and wide power supply range from 1.6V to 4.2V. It can be used as an analog switch or low-delay bus switch. tON: 20ns Block Diagram tOFF: 10ns NC1 IDD = 300nA @ TA = +25°C High Off Isolation: -65dB Crosstalk Rejection: -65dB Lead(Pb) Free TQFN-16 Package(3mmx3mm) COM1 NO1 A0 COM2 NO2 NC2 Applications Wireless Handsets Portable electronic devices PDAs Audio & Video Switching PCMCIA Cards Computer Peripherals Modems NC3 COM3 A1 COM4 16 Function Table NO1 VDD NC4 15 14 13 A0 11 10 9 5 NC2 6 7 GND NO3 Top View In Function 0 NC1(NC2) connect to COM1 (COM2) 1 NO1(NO2) connect to COM1 (COM2) 0 NC3(NC3) connect to COM3 (COM4) 1 NC3(NC3) connect to COM3 (COM4) Pin Description NC3 NO2 BL 1554 SSSSS A1 A1 4 12 NO4 3 COM2 1 COM4 NC1 A0 2 NO4 NC4 Pin Configuration COM1 NO3 8 COM3 ** “SSSSS” STANDS FOR THE LOT NO. NO. Pin Name Type Description VDD PWR Power Supply GND Ground Ground COMx Input/Output Data Port NCx Input/Output Data Port NOx Input/Output Data Port Ay Input Logic Control Signal x = 1, 2, 3 or 4; y = 0 or 1 http://www.belling.com.cn -1- Total 1 Pages BL1554--Quad SPDT Analog Switch ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Units DC Supply Voltage VDD 1.5 4.6 V Signals on NC VNCX -0.5 VSUP + 0.3 V Signals on NO VNOX -0.5 VSUP + 0.3 V Signals On COM VCOM -0.5 VSUP + 0.3 V Peak Current(1)（VNC+VNO） IPEAK -500 +500 mA Notes: (1): Pulsed at 1ms, 10% duty circle ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions VDD Guaranteed Limit Min. Typ.(1) Max. Unit DC ELECTRICAL CHARACTERISTICS (Analog Section) Input Signal Range On Resistance (2) VAN (2) On Resistance Flatness RON (2, 3) On Resistance Match Between Channels (2, 4) NC or NO Off Leakage Current COM On Leakage Current RFLAT △RON INC(OFF) or INO(OFF) ICOM(ON) 0 VDD 4.0 0.4 0.6 2.7 0.4 0.6 ICOM =100mA ; VIN = 0.8V to 4.0 0.08 0.12 2.0V 2.7 0.08 0.12 4.0 0.08 0.09 2.7 0.08 0.09 ICOM =100mA ; VIN = 1.5V ICOM =100mA ; VIN = 1.5V 4.2 -500 500 3.6 -400 400 4.2 -500 500 3.6 -400 400 Minimum High Level Input 4.2 1.6 Voltage 3.3 1.3 Maximum Low Level Input 4.2 0.7 Voltage 3.3 0.5 VNO or VNC = 0.3V, 3.3V VCOMX = 0.3V, 3.3V V Ω Ω Ω nA nA DC ELECTRICAL CHARACTERISTICS (Digital Section) Input High Voltage VIH Input Low Voltage VIL Input Current (High Level) IAH VA = 1.4V，Others = 0.5V Input Current (Low Level) IAL VA = 0.5V，Others = 1.4V V 4.2 -1 1 3.3 -1 1 4.2 -1 1 3.3 -1 1 Note: (1). Typical characteristics are at 25°C (2). Guaranteed by design. Resistance measurement do not include test circuit or package resistance (3). Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal ranges. (4). △RON= RON(MAX) - RON(MIN) between channels http://www.belling.com.cn -2- Total 2 Pages V uA uA BL1554--Quad SPDT Analog Switch ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions VDD Guaranteed Limit Min. Typ. (1) Max. Unit AC ELECTRICAL CHARACTERISTICS 4.2 20 25 3.3 20 25 4.2 10 15 3.3 10 15 4.2 13 16 3.3 13 16 4.2 50 3.3 50 4.2 135 3.3 135 VIN Centered Between VDD and 4.2 42 GND 3.3 42 4.2 100 3.3 100 4.2 -65 3.3 -65 4.2 -65 3.3 -65 Turn On Time tON VCOM = 2V; RL = 50Ω; CL = 35pF Turn Off Time tOFF VCOM = 2V; RL = 50Ω; CL = 35pF Break Before Make Time tBBM VIN = 1.5V; RL = 50Ω; CL = 35pF NC/NO OFF Capacitance CNC(OFF) or NC/NO ON Capacitance CNO(OFF) CNC(ON) or CNO(ON) f = 1MHz , f = 1MHz , ns ns ns pF pF ADDITIONAL APPLICATION CHARACTERISTICS f3dB 3dB Bandwidth Charge Injection Select Q VGEN = 0V; RGEN = 0Ω; CL = 1nF VISO f = 100kHz; RL = 50Ω VCT f = 100kHz; RL = 50Ω (2) Input to Common I/O Off Isolation (3) Cross Talk Between Two Switches (4) MHz pC dB dB Supply Power Supply Range VDD Maximum Quiescent Supply Current IDD 1.5 VA = VDD or GND 4.2 4.4 V 1.5 uA Note: (1). Typical characteristics are at 25°C (2). Guaranteed by design. (3). Off Channel Isolation = 20log10 [(VNO\NC)/VCOM] (4). Between any two switches http://www.belling.com.cn -3- Total 3 Pages BL1554--Quad SPDT Analog Switch TEST SETUP CIRCUITS VCC Vin t r = tf < 5ns MOS Switch Nx Vout COM Unused Nx VIH RL CL Logic Input Off On 50% VIL Switch Output R L=50Ω C L= 35pF A Vout 90% 0V Input Logic tOFF tON GND Fig.1 AC Test Circuit & Waveforms VCC Vin MOS Switch NC Vout COM VIH NO C L Logic Input RL Off 50% On VIL Vout RL=50Ω CL = 35pF A 90% Vout Switch Output Input Logic tBBM GND Fig.2 Break Before Make Time (tBBM) VCC R GEN MOS Switch NCx COMx NOx Vout Q = △Vout * CL C L = 1nF V GEN Logic Input VIH Off Switch Output Vout A On VIL △Vout Input Logic GND Fig.3 Charge Injection Select Input to Common I/O (Q) http://www.belling.com.cn -4- Total 4 Pages BL1554--Quad SPDT Analog Switch TEST SETUP CIRCUITS VCC VCC MOS Switch 50 Ω COMx Analyze r 10nF 10nF 50 Ω Nx NC Signal Generator Signal Generator Analyzer RL =50Ω CL= 35pF Input 0V( Test NO ) or VIH ( Test NC ) NO 50 Ω RL CL A RL =50Ω CL= 35pF GND Fig.4 Off Isolation (VISO) GND Fig.5 Cross Talk (VCT) VCC VCC 10nF MOS Switch MOS Switch Capacitance Meter f = 1 MHz A 10nF COM Capacitance Meter f = 1 MHz COMx CL RL A MOS Switch Input 0V or VIH A Input 0V or VIH Nx GND GND Fig.6 Channel Off Capacitance(CNX(OFF)) Fig.7 Channel On Capacitance(CNX(ON)) VCC 10nF 50 Ω MOS Switch COMx Analyzer Nx 50 Ω Signal Generator A Input 0V or V IH GND Fig.8 -3dB Bandwidth (f3dB) http://www.belling.com.cn -5- Total 5 Pages BL1554--Quad SPDT Analog Switch PACKAGE OUTLINE DIMENSIONS 16L DFN 3X3 mm PIN 1 DOT BY MARKING A1 E A1 A3 A D SIDE VIEW TOP VIEW D2 PIN #1 IDENTIFICATION CHAMFER E2 COMMON DIMENSIONS (MM) W: VERY VERY THIN REF. MIN. NOM. MAX. A 0.70 0.75 0.80 A1 0.00 0.2 REF. 0.05 D 2.95 3.00 3.05 E 2.95 3.00 3.05 b 0.18 0.25 0.30 L 0.30 0.40 0.50 D2 1.55 1.70 1.80 E2 1.55 1.70 0.5 BSC 1.80 A3 L b e PKG. BOTTOM VIEW e http://www.belling.com.cn -6- Total 6 Pages