BL4684C BELLING | Alldatasheet
Document overview
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- PDF pages: 7
Technical content
Features
/circle6 Wide Power Supply Range:1.65V to 5.5V /circle6 Low On-Resistance: R ON(NC) = 0.4Ω(VCC=2.7V) R ON(NO) = 0.5 Ω(VCC=2.7V) /circle6 Low On-Resistance Flatness: R ONF(NC) = 0.15 Ω max (VCC=2.7V) R ONF(NO) = 0.25 Ω max (VCC=2.7V) /circle6 Rail-to-Rail Signal Range /circle6 High Off-Isolation: -60dB (f=100 kHz) /circle6 Crosstalk Rejection: -67dB /circle6 Low Total Harmonic Distortion: 0.05% /circle6 Lead(Pb) Free CSP-10 Packaging
Applications
/circle6 Wireless Handsets /circle6 MP3 Players /circle6 Portable Electronic Devices /circle6 Relay Replacement /circle6 PDAs /circle6 Audio & Video Signal Routing /circle6 PCMCIA Cards /circle6 Computer Peripherals /circle6 Modems Pin Configuration
Description
The BL4684C is a Dual Wide-Bandwidth, fast single- pole double-throw (SPDT) CMOS switch featuring an On-Resistance of 0.4 ohm at V DD =2.7V and wide power supply range from 1.65V to5.5V. It can be used as an analog switch or as a low-delay bus switch. Break-before-make function for both parts eliminates signal disruption during switching from preventing both switches being enabled simultaneously. Block Diagram B2 NO2 COM2 IN2 NC2 GND VCC NO1 COM1 IN1 NC1 Function Table IN X Function
0 NC X Connected to COM X
1 NO X Connected to COM X
COMx Input/Output Data Port NCx Input/Output Data Port NOx Input/Output Data Port IN X Input Logic Control Signal ** X = 1or 2
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 2 - Total 7 Pages ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Units DC Supply Voltage V CC -0.5 7 V DC Switch Voltage V NCX / V NOX / V COMX -0.5 V SUP + 0.3 V DC Input Voltage V INX -0.5 7 V Continuous Current I (NCX/NOX/COMX) -500 +500 mA Peak Current (1) I PEAK(NCX/NOX/COMX) -650 +650 mA Storage Temperature Range T STG -65 150 ℃ Notes: (1) Pulsed at 1ms, 50% duty circle (2) Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. (3) Control input(V INX ) must be held HIGH or LOW, and mustn’t be floated. RECOMMENDED OPERATING CONDITIONS DC Supply Voltage (V Bump Temperature(Soldering)
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 3 - Total 7 Pages DC ELECTRICAL CHARACTERISTICS ＠＠ ＠＠ +3V Supply Guaranteed Limit Parameter Symbol Conditions Min. Typ. (1) Max. Unit Analog Switch Analog Signal Range VNOX /V NCX / VCOMX
0 VCC V
NC On-Resistance R ON(NC) VCC = 2.7V; ICOM =100mA ; V NC = 0 to V CC 0.4 0.5 Ω NO On-Resistance R ON(NO) VCC = 2.7V; I COM =100mA ; V NO = 0 to V CC 0.5 0.6 Ω NC On-Resistance Flatness (2) R FLAT(NC) VCC = 2.7V; I COM =100mA ; V NC = 0 to V CC 0.15 Ω NO On-Resistance Flatness (2) R FLAT(NO) VCC = 2.7V; I COM =100mA ; V NO = 0 to V CC 0.25 Ω On-Resistance Match Between Channels (3) △R ON V CC = 2.7V; I COM =100mA ; VNC /VNO =1.5 0.01 0.06 Ω NC or NO Off Leakage Current IOFF(NC) or IOFF(NO) VCC = 3.3V; VNO or V NC = 3V, 0.3V; VCOM = 0.3V, 3 V -80 +80 nA COM On Leakage Current I ON(COM) VCC = 3.3V; V NO or V NC = 3V, 0.3V; VCOM = 0.3V, 3 V or floating -160 160 nA Digital I/O Input Voltage High V IH Minimum High Level Input Voltage 1.3 V Input Voltage Low V IL Maximum Low Level Input Voltage 0.6 V Input Hysteresis I H V CC = 3.3V 200 mV Input Leakage Current I IN V IN = 0 or Vcc -1 1 uA Note: (1) Typical characteristics are at +3V supply and +25° C (2) Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal ranges. (3) △R ON = R ON(MAX) - R ON(MIN) , between NC1 and NC2 or between NO1 and NO2.
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 4 - Total 7 Pages DYNAMIC CHARACTERISTICS Guaranteed Limit Parameter Symbol Conditions Min. Typ. (1) Max. Unit AC ELECTRICAL CHARACTERISTICS Turn-On Time t ON VCC = 2.7V; V NO or V NC = 1.5V, R L = 50 Ω; C L = 35pF, Figure1 25 60 ns Turn-Off Time t OFF VCC = 2.7V; V NO or V NC = 1.5V, R L = 50 Ω; C L = 35pF, Figure1 8 20 ns Break-Before-Make Time tBBM VCC = 2.7V; V NO or V NC = 1.5V, R L = 50 Ω; C L = 35pF, Figure2 22 ns NC OFF Capacitance C OFF(NC) f = 1MHz, Figure6 84 pF NO OFF Capacitance C OFF(NO) f = 1MHz, Figure6 66 pF NC ON Capacitance C ON(NC) f = 1MHz, Figure7 245 pF NO ON Capacitance C ON(NO) f = 1MHz, Figure7 235 pF ADDITIONAL APPLICATION CHARACTERISTICS 3dB Bandwidth f 3dB Figure8 27 MHz Charge Injection Q VGEN = 0V; R GEN = 0 Ω; C L = 1nF; Figure3 30 pC Off Isolation (2) V Iso f = 100kHz; R L = 50 Ω; C L = 5pF; V COM = 1 V RMS ; Figure4 -60 dB Crosstalk (3) V CT f = 100kHz; R L = 50 Ω; C L = 5pF; V COM = 1 V RMS ; Figure5 -67 dB Total Harmonic Distortion THD VCC = 3.3V; R L = 32 Ω; V IN = 2V P-P; 0.06 % Supply Power Supply Range V cc 1.65 5.5 V Maximum Quiescent Supply Current I cc V CC = 5.5V; VIN = V CC or 0 200 nA Note: (1) Typical characteristics are at +3V supply and 25° C (2) Off Channel Isolation = 20log 10 [(V NO\\NC )/V COM ] (3) Between any two switches
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 5 - Total 7 Pages TEST SETUP CIRCUITS Figure1. AC Test Circuit & Waveforms MOS%Switch Vin NC Vout NO COM RL=50Ω %%%C L=%35pF RL CL A VCC GND Input%Logic Switch% Output VIH VIL Off On 50% 90%%Vout Logic% Input Vout tBBM Figure2. Break-Before-Make Time (t BBM ) Figure3. Charge Injection (Q)
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 6 - Total 7 Pages Figure4. Off Isolation (V ISO ) Figure5. Cross Talk (V CT ) Figure6. Channel Off Capacitance(C OFF(NX) ) Figure7. Channel On Capacitance(C ON(NX) ) Figure8. -3dB Bandwidth (f 3dB )
BL4684C--Dual SPDT Analog Switch http://www.belling.com.cn - 7 - Total 7 Pages PACKAGE OUTLINE DIMENSIONS (CSP-10)