BL3257 4 Channel 2:1 Switch BL3257 Description Applications • Set Top Boxes BL3257 is a quad single pole/double throw high-speed CMOS TTL-compatible • Flat Panel Displays bus switch. The low on resistance of the • CRT Displays switch allows inputs to be connected to • DVD-RW outputs without adding propagation delay Features or generating additional ground bounce 1、VCC：4.0V-5.5V noise. Also this device has exceptionally 2、Low On-Resistance: 5Ω high current capability, which is far greater than most analog 3、Fast switching: 10.0ns (VDD=5V) switches 4、Low crosstalk: -70dB (VDD = 5V) offered today. A single 5V supply is all 6、Packaging(Pb-free & Green Available): that is required for operation. SOP-16 、SSOP-16 6、ESD：>4000V HBM Pin Configuration Block Diagram IN VDD S1A EN S1A 2 S2A 3 S1B 5 6 S2A S1D S2B DA S2D S1B DD S1C 11 S2C 10 S2B S1C DB S2C 4 DA 7 DB 9 DC S1D 14 12 DD S2D 13 DECODER/ DRIVERS GND http://www.belling.com.cn DC -1- 1 IN 15 EN Total 7 Pages BL3257 Order Information Part Number Package BL3257SO BL3257SS SOP16 SSOP16 shipping Tube 5000 pcs / Tape & Reel Pin Description Pin Name VDD Description Power GND Ground DA, DB, DC, DD Analog Video I/O Analog Video 1 I/O S1A, S1B, S1C, S1D S2A, S2B, S2C, S2D Analog Video 2 I/O IN Select Input ENN Enable Function Table ENN S ON SWITCH 0 1 S2 (S2A, S2B, S2C, S2D) 0 0 S1 (S1A, S1B, S1C, S1D) 1 X Disabled http://www.belling.com.cn -2- Total 7 Pages BL3257 ELECTRICAL CHARACTERISTICS 1 ABSOLUTE MAXIMUM RATINGS Parameter Symbol VDD VIS VS VENN lanll Units Supply Voltage Analog Input Voltage (V S1, VS2, or VD) Digital Select Input Voltage Continuous DC Current from D to S1/S2 -0.5 to +6.0 -0.5 to +6.0 -0.5 to +6.0 ±200 V V V mA Maximum ratings are those values beyond which device damage can occur. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 2 RECOMMENDED OPERATING CONDITIONS Parameter Symbol VDD VIS VS VENN TA 3 Supply Voltage Analog Input Voltage (V S1, VS2, or VD) Digital Select Input Voltage Operating Temperature MIN 4.0 0 0 -40 Units MAX 5.5 2 VDD 85 V V V ℃ ELECTRICAL CHARACTERISTICS Typ Max Units VDD = 4.5V, VIS = 1.0V, RL = 75Ω, IIS = 13mA 5 7 Ω RON VDD = 4.5V, VIS = 2.0V, RL = 75Ω, IIS = 26mA 7.5 10 Ω VIH Guaranteed Logic HIGH Level 2.0 VIL Guaranteed Logic LOW Level -0.5 Input high current IIH Input low current Parameter Symbol Test Conditions Min DC ELECTRICAL CHARACTERISTICS Switch On Resistance HIGH Level Input Voltage LOW Level Input Voltage Switch output leakage current Switch short circuit current Clamping diode voltage Input hysteresis http://www.belling.com.cn V 0.8 V VDD = 5.5V, VIN = VDD ±1 μA IIL VDD = S.5V, VIN = GND ±1 μA Io 0 ≤ S1, S2, or D ≤ VDD, Switch OFF ±1 μA Ios VIK VDD = 4.5V, IIN= -18mA VH -3- 230 mA -0.9 V 200 mV Total 7 Pages BL3257 AC ELECTRICAL CHARACTERISTICS Turn on time TON RL = 70Ω, CL = 20pF 8 15 ns Turn off time TOFF RL = 70Ω, CL = 20pF 4 8 ns Cross talk XTALK RIN = 10Ω, RL = 150Ω, f = 10MHz -70 dB CIN VIN = 0V, f = 1MHz 5 pF COFF VIN = 0V, f = 1MHz 10 pF CON VIN = 0V, f = 1MHz 15 pF Enable input capacitance Off state input capacitance On state input capacitance POWER SUPPLY CHARACTERISTICS Quiescent supply current Supply current change when changing input Supply current when toggle input IDD VDD = +5.5V, IN = GND or 5V Δ IDD VDD = +5.5V, IN = 3.4V IDDD http://www.belling.com.cn 0.1 VDD = +5.5V, S1, S2 and D Pins Open ENN = GND Control Input Toggling 50% Duty Cycle -4- 10.0 μA 300 μA mA/ 0.1 Total 7 Pages MHz BL3257 TEST SETUP CIRCUITS Figure1. Test Circuit for On Resistance Figure2. Test Circuit for Bandwidth http://www.belling.com.cn -5- Total 7 Pages BL3257 PACKAGE OUTLINE DIMENSIONS SOP16 http://www.belling.com.cn -6- Total 7 Pages BL3257 SSOP16 http://www.belling.com.cn -7- Total 7 Pages