SGM7228YWQ10G/TR

SGM7228 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch GENERAL DESCRIPTION FEATURES The SGM7228 is a high-speed, low-power double-pole/ z Low Cost double-throw (DPDT) analog switch that operates from a z RON is Typically 6Ω at 3.0V single 1.8V to 4.3V power supply. z Low Bit-to-Bit Skew: 50ps (TYP) z Voltage Operation: 1.8V to 4.3V z Fast Switching Times: SGM7228 is designed for the switching of high-speed USB 2.0 signals in handset and consumer applications, tON 10ns such as cell phones, digital cameras, and notebooks with hubs or controllers with limited USB I/Os. tOFF 22ns z Low Crosstalk: -40dB at 250MHz z Power-Off Protection when V＋ = 0V, channel-to-channel noise isolation, and is compatible with z High Off-Isolation: -35dB at 250MHz various standards, such as high-speed USB 2.0 (480 z Rail-to-Rail Input and Output Operation Mbps). Each switch is bidirectional and offers little or no z Break-Before-Make Switching attenuation of the high-speed signals at the outputs. Its z Extended Industrial Temperature Range: The SGM7228 has low bit-to-bit skew and high D+/D- Pins can Tolerate up to 5.25V bandwidth is wide enough to pass high-speed USB 2.0 differential signals (480 Mb/s) with good signal integrity. -40℃ to +85℃ z Small Package: WQFN-10 The SGM7228 contains special circuitry on the D+/Dpins which allows the device to withstand a VBUS short to BLOCK DIAGRAM D+ or D- when the USB devices are either powered off or powered on. HSD1+ SGM7228 is available WQFN-10 package. It operates D+ HSD2+ over an ambient temperature range of -40℃ to +85℃. APPLICATIONS HSD1DHSD2- Route Signals for USB 2.0 MP3 and Other Personal Media Players LOGIC Digital Cameras and Camcorders Portable Instrumentation Set-Top Box S OE PDAs SG Micro Limited www.sg-micro.com 1 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 ORDERING INFORMATION MODEL PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SGM7228 WQFN-10 -40℃ to +85℃ SGM7228YWQ10G/TR 7228 Tape and Reel, 3000 ABSOLUTE MAXIMUM RATINGS V+ to GND................................................................... 0V to 4.6V Analog, Digital voltage range .......................-0.3V to (V+) + 0.3V Continuous Current HSDn or Dn…….............................±100mA Peak Current HSDn or Dn…….......................................±150mA Operating Temperature Range............................-40℃ to +85℃ Junction Temperature....................................................... 150℃ Storage Temperature.........................................-65℃ to +150℃ Lead Temperature (soldering, 10s)...................................260℃ ESD Susceptibility HBM..................................................................................4000V MM......................................................................................400V Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. Please contact SGMICRO sales office to get the last datasheet. SG Micro Limited www.sg-micro.com 2 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 PIN CONFIGURATION (TOP VIEW) HSD1- HSD27 6 OE 8 5 D- V+ 9 4 GND S 10 3 D+ 1 2 HSD1+ HSD2+ WQFN-10 PIN DESCRIPTION PIN NAME 9 4 10 8 1, 2 7, 6 3, 5 V+ GND S OE HSD1+ , HSD2+ HSD1- , HSD2D+ , D- FUNCTION Power Supply Ground Select Input Output Enable Data Ports FUNCTION TABLE 0 HSD1+ HSD1ON HSD2+ HSD2OFF 0 1 OFF ON 1 × OFF OFF OE S 0 Switches Shown For Logic “0” Input SG Micro Limited www.sg-micro.com 3 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 ELECTRICAL CHARACTERISTICS (V+ = +1.8V to +4.3V, GND = 0V, VIH = +1.6V, VIL = +0.5V, TA = -40℃ to + 85℃. Typical values are at V+ = +3.3V, TA = +25℃, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP MIN -40℃ to +85℃ 0 TYP MAX UNITS ANALOG SWITCH Analog I/O Voltage VIS (HSD1+, HSD1-, HSD2+, HSD2-) On-Resistance RON On-Resistance Match Between ∆RON Channels On-Resistance Flatness RFLAT(ON) V+ = 3.0V, VIS = 0V to 0.4V, ID = 8mA, Test Circuit 1 V+ = 3.0V, VIS = 0V to 0.4V, ID = 8mA, +25℃ V+ 6 -40℃ to +85℃ 10 10.5 +25℃ 0.15 0.6 Test Circuit 1 -40℃ to +85℃ V+ = 3.0V, VIS = 0V to 1.0V, ID = 8mA, Test Circuit 1 -40℃ to +85℃ 2.6 1.6 +25℃ 1.5 2.0 V Ω Ω Ω Power Off Leakage Current (D+, D-) IOFF V+ = 0V, VD = 0V to 3.6 V, VS , V OE = 0V or 3.6 V -40℃ to +85℃ 1 µA Increase in I+ per Control Voltage ICCT V+ = 3.6V, VS or V OE = 2.6 V -40℃ to +85℃ 5 µA V+ = 3.6V, VIS = 3.3V/ 0.3V, VD = 0.3V/ 3.3V -40℃ to +85℃ 1 µA -40℃ to +85℃ 1 µA Source Off Leakage Current IHSD2(OFF) IHSD1(OFF) Channel On Leakage Current IHSD2(ON), IHSD1(ON) V+ = 3.6V, VIS = 3.3V/ 0.3V, VD = 3.3V/ 0.3V or floating DIGITAL INPUTS VIH -40℃ to +85℃ Input Low Voltage VIL -40℃ to +85℃ 0.5 V Input Leakage Current IIN V+ = 3.0V, VS , V OE = 0V or V+ -40℃ to +85℃ 1 µA Turn-On Time tON Turn-Off Time tOFF VIS = 0.8V, RL = 50Ω, CL = 10pF, Test Circuit 2 Input High Voltage 1.6 V DYNAMIC CHARACTERISTICS +25℃ 10 ns +25℃ 22 ns +25℃ 4 ns Break-Before-Make Time Delay tD VIS = 0.8V, RL = 50Ω, CL = 10pF, Test Circuit 3 Propagation Delay tPD RL = 50Ω, CL = 10pF +25℃ 0.3 ns +25℃ -35 dB Off Isolation OISO Signal = 0dBm, RL = 50Ω, f = 250MHz, Test Circuit 4 Channel-to-Channel Crosstalk XTALK Signal = 0dBm, RL = 50Ω, f = 250MHz, Test Circuit 5 +25℃ -40 dB –3dB Bandwidth BW Signal = 0dBm, RL = 50Ω, CL = 5pF Test Circuit 6 +25℃ 550 MHz Channel-to-Channel Skew tSKEW RL = 50Ω, CL = 10pF +25℃ 0.05 ns VG = GND, CL = 1.0nF, RG = 0Ω, Q = CL x VOUT, Test Circuit 7 +25℃ 11 pC CON +25℃ 7 pF Power Supply Range V+ -40℃ to +85℃ Power Supply Current I+ Charge Injection Select Input to Common I/O HSD+, HSD-, D+, DON Capacitance Q POWER REQUIREMENTS SG Micro Limited www.sg-micro.com V+ = 3.0V, VS , V OE = 0V or V+ -40℃ to +85℃ 1.8 4.3 V 1 µA 4 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 TEST CIRCUITS 8mA V1 HSDn Dn RON = V1/8mA GND Test Circuit 1. On Resistance V+ V+ HSD1n 50% 50% Dn HSD2n VOUT 0.1µF VOH RL VS 90% 90% CL VOL GND tOFF tON Test Circuit 2. Switching Times (tON, tOFF) V+ HSD1n V+ VS Dn HSD2n VOUT 0.1µF RL VS GND CL 50% 0 90% of VOH VOUT 0 tD Test Circuit 3. Break-Before-Make Time (tD) SG Micro Limited www.sg-micro.com 5 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 TEST CIRCUITS (Cont.) V+ 0.1µF V+ HSD1n Dn VOUT HSD2n Source Signal RL S GND Test Circuit 4. Off Isolation V+ 0.1µF V+ HSDn Dn RL Source Signal N.C. HSDn Dn VOUT RL S GND Channel To Channel Crosstalk = -20 × log VHSDn VOUT Test Circuit 5. Channel-to-Channel Crosstalk SG Micro Limited www.sg-micro.com 6 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 TEST CIRCUITS (Cont.) 0.1μF V+ V+ HSDn Source Signal Dn VOUT RL S CL GND Test Circuit 6. -3dB Bandwidth V+ HSD1n RG VG 0 Dn VOUT HSD2n CL S ΔOUT VOUT GND Q = ΔVOUT × CL Test Circuit 7. Charge Injection (Q) SG Micro Limited www.sg-micro.com 7 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 APPLICATION NOTES: Meeting USB 2.0 VBUS Short Requirements In section 7.1.1 of the USB 2.0 specification, it notes that USB devices must be able to withstand a VBUS short to D+ or D- when the USB devices is either powered off or powered on The SGM7228 can be successfully configured to meet both these requirements. Power-Off Protection For a VBUS short circuit the switch is expected to withstand such a condition for at least 24 hours. The SGM7228 has specially designed circuitry which prevents unintended signal bleed through as well as guaranteed system reliability during a power-down, over-voltage condition. The protection has been added to the common pins (D+, D-). SG Micro Limited www.sg-micro.com Power-On Protection The USB 2.0 specification also notes that the USB device should be capable of withstanding a VBUS short during transmission of data. This modification works by limiting current flow back into the V+ rail during the over-voltage event so current remains within the safe operating range. In this application, the switch passes the full 5.25V input signal through to the selected output, while maintaining specified off isolation on the un-selected pins. 8 Low Cost, High Speed USB 2.0 (480Mbps) DPDT Analog Switch SGM7228 PACKAGE OUTLINE DIMENSIONS WQFN-10 1.800± 0.050 0.500± 0.050 0.400± 0.050 0.400 TYP PIN #1 IDENTIFICATION CHAMFER 0.350×45° (×9) 1.400± 0.050 PIN #1 DOT BY MARKING 0.800 REF 0.500± 0.050 0.200± 0.050 TOP VIEW 0.100± 0.050 BOTTOM VIEW 0.750± 0.050 0.203 REF 0.000-0.050 SIDE VIEW NOTE: All linear dimensions are in millimeters. SG Micro Limited www.sg-micro.com 9