PRODUCTION DATA SHEET

Transcription

1 The LX70 is an integrated Universal Serial Bus () line termination device with an EMI filter and ESD protection diodes. This device offers a cost effective and compact solution for one upstream port. The specification requires line termination resistors on both the and lines. These resistors ensure signal integrity by matching the cable impedance to that of the differential driver. The 1. kω pull-up resistor identifies the appropriate data line for full speed or low speed operation. DESRIPTION The 7 pf capacitor completes the high frequency filter and controls the edge rate of the signals The LX70 protects both and data lines and the voltage bus ESD. The TVS protection diodes exceed the requirements of IE , level, 1kV (air discharge) and 8kV (contact discharge).the integrated configuration of the LX70 minimizes board space and allows for ideal placement near the. The LX70 is ideal for use in hubs, peripherals and portable appliances IMPORTANT: For the most current data, consult MIROSEMI s website: PAKAGE ORDER INFO SM Plastic Package Tape & Reel Quantity T 6-Pin S70 J ( ) Marking (Reel Size) RoHS ompliant / Pb-free Transition D: 00-0 to 1 LX70-1ISM 1 K (7inches) -0 to 1 LX70-ISM D in 1.K D in Note: Append the letters TR to the part number for Tape & Reel Ordering. Rs Rs EDGE EDGE ircuit Diagram PRODUT HIGHLIGHT D out D out KEY FEATURES Small S70-6L Package Bi-directional EMI/RFI low-pass filter Line termination with integrated ESD protection Low TVS operating voltage (.V) Low leakage current Integrated single die construction rosses From Semtech STF0 APPLIATIONS 1.1 and.0 Full Speed ompliant Peripherals omputers and Printers Mobile phones Pagers and PDA s Digital ameras BENEFITS Filter response characterized up to 6 GHz <db insertion loss in the pass band >0dB attenuation in the MHz range >1dB attenuation in the WLAN frequencies of.ghz and GHz R S? Functional Schematic with PinOut LX70 opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page 1

2 ABSOLUTE MAXIMUM RATINGS PAKAGE PIN OUT Steady State Power...100mW ESD Air Discharge per IE kV ESD ontact Discharge per IE kV Peak Package Solder Reflow Temperature (0 second maximum exposure) (+0, -) Operating Temperature...-0 to +1 Storage Temperature Range...-6 to +10 Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. urrents are positive into, negative out of specified terminal. SM Plastic 6-Pin S70 THERMAL DATA THERMAL RESISTANE-JUNTION TO ASE, θ J THERMAL RESISTANE-JUNTION TO AMBIENT, θ JA 119 /W 1 /W Junction Temperature alculation: T J = T A + (P D x θ JA ). The θ JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. Name VBUS DIN DOUT Bus Voltage Data In Ground Data Out FUNTIONAL PIN DESRIPTION Description ELETRIAL HARATERISTIS 1 6 SM PAKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish Unless otherwise specified, the following specifications apply over the operating ambient temperature -0 T A +1 except where otherwise noted. Parameter Symbol Test onditions LX70 Min Typ Max Units Stand-Off Voltage VR WM. V Breakdown Voltage V BR IR = 1mA 6 V Leakage urrent I R VRWM =.V, T = 1 µa Series Resistance (-1) Each Line Ω Series Resistance (-) Each Line Ω Temperature oefficient of T OEFF Each Line 00 ppm Pull Up Resistance Each Line K Ω apacitor EDGE Each Line 7 pf Total apacitance TOT Between I/O Pins and Ground, Each Device VR = 0V, f = 1MHz pf ELETRIALS opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page

3 APPLIATION IRUITS Host or Hub (downstream port) 6 LX701 R PD R PD 1 The LX70 meets the requirements of the v1.1 and.0 Full Speed specification for device termination, EMI filtering and ESD protection. The resistor provides the proper signal termination; the EDGE capacitor controls the signal rise and fall slew; the TVS diodes protect the I ESD damage; and the total capacitance and resistance creates a low pass filter eliminating the high frequency energy the circuit. The LX70 can configure the upstream port for either Full-Speed or Low-Speed operation. The figures below show the proper connection in accordance with the specification. Host cable Peripheral (upstream port) Figure 1 Typical Application APPLIATION INFORMATION LX70 FULL SPEED DEVIE (FIGURE ) The.0 specification offers a 1 Mbps data transfer rate known as Full-Speed which requires a 1. kω pull-up resistor to be connected to the line. Slew rate control is accomplished with EDGE attached to the transceiver before the. Voltage Supply (Vbus) is connected to Pin Ground is connected to Pin the is routed to Pin 1 (1. kω pull-up resistor) and Pin 6 to the line of the the is routed to Pin and Pin to the line of the LX70 Figure onnection for Full Speed Operation Peripheral APPLIATIONS opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page

4 APPLIATION INFORMATION (ONTINUED) LOW SPEED DEVIE (FIGURE ) The v1.1 specification offers a 1. Mbps data transfer rate known as Low-Speed which requires a 1. kω pull-up resistor to be connected to the line. Slew rate control is accomplished with EDGE attached to the transceiver before the. Host cable Voltage Supply (Vbus) is connected to Pin Ground is connected to Pin the is routed to Pin and Pin to the line of the the is routed to Pin 1 (1. kω pull-up resistor) and Pin 6 to the line of the LX70 Figure onnection for Low Speed Operation ELETROMAGNETI EMISSION AND SUSEPTABILITY F Part 1 sets limits for maximum allowable EM emission and susceptibility. There are two types of emissions. onducted emissions with frequency of emission of 0. to 0 MHz and radiated emissions with frequency of emission of 0 MHz to 0 GHz. All digital computing devices including the peripheral devices must comply. Examples of peripheral devices include terminals, printers, external floppy disk drives and other data storage Peripheral devices, video monitors, keyboards, control cards, interface boards, external memory expansion cards and other input/output devices that may or may not contain digital circuitry. LX70 is optimized to minimize the radiated EMI which is the primary concern in devices using. Refer to the typical filter response curve for the attenuation characteristics of LX70 over the frequency range of 0kHz to 6GHz. APPLIATIONS opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page

5 8KV ontact ESD.0VΩ 0.0ns Figure 8KV ESD input pulse as per IE Vertical scale is equivalent to A/div. H1 S1 LOG START MHz db / REF 0 db M HARATERISTI URVES STOP MHz Figure 6 Frequency response curve. Low insertion loss in the pass band and -0dB attenuation at MHz. Better than -10dB attenuation at the WLAN frequencies of. and GHz. 1 h1.0vω M 0.0ns Figure lamping haracteristics when device subjected to an 8 KV ESD pulse. H1 S1 LOG 0dB / REF 0 db START MHz STOP MHz Figure 7 Analog rosstalk between the two datalines and GRAPHS opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page

6 SM 6 Pin Plastic S70 A I D Recommended Footprint X (ref) B E H E (ref) D (ref) F PAKAGE DIMENSIONS Y J K G MILLIMETERS INHES Dim MIN MAX MIN MAX A B D E 0.6 BS 0.06 BS F G H I J K Note: 1. Dimensions do not include mold flash or protrusions; these shall not exceed 0.1mm(.006 ) on any side. Lead dimension shall not include solder coverage. MILLIMETERS INHES Dim MIN MAX MIN MAX D E X Y MEHANIALS opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page 6

7 NOTES NOTES PRODUTION DATA Information contained in this document is proprietary to and is current as of publication date. This document may not be modified in any way without the express written consent of. Product processing does not necessarily include testing of all parameters. reserves the right to change the configuration and performance of the product and to discontinue product at any time. opyright 00 Rev. 1.1d, Western Avenue, Garden Grove, A. 981, , Fax: Page 7