PACUSB-U1/U2/U3 Upstream USB Port Terminator Features Product Description • The PACUSB-U1, PACUSB-U2, and PACUSB-U3 are single-channel USB upstream-port termination networks. • • • One upstream USB port terminator, EMI filter and transient overvoltage protector in a single surfacemount package Compact SC70 or SOT23 package saves board space and lowers manufacturing costs compared to discrete solutions ESD protection to 30kV contact discharge per MIL-STD-883D, method 3015 ESD protection to 15kV contact discharge per IEC 61000-4-2 international standard Applications • • • • • • • The PACUSB-U1/U2/U3 integrate EMI/RFI filter components R1 and C1, as recommended by the USB specification. Because these are upstream USB devices, they are terminated with a single 1.5kΩ pull-up resistor to V3.3 (R2). There are three options for the value of the series resistor R1: • For PACUSB-U1, R1=12Ω • For PACUSB-U2, R1=33Ω • For PACUSB-U3, R1=22Ω This series resistance plus the USB driver output resistance must be close to the USB cable’s characteristic impedance of 45Ω (90Ω balanced) to minimize transmission line reflections. ESD protection and termination of USB port All USB peripherals (PC printers, scanners, zip drives, etc.) PDAs / handheld PCs Digital cameras Wireless Handets MP3 Players Cable Modems In addition, these parts provide a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The input and output pins are designed and characterized to dissipate ESD strikes of 15kV safely, a level well beyond the maximum requirements of the IEC 61000-4-2 international standard. Using the MIL-STD-883D (Method 3015) specification for Human Body Model (HBM) ESD, all pins are protected for contact discharges to greater than 30kV. Electrical Schematic D1_i IN1 R1 1 D1_c1 OUT R2 C1 GND GND 6 2 5 V3.3 Vcc C1 D2_i IN2 3 R1 4 D2_c2 OUT © 2003 California Micro Devices Corp. All rights reserved. 11/17/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 C0160997D ▲ Fax: 408.263.7846 ▲ www.calmicro.com 1 PACUSB-U1/U2/U3 PACKAGE / PINOUT DIAGRAMS GND 2 D2_i 3 6 D1_c D1_i 1 5 V3.3 GND 2 4 D2_c D2_i 3 6-pin SC70 UUxY 1 UUx D1_i 6 D1_c 5 V3.3 4 D2_c 6-pin SOT23 Note: Drawings are not to scale. PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 D1_i The USB Controller side of the D+ or D- bidirectional transmission line of the differential pair defined by USB standards. 2 GND The ground reference for the PACUSB-U1/U2/U3 device. 3 D2_i The USB Controller side of the D- or D+ bidirectional transmission line of the differential pair defined by USB standards. 4 D2_c The connector side of the D- or D+ bidirectional transmission line of the differential pair defined by USB standards. 5 V3.3 The 3.3V supply voltage for the PACUSB-U1/U2/U3 device. 6 D1_c The connector side of the D+ or D- bidirectional transmission line of the differential pair defined by USB standards. Ordering Information STANDARD VALUES Part Designator R1 Value (Ω) PACUSB-U1 12 PACUSB-U2 33 PACUSB-U3 22 © 2003 California Micro Devices Corp. All rights reserved. 2 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 11/17/03 PACUSB-U1/U2/U3 Ordering Information (continued) PART NUMBERING INFORMATION Package Ordering Part Number1 R1 Value (Ω) Pins Part Marking 12 6 SC70-6 PACUSBU1 UU1 12 6 SOT23-6 PACUSBU1Y6 UU1Y 33 6 SC70-6 PACUSBU2 UU2 33 6 SOT23-6 PACUSBU2Y6 UU2Y 22 6 SC70-6 PACUSBU3 UU3 22 6 SOT23-6 PACUSBU3Y6 UU3Y Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS 5.5 V Operating Temperature Range -40 to +85 °C Storage Temperature Range -65 to +150 °C DC Power to Resistor 100 mW Package Power 200 mW RATING UNITS 3.3 V -40 to +85 °C V3.3 (Supply Voltage) STANDARD OPERATING CONDITIONS PARAMETER V3.3 (Supply Voltage) Ambient Operating Temperature © 2003 California Micro Devices Corp. All rights reserved. 11/17/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 3 PACUSB-U1/U2/U3 Specifications (continued) ELECTRICAL OPERATING CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS R1 Resistance R1 (PACUSB-U1 only) R1 Resistance R1 (PACUSB-U2 only) Measured at 25°C 10 12 14 Ω Measured at 25°C 26 33 40 Ω R1 Resistance R1 (PACUSB-U3 only) Measured at 25°C 18 22 26 Ω R2 Resistance R2 Measured at 25°C 1.2 1.5 1.8 kΩ 38 47 56 pF 1 100 nA C1 Capacitance C1 Measured at 1 MHz, 2.5VDC, 25°C ILEAK Diode Leakage At 3.3VDC and 25°C VD1 Diode Reverse-biased Stand-off Voltage I = 10µA, 25°C 5.5 VD2 Signal Clamp Voltage Positive Clamp Negative Clamp @ 10mA, 25°C @ 10mA, 25°C 5.6 -1.2 Human Body Model, MIL-STD-883, Method 3015 Notes 1,2 +30 kV IEC 61000-4-2, contact discharge method (I/O pins) Notes 1,2 +15 kV IEC 61000-4-2, contact discharge method (V3.3 pin) Notes 1,2 +25 kV VESD VCLAMP V 6.8 -0.8 8.0 -0.4 V V In-system ESD Withstand Voltage Clamping Voltage during ESD Discharge Positive Negative MIL-STD-883, Method 3015, 8kV; Notes 1,2 10 -5 V V Note 1: ESD applied to input/output/V3.3 pins with respect to GND, one at a time. Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin (i.e., if ESD is applied to pin 1, then clamping voltage is measured at pin 6). Unused pins are open. Note 2: These parameters guaranteed by design. © 2003 California Micro Devices Corp. All rights reserved. 4 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 11/17/03 PACUSB-U1/U2/U3 Application Information The PACUSB-U1/U2/U3 is targeted for upstream USB ports (peripherals). It provides series termination, EMI filtering, and ESD protection for the two USB data lines D+ and D-. The USB Specification revision 1.1 provides for two data rates: • The Full Speed signaling bit rate at 12 Mbits per second, and • The Low Speed signaling bit rate at 1.5 Mbits per second. The speed is selected by connecting one of the data lines (D+ or D-) through the 1.5kΩ pull-up resistor (R2) to a 3.3V supply voltage. Connections for Full Speed Operation Full Speed devices have the pull-up resistor (R2) connected to the D+ data line, as shown in Figure 1. Pin1 is tied to the D+ line of the USB controller. Pin 6 is connected to D+ line on the USB connector. Connections for Low Speed Operation Low Speed devices have the pull-up resistor (R2) connected to the D- data line, as shown in Figure 2. Pin 1 is tied to the D- line of the USB controller; pin 6 is connected to the D- line on the USB connector. PACUSB-Ux D+ IN1 R1 1 D1_i 6 R2 C1 D+ OUT 1 D1_c 3.3V USB CONTROLLER GND 2 GND 5 USB CONNECTOR Vcc V3.3 C1 GND D- IN2 R1 3 D2_i 4 D- OUT 2 D2_c SC70-6 Figure 1. Full Speed Connection PACUSB-Ux D- IN1 R1 1 D1_i 6 R2 C1 OUT 1 D- D1_c 3.3V USB CONTROLLER GND 5 2 GND USB CONNECTOR Vcc V3.3 C1 GND D+ IN2 R1 3 D2_i 4 OUT 2 D+ D2_c SC70-6 Figure 2. Low Speed Connection © 2003 California Micro Devices Corp. All rights reserved. 11/17/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 5 PACUSB-U1/U2/U3 Mechanical Details PACUSB-U1/U2/U3 devices are packaged in 6-pin SC70 and 6-pin SOT23 packages. Mechanical Package Diagrams SC70 Mechanical Specifications TOP VIEW Dimensions for PACUSB-U1/U2/U3 devices packaged in SC70-6 packages are presented below. For complete information on the SC70 package, see the California Micro Devices SC70 Package Information document. e 6 e 5 4 UUx Pin 1 Marking 1 2 E1 E 3 B PACKAGE DIMENSIONS Package MO-203 Issue A Pins 6 Dimensions D Millimeters Min Max A 0.80 1.10 A1 0.00 0.10 A2 0.70 1.00 B 0.15 0.30 c 0.08 0.25 D 1.85 2.25 E 1.15 1.35 e A2 A A1 END VIEW c 0.65 BSC HE 2.00 2.40 L 0.26 0.46 # per tape and reel SIDE VIEW L 3000 pcs Package Dimensions for SC70-6. © 2003 California Micro Devices Corp. All rights reserved. 6 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 11/17/03 PACUSB-U1/U2/U3 Mechanical Details (continued) SOT23 Mechanical Specifications Dimensions for PACUSB-U1/U2/U3 devices packaged in SOT23-6 packages are presented below. Mechanical Package Diagrams For complete information on the SOT23 package, see the California Micro Devices SOT23 Package Information document. TOP VIEW e1 e 6 Pin 1 Marking PACKAGE DIMENSIONS Package MO-178 Pins 6 Dimensions 4 UUxY 1 2 E1 E 3 b Millimeters Inches Min Max Min Max A -- 1.45 -- 0.057 A1 0.00 0.15 0.000 0.006 b 0.30 0.50 0.012 0.020 c 0.08 0.22 0.003 0.009 D 2.75 3.05 0.108 0.120 E 2.60 3.00 0.102 0.118 E1 1.45 1.75 0.057 0.069 e 0.95 BSC 0.0374 BSC e1 1.90 BSC 0.0748 BSC L 0.60 REF 0.0236 REF # per tape and reel 5 SIDE VIEW D A A1 END VIEW c 3000 pcs L1 L Controlling dimension: inches Package Dimensions for SOT23-6. © 2003 California Micro Devices Corp. All rights reserved. 11/17/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 7