PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch w/ Low THD Channels for Audio Signals Features Description • • • • • • PI3USB411 integrates two unique Pericom technology solutions into a single IC package. PI3USB411 offers the customer a solution that switches both high speed differential signals, with high bandwidth performance, as well as low THD audio signals. For handheld applications where both a USB data transfer port and a port for an external headset is required, the PI3USB411 solution can offer the ability to combine the two ports into one. With a single port, design engineers are faced with an issue of switching two completely different types of signals. One signal is a high speed differential signal, where bandwidth is the largest concern, and the second signal is an audio signal, where low THD is the largest concern. Pericom’s solution offers multiple channels within the PI3USB411 device. Two channels are targeted for high speed USB2.0 signals (Dx), and two channels are targeted for low THD audio signals (Ax). Due to its passive nature, all paths will allow bi-directional traffic. Bandwidth for USB ports > 1.2Gbps Low THD for Audio ports < 0.02% ESD > 2kV HBM Low ICC = 800µA Wide VCC operating range: 2.7V to 4.2V ±10% Packaging: Pb-free & Green, 16-contact TDFN (ZJ16) Block Diagram Pin Description ��� ��� ��� ��� ������ ���� ����� ����� ���� ����� ����� ��� � �� ��� ��� � �� ��� ��� � �� ��� ������ � �� ��� ����� � �� ��� ���� � �� ���� ����� � �� ��� ����� � � ����� Truth Table USB_EN Function 0 DI = DO 1 DI = DO = Hi-Z A_ENx Function 0 Ainx = Aoutx 1 Ainx = Aoutx = Hi-Z Note: x = 1, 2 06-0078 1 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ......................................... –65°C to +150°C Supply Voltage to Ground Potential .................... –0.5V to +4.4V DC Input Voltage ................................................. –0.5V to +5.5V DC Output Current ........................................................... 120mA Power Dissipation ................................................................ 0.5W Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics for USB 2.0 Switching over Operating Range (only related to pins 1, 2, 4, 14, 15) (TA = –40°C to +85°C, VCC = 3.3V ±10%) Paramenter Test Conditions (1) Description Typ.(2) Min. VCC = 4.2V 2.0 VCC = 3.3V 1.6 Max. Units 0.8 V VIH Input HIGH Voltage Guaranteed HIGH level VIL Input LOW Voltage Guaranteed HIGH level VIK Clamp Diode Voltage VCC = Max., IIN = –18mA IIH Input HIGH Current VCC = Max., VIN = VCC ±5 IIL Input LOW Current VCC = Max., VIN = GND ±5 RON Switch On-Resistance(3) VCC = Min., 1.25V ≤ VIN ≤ VCC, IIN = –40mA 4 RFLAT(ON) On-Resistance Flatness(4) VCC = Min., VIN @ 1.5V and VCC IIN = -40mA 1.0 ΔRON On-Resistance match from center ports to any other port(4) VCC = Min., 1.5V ≤ VIN ≤ VCC, IIN = -40mA 0.9 -0.7 -1.2 μA 6.5 Ω 2 Capacitance for USB 2.0 Switching (TA = 25°C, f = 1 MHz) (only related to pins 1, 2, 4, 14, 15) Parameters(4) Description CIN Input Capacitance COFF Port I Capacitance, Switch OFF CON Switch Capacitance, Switch ON Test Conditions(1) VIN = 0V Typ.(2) Max. 2.0 3.0 4.0 6 7.5 9.5 Units pF Notes for Page 2: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading. 3. Measured by the voltage drop between DI and DO pins at indicated current through the switch. ON-resistance is determined by the lower of the voltages on the two (DI & DO) pins. 4. This parameter is determined by device characterization but is not production tested. 06-0078 2 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%, GND = 0V) (Only related to pins 1, 2, 4, 14, 15) Parameters(1) Description XTALK Crosstalk OIRR OFF Isolation BW Bandwidth -3dB Test Conditions(3) Typ.(4) Units -31 RL = 100Ω, f = 250 MHz dB -39 RL = 100Ω 700 MHz Switching Characteristics (Only related to pins 1, 2, 4, 14, 15) Parameters tPD Test (3) Conditions Description Min. Propagation Delay(2) Typ.(4) Max. 0.25 tPZH, tPZL Line Enable Time - USB_EN to DI, DO 0.5 15.0 tPHZ, tPLZ Line Disable Time - USB_EN to DI, DO 0.5 9.0 tSK(p) Skew between opposite transitions of the same output (tPHL - tPLH) (2) Power Supply Characteristics Parameter ICC Description Power Supply Current Units Test Conditions(3) VCC = Max, VIN = GND or VCC Min. ns 0.1 0.2 Typ. Max. Units 800 µA Notes for Page 3: 1. Guaranteed by design. 2. The switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side. 3. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 4. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading. 06-0078 3 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Test Circuit for Electrical Characteristics 6.0V VCC 200-ohm Pulse Generator VIN D.U.T VOUT 10pF CL RT 200-ohm Notes: • CL = Load capacitance: includes jig and probe capacitance. • RT = Termination resistance: should be equal to ZOUT of the Pulse Generator • Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. • All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. • The outputs are measured one at a time with on transition per measurement. Switch Positions Test Switch tPLZ, tPZL (output on O-side) 6.0V tPHZ, tPZH (output on O-side) GND Prop Delay Open Test Circuit for Dynamic Electrical Characteristics ������� �� �� ��� ��������� �������� 06-0078 �� ���� 4 ������ PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Switching Waveforms ����� ��� ������ ���� ����� ������ ������ ��� ���� ���� ���� ���� ������ ���� ���� ��� ����� ��� ���� ������ ���� ���� ���� ��� ��������� ��������� ����� ��� ���� ������ Voltage Waveforms Propagation Delay Times ��� Voltage Waveforms Enable and Disable Times 3.5V 2.5V Input tPLH 1.5V tPHL VOH 2.5V Output VOL tSK(p) = I tPHL – tPLH I Pulse Skew - tSK(p) 06-0078 5 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Audio Switch (only related to pins 5, 6, 7, 8, 9, 11) DC Electrical Characteristics +3V Supply (VCC = 2.7V to 4.2V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at 3V and +25°C.) Parameter Symbol Test Conditions Min. Typ. Max. Units VCC V Analog Switch Analog Signal Range VAINX or VAOUTX On-Resistance RON VCC = 2.7V, IAIN = 100mA, VAOUT = 0 to VCC 0.6 0.8 On-Resistance Match Between Channels ∆RON VCC = 2.7V, IAIN = 100mA, VAOUT = 1.5V 0.01 0.06 On-Resistance Flatness RONF VCC = 2.7V, IAIN = 100mA, VAOUT = 0 to VCC Off Leakage Current IOFF VCC = 3.3V, VAOUT = 3V, 0.3V, VAIN = 0.3V, 3V -400 I (ON) VCC = 3.3V, VAOUT = 3V, 0.3V, VAIN = 0.3V, 3V, or floating -160 On Leakage Current -0.3 Ω 0.25 400 nA 160 Digital I/O (Pin 5 and Pin 7) Input Logic High VIH 1.3 Input Logic Low VIL Input Hysteresis VH VCC = 3.3V Input Leakage Current IA_EN VA_EN = 0 or VCC 0.6 200 V mV -0.5 0.5 µA 2.7 4.6 V Power Supply Power-Supply Range 06-0078 VCC 6 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Switch and AC Characteristics (only related to pins 5, 6, 7, 8, 9, 11) Parameter Turn-On Time Turn-Off Time Symbol Crosstalk 3dB Bandwidth Min. Typ. Max. 25 tON VCC = 2.7V, VAOUT = 1.5V, RL = 50Ω, CL = 35pF, See Test Circuit Figure 1 & 2. 15 tOFF VCC = 2.7V, VAOUT = 1.5V, RL = 50Ω, CL = 35pF, See Test Circuit Figure 1 & 2. 4 VAIN = 0, RS = 0, CL = 1nF, See Test Circuit Figure 3. 55 OIRR CL = 5pF, RL = 50Ω, f = 100kHz, VAIN = 1 VRMS, , See Test Circuit Figure 4. -75 XTALK CL = 5pF, RL = 50Ω, f = 100kHz, VAIN = 1 VRMS, See Test Circuit Figure 5. -90 See Test Circuit Figure 8. 60 Charge Injection Off-Isolation Test Conditions Q f3dB Units ns 10 pC dB MHz Capacitance (only related to pins 5, 6, 7, 8, 9, 11) Parameter Symbol Test Conditions Min. Typ. Off Capacitance C (OFF) f = 1MHz, See Test Circuit Figure 6. 35 On Capacitance C (ON) f = 1MHz, See Test Circuit Figure 7. 95 06-0078 7 Max. Units pF PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Test Circuits and Timing Diagrams (only related to pins 5, 6, 7, 8, 9, 11) ��� ��� � ��� ���� ��� � �� �� �� ��� ���� ���� ��� ����� ����� ������������������������������������������ Figure 1. AC Test Circuit Note: 1. Unused input (NC or NO) must be grounded. Logic Input VIH VIL Off 50% On tOFF VOUT Switch Output 0V tr < 5ns tf < 5ns Off 90% 90% tON Logic Input Waveforms inverted for Switches that have opposite logic Figure 2. AC Waveforms 06-0078 8 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals ���� � �� � ��� ���� �� ��� ���� ����� ����� ��� �� ��� �� ��� ���� ����� ����� ������� ��� ���� � Figure 3. Charge Injection Test ��� ��� ���� ��� � �� ������ ��������� ���� ��� ��� ���� ����������� ��������� ��� � ��� ������ ��������� ��� �� ��� ��� ���� �� ��� Figure 5. Crosstalk Figure 4. Off Isolation ��� ��� ���� � �� ���� ����������� ����� ��� ����������� ����� ���� ����������� ��������� � �� ��� ��������� ���� � ��� ����������� ��������� � ��� ��� ��� Figure 7. Channel On Capacitance Figure 6. Channel Off Capacitance 06-0078 ��� � ��� �������� ��������� � �� 9 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals ��� ���� ��� � ��� ������ ��������� ��� � �� �������� ��� ���� ����������� ��������� ��� Figure 8. Bandwidth Application Information USB 2.0 HS Data + Audio Figure 9. Application of handheld device combining audio and USB data on single port USB 2.0 Signals + High Fidelity Audio Signals Figure 10: USB 2.0 high-Speed (480Mbps) Signal Test Set-up 06-0078 10 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Figure 11: USB 2.0 High-Speed (480Mbps) TP1, left eye, and TP5, right eye, tested with no PI3USB411 in the signal path Figure 12: USB 2.0 High-Speed (480Mbps) TP1, left eye, and TP5, right eye, tested with only USB data signals connected (Audio signals are left not connected with no inductors. 06-0078 11 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Figure 13: USB 2.0 High-Speed (480Mbps) TP1, left eye, and TP5, right eye, tested with PI3USB411 in the signal path with Analog signals “Off” and 9.3uH Inductors for L1 and L2 Figure 14: USB 2.0 full-Speed (12Mbps) Signal Test Set-up 06-0078 12 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Figure 15: USB 2.0 Full-Speed (12Mbps) TP1, left eye, and TP4, right eye, tested with no PI3USB411 in the signal path Figure 16: USB 2.0 Full-Speed (12Mbps) TP1, left eye, and TP4, right eye, tested with only USB data signals connected (Audio signals are left not connected with no inductors). Figure 17: USB 2.0 Full-Speed (12Mbps) TP1, left eye, and TP4, right eye, tested with PI3USB411 in the signal path with Analog signals “Off” and 9.3uH Inductors for L1 and L2 06-0078 13 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Figure 18: High Fidelity Audio Signal Test Setup. In Figure 18, the test flow is to send a sine wave signal from 30Hz to 30KHz from the Function Generator (HP8116A) to the Pericom Test Board. Pericom took measurements on three test points using a Tektronix Scope (TDS694C). The three test points were TP2 (Channel 1 on Scope), TP3 (Channel 2 on Scope), and TP4 (Channel 3 on Scope). R1 represents the termina- Figure 19: See Figure 18 for test setup. R1=12K and the sine wave on the left plot is 30kHz, while the sine wave on the right is 30Hz. Channel 1 (black)=TP2, Channel 2 (green)=TP3, Channel 3(red)=TP4 06-0078 14 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Figure 20: R1=15-ohm, leftà30khz, rightà30hz, channel 1 (black)=TP2, channel 2 (green)=TP3, channel 3(red)=TP4 Figure 21: R1=4-ohm and the sine wave on the left plot is 30kHz, while the sine wave on the right is 30Hz. Channel 1 (black)=TP2, Channel 2 (green)=TP3, Channel 3(red)=TP4 06-0078 15 PS8817A 06/06/06 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals Packaging Information - 16-contact TDFN � ���� ����������� ���� ���������� ������������������������ DATE: 03/30/06 ������� ������������������������������������ ���������������������������� ���������������������������������������������������������������������������� ���������������� DESCRIPTION: 16-contact, Thin Dual-in-line Flat No-Lead (TDFN) PACKAGE CODE: ZJ (ZJ16) REVISION: B DOCUMENT CONTROL #: PD-2042 Ordering Information Ordering Code Package Code Package Description Top Mark PI3USB411ZJE ZJ Pb-free & Green, 16-contact TDFN U1 Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free and Green • Adding an X suffix = Tape & Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0078 16 PS8817A 06/06/06