PI90LV03/PI90LVB03 SOTiny™ LVDS Repeater Features Description • • • • • • • • PI90LV03 and PI90LVB03 are single LVDS Repeaters that use low-voltage differential signaling (LVDS) to support data rates up to 660 Mbps. The PI90LVB03 features high-drive output. Both products are designed for applications requiring high-speed, lowpower consumption, low-noise generation, and a small package. • • • • • Complies with ANSI/TIA/EIA-644-A LVDS standard LVDS receiver inputs accept LVPECL signals Low jitter 660 Mbps fully differential data path Bus-Terminal ESD exceeds 2kV Single +3.3V supply voltage operation Receiver Differential Input Voltage Threshold < ±100mV Receiver open-circuit failsafe Low-Voltage Differential Signaling with typical Output Voltages of 350mV into: – 100Ω Load (PI90LV03) – 50Ω Load (PI90LVB03) Typical Propagation Delay Times of 1.5ns Typical Power Dissipation of 20mW @ 200 MHz Outputs are High Impedance with VCC < 1.5V Industrial Temperature Range: –40°C to 85°C Packaging: - 6-pin space-saving SOT-23 (T) The LVDS Repeaters take an LVDS input signal and provide an LVDS output to address various interface logic requirements such as signal isolation, repeater, stub length, and Optical Transceiver Modules. In many large systems, signals are distributed across backplanes, and the distance between the transmission line and the unterminated receivers are one of the limiting factors for system speed. The buffers can be used to reduce the ‘stub length’ by strategic device placement along the trace length. They can improve system performance by allowing the receiver to be placed very close to the main transmission line or very close to the connector on the card. Longer traces to the LVDS receiver can then be placed after the buffer. The buffer’s wide input dynamic range enables them to receive differential signals from LVPECL and LVDS sources. The devices can be used as compact high-speed serial translators between LVPECL and LVDS data lines. The differential translation provides a simple way to mix and match Optical Transceiver ICs from various vendors without redesigning the interfaces. Function Table Inputs Outputs VID = VA - VB V Y - VZ VID > 50mV H 50mV < VID < 50mV X VID ≤ -50mV L Open H Applications The PI90LV03 and PI90LVB03 provide differential translation between LVDS and PECL devices for high-speed, point-to-point interface and telecom applications: Notes: 1. H = high level; L = low level; X = indeterminate Block Diagram A B 5 1 2 – ATM – SONET/SDH – Switches – Routers – Add-Drop Multiplexers Y Z 4 High-Speed Differential Cable Repeater Application Pin Configuration A 1 6 VDD B 2 5 Y GND 3 4 Z TX 1 Any LVDS RX RT = ZO LVDS Repeater RT = ZO ZO ZO PS8660A 07/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters Absolute Maximum Ratings Over Operating Free-Air Temperature (unless otherwise noted)(2) Supply Voltage Range, VCC(1) ........................................................................... –0.5V to 4V Voltage Range (A, B , or ROUT) .............................................. –0.5 to VCC +0.5V ESD rating (HBIN, 1.5kΩ, 100pF) ............................................................................. ≥2ΚV Storage Temperature Range ..........................................................–65°C to 150°C Lead Temperature 1.6 mm (1/16 inch) from case for 10 seconds................ 250°C Notes: 1. All voltage values, except differential I/O bus voltages, are with respect to ground terminal. 2. 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 under "Recommended Operating Conditions" is not implied. Exposure to Absolute-Maximum-Rated conditions for extended periods may affect device reliability. Short Stubs TX RT PI90LVB03 PI90LV03 PI90LV03 Long TraceSupport ASIC RT RT RX RX Figure 2. Backplance Stub-Hider Application Dissipation Rating Table Package TA ≤ 25°C Power Rating Derating Factor Above TA = 25°C TA = 85°C Power Rating 6-pin SOT-23 (T) 385mW 3.1mW/°C 200mW Notes: 1. This is the inverse of the junction-to-ambient thermal vsistance when board-mounted (low-K) and with no air flow. Recommended Operating Conditions Symbol Paramters Min. Typ. Max. 3.3 3.6 VCC Supply Voltage 3.0 | VID | Magnitude of differential Voltage 0.1 VIC Common-Mode Intput Voltage(6) 0 TA Operating Free-air Temperature -40 2 Units 0.6 2.0 - | VID | 2 85 V °C PS8660B 09/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters Common-Mode Input Voltage vs. Differenital Input Voltage VIC – Common-Mode Input Voltage – V 3 2.5 VCC = 3.6V 2 VCC = 3.6V 1.5 VCC = 3.6V 1 0.5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 I VID I – Differential Input Voltage – V Figure 3. VIC vs. VID and VCC Note: 1. All typical values are at 25°C and with a 3.3V supply. 3 PS8660B 09/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters Electrical Characteristics over Recommended Operating Conditions (unless otherwise noted). Symbol Parameter VITH+ Positive-going differential input voltage threshold VITH- Negative-going differential input voltage threshold II Input Current (A or B inputs) IID High-level input current (IIA - IIB) | VOD | Differential output voltage magnitude ∆ | VOD | Change in differential output voltage magnitude VOC(SS) Steady-State common-mode output voltage ∆VOC(SS) Change in Steady-State common-mode output voltage between logic states VOC(PP) Peak-to-peak common-mode output voltage Test Condition Min. 50 See figures 3 and 4 and table 1 Supply Current VI - 0V ±20 VI = 2.4V or VCC -0.8 -1.2 ±2 247 RL = 100Ω (LV03); RL = 50Ω (LVB03); See Figure 4 See Figure 5 CI Input load capacitance 454 -50 50 1.125 1.375 -50 50 100 7 9 VI = 0V or VCC, RL = 100Ω (LV03) 9.5 12.5 VI = 0V or VCC, RL = 50Ω (LVB03) 18 25 LV03 3 10 LVB03 6 20 VOD = 0V Power-off output current 350 25 Short-circuit output current IO(OFF) µA VIA = 0V, VIB = 0.1V VIA = 2.4V, VIB = 2.3V VOY or VOZ = 0V IOS mV -50 VI = 0V or VCC No load ICC Typ.(1) Max. Units LV03 10 LVB03 20 VCC = 0V, VO = 3.6V ±1 3 4 mV V mV mA µA pF PS8660B 09/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters Receiver Switching Characteristics over Recommended Operating Conditions (unless otherwise noted) Symbol Parameter Test Conditions Min. Typ. Max. tPLH Propagation delay, low to high level outputs 1.4 6 tPHL Propagation delay, high to low level outputs 1.4 6 tR Output signal rise time 0.5 1 tF Output signal fall time 0.5 1 tsk(p) Pulse skew ( | tPHL - tPLH | tskpp Part-to-part skew fmax LV03 RL = 100Ω, LVB03 RL = 50Ω; CL = 10pF See Figure 6 )(2) Maximum throughtput data rate(3) Units ns 50 ps 1.5 ns 660 mbps Notes: 1. All typical values are at 25°C and with a 3.3V supply 2. tsk(p) is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output. 3. fmax generator input conditions: 50% duty cycle, 200mV, Output criteteria: 45% to 55% duty cycle, VOD ≥ 250mV Parameter Measurement Information A VIA + VIB 2 DY VID VIC IOZ VIA VIB IOY B DZ VOD VOY= VOZ 2 VOY VOZ VOC Figure 4. Voltage Definitions Table 1. Receiver Minimum and Maximum Input Threshold Test Voltages Applied Voltages (V) Resulting Differenital Input Votlages (mV) Resulting Common-Mode Input Voltages (V) VIA VIB VID VIC 1.25 1.20 50 1.2 1.15 1.20 -50 1.2 2.4 2.35 50 2.35 2.3 2.35 -50 2.35 0.05 0 50 0.05 0 0.05 -50 0.05 1.5 0.9 600 1.2 0.9 1.5 -600 1.2 2.4 1.8 600 2.1 1.8 2.4 -600 2.1 0.6 0 600 0.3 0 0.6 -600 0.3 5 PS8660B 09/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters A RL (Note 2) B 1.4V VI VI DY 50pF VOC DZ 1V VOC(PP) VOC VOC(SS) Figure 5. Test Circuit and Definitions for the Driver Common-Mode Output Voltage Notes: 1. All input pulses are supplied by a generator having the following characteristics: tr or tf ≤ 1ns, Pulse Repetition Rate (PPR) = 0.5 Mpps, pulse width = 500 ±10ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. The test measurement of VOC(PP) is made on test equipment with a –3dB bandwidth of at least 300MHz. 2. RL = 49.9Ω ±1% for PI90LV03 or 24.9Ω ±1% for PI90LVB03. 3. To verify output max signaling rate , the output signal transition time (tr/tf) should not exceed 0.76ns. DY VID A B A B VOD DZ CL= 10pF (2 places) 1.4V Input 1.0V tPLH Output RL = (Note 3) tPHL 100% 80% VOD(H) 0V VOD(L) 20% 0% tf tr Figure 6. Test Circuit and Definitions Notes: 1. All input pulses are supplied by a generator having the following characteristics: tr or tf ≤ 1ns, Pulse Repetition Rate (PPR) = 50 Mpps, pulse width = 10 ±0.2ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. 2. This point is 1.4V with VCC = 3.3V or 1.2V with VCC = 2.7V. 3. RL = 100Ω ±1% for PI90LV03 or 50Ω ±1% for PI90LVB03. 6 PS8660B 09/07/04 PI90LV03/PI90LVB03 SOTiny™ LVDS Repeaters Packaging Mechanical: 6-Pin SOT (T) 0.075 1.90� BSC 5 6 4 0.059 1.50 0.068 1.75 2 0.102 2.60 0.118�3.00 0º - 10º 3 Datum "A" 0.004 0.10 0.023 0.60 0.037 0.95 BSC 0.014 0.35 0.019 0.50� 0.110 2.80 0.118 3.00 0.057 1.45�MAX. X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS SEATING PLANE 0.000 0.00 0.005 0.15 Ordering Information Ordering Code Package Code Package Description Top Marking PI90LV03TX T 6-pin SOT-23 L9 PI90LV03TEX T Pb-free & Green, 6-pin SOT-23 LC PI90LVB03TX T 6-pin SOT-23 LA PI90LVB03TEX T Pb-free & Green, 6-pin SOT-23 LD Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. X = Tape and reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 7 PS8660B 09/07/04