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FIN1027 3.3V LVDS 2-Bit High Speed Differential Driver
April 2001 Revised September 2001
FIN1027 3.3V LVDS 2-Bit High Speed Differential Driver
General Description
This dual driver is designed for high speed interconnects utilizing Low Voltage Differential Signaling (LVDS) technology. The driver translates LVTTL signal levels to LVDS levels with a typical differential output swing of 350 mV which provides low EMI at ultra low power dissipation even at high frequencies. This device is ideal for high speed transfer of clock or data. The FIN1027 can be paired with its companion receiver, the FIN1028, or with any other LVDS receiver.
Features
s Greater than 600Mbs data rate s 3.3V power supply operation s 0.5ns maximum differential pulse skew s 1.5ns maximum propagation delay s Low power dissipation s Power-Off protection s Meets or exceeds the TIA/EIA-644 LVDS standard s Flow-through pinout simplifies PCB layout s 8-Lead SOIC package saves space
Ordering Code:
Order Number FIN1027M Package Number M08A Package Description 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Pin Descriptions
Pin Name DIN1, DIN2 DOUT1+, DOUT2+ DOUT1-, DOUT2- VCC GND Description LVTTL Data Inputs Non-inverting Driver Outputs Inverting Driver Outputs Power Supply Ground
Connection Diagram
Function Table
Input DIN L H OPEN
H = HIGH Logic Level L = LOW Logic Level X = Don't Care
Outputs DOUT+ L H L DOUT- H L H TOP VIEW
(c) 2001 Fairchild Semiconductor Corporation
DS500501
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FIN1027
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Input Voltage (DIN) DC Output Voltage (DOUT) Driver Short Circuit Current (IOSD) Storage Temperature Range (TSTG) Max Junction Temperature (TJ) Lead Temperature (TL) (Soldering, 10 seconds) ESD (Human Body Model) ESD (Machine Model) 260C
-0.5V to +4.6V -0.5V to +6V -0.5V to +4.7V
Continuous
Recommended Operating Conditions
Supply Voltage (VCC) Input Voltage (VIN) Operating Temperature (TA) 3.0V to 3.6V 0 to VCC
-40C to +85C
-65C to +150C
150C
6500V 400V
Note 1: The "Absolute Maximum Ratings": are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature and output/input loading variables. Fairchild does not recommend operation of circuits outside databook specification.
DC Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified
Symbol VOD VOD VOS VOS IOFF IOS VIH VIL IIN II(OFF) VIK ICC CIN COUT Parameter Output Differential Voltage VOD Magnitude Change from Differential LOW-to-HIGH Offset Voltage Offset Magnitude Change from Differential LOW-to-HIGH Power Off Output Current Short Circuit Output Current Input HIGH Voltage Input LOW Voltage Input Current Power-Off Input Current Input Clamp Voltage Power Supply Current Input Capacitance Output Capacitance VIN = 0V or VCC VCC = 0V, VIN = 0V or 3.6V IIK = -18 mA No Load, VIN = 0V or VCC RL = 100 , VIN = 0V or VCC 4 6 -1.5 12.5 17 VCC = 0V, VOUT = 0V or 3.6V VOUT = 0V VOD = 0V 2.0 GND RL = 100 , See Figure 1 1.125 1.25 Test Conditions Min 250 Typ (Note 2) 350 450 25 1.375 25 20 -8 8 VCC 0.8 20 20 Max Units mV mV V mV A mA V V A A V mA mA pF pF
Note 2: All typical values are at TA = 25C and with VCC = 3.3V.
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FIN1027
AC Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified
Symbol tPLHD tPHLD tTLHD tTHLD tSK(P) tSK(LH), tSK(HL) tSK(PP) Parameter Differential Propagation Delay LOW-to-HIGH Differential Propagation Delay HIGH-to-LOW Differential Output Rise Time (20% to 80%) RL = 100 , CL = 10pF, Differential Output Fall Time (80% to 20%) Pulse Skew |tPLH - tPHL| Channel-to-Channel Skew (Note 4) Part-to-Part Skew (Note 5) See Figure 2 and Figure 3 Test Conditions Min Typ (Note 3) 0.5 0.5 0.4 0.4 1.5 1.5 1.0 1.0 0.5 0.3 1.0 Max Units ns ns ns ns ns ns ns
Note 3: All typical values are at TA = 25C and with VCC = 3.3V. Note 4: tSK(LH), tSK(HL) is the skew between specified outputs of a single device when the outputs have identical loads and are switching in the same direction. Note 5: tSK(PP) is the magnitude of the difference in propagation delay times between any specified terminals of two devices switching in the same direction (either LOW-to-HIGH or HIGH-to-LOW) when both devices operate with the same supply voltage, same temperature, and have identical test circuits.
Note A: All input pulses have frequency = 10 MHz, tR or tF = 2 ns Note B: CL includes all probe and fixture capacitances
FIGURE 1. Differential Driver DC Test Circuit
FIGURE 2. Differential Driver Propagation Delay and Transition Time Test Circuit
FIGURE 3. AC Waveforms
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FIN1027
DC / AC Typical Performance Curves
FIGURE 4. Output High Voltage vs. Power Supply Voltage
FIGURE 5. Output Low Voltage vs. Power Supply Voltage
FIGURE 6. Output Short Circuit Current vs. Power Supply Voltage
FIGURE 7. Differential Output Voltage vs. Power Supply Voltage
FIGURE 8. Differential Output Voltage vs. Load Resistor
FIGURE 9. Offset Voltage vs. Power Supply Voltage
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FIN1027
DC / AC Typical Performance Curves
(Continued)
FIGURE 10. Power Supply Current vs. Frequency
FIGURE 11. Power Supply Current vs. Power Supply Voltage
FIGURE 12. Power Supply Current vs. Ambient Temperature
FIGURE 13. Differential Propagation Delay vs. Power Supply
FIGURE 14. Differential Propagation Delay vs. Ambient Temperature
FIGURE 15. Differential Skew (tPLH - tPHL) vs. Power Supply
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FIN1027
DC / AC Typical Performance Curves
(Continued)
FIGURE 16. Differential Pulse Skew (tPLH - tPHL) vs. Ambient Temperature
FIGURE 17. Transition Time vs. Power Supply Voltage
FIGURE 18. Transition Time vs. Ambient Temperature
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FIN1027 3.3V LVDS 2-Bit High Speed Differential Driver
Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M08A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 7 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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