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FIN1531 5V LVDS 4-Bit High Speed Differential Driver
August 2001 Revised August 2001
FIN1531 5V LVDS 4-Bit High Speed Differential Driver
General Description
This quad driver is designed for high speed interconnects utilizing Low Voltage Differential Signaling (LVDS) technology. The driver translates 5V TTL/CMOS 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 and data. The FIN1531 can be paired with its companion receiver, the FIN1532, or with any other Fairchild LVDS receiver.
Features
s Greater than 400Mbs data rate s 5V power supply operation s 400ps max differential pulse skew s 2.0ns maximum propagation delay s Low power dissipation s Power-Off protection s Meets or exceeds the TIA/EIA-644 LVDS standard s Pin compatible with equivalent RS-422 and PECL devices s 16-Lead SOIC and TSSOP packages save space
Ordering Code:
Order Number FIN1531M FIN1531MTC Package Number M16A MTC16 Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Function Table
Input EN H H H X X X L
H = HIGH Logic Level X = Don't Care
Connection Diagram
Outputs DIN H L OPEN H L OPEN X DOUT+ H L L H L L Z DOUT- L H H L H H Z
EN X X X L L L H
L = LOW Logic Level Z = High Impedance
Pin Descriptions
Pin Name DIN1, DIN2, DIN3, DIN4 Description 5V TTL/CMOS Data Input
DOUT1+, DOUT2+, DOUT3+, DOUT4+ Non-inverting LVDS Output DOUT1-, DOUT2-, DOUT3-, DOUT4- Inverting LVDS Output EN EN VCC GND Driver Enable Pin Inverting Driver Enable Pin Power Supply Ground
(c) 2001 Fairchild Semiconductor Corporation
DS500505
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FIN1531
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Input Voltage (VIN) DC Output Voltage (VOUT) 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 +6V -0.5V to +6V -0.5V to +6V
Continuous
Recommended Operating Conditions
Supply Voltage (VCC) Input Voltage (VIN) Operating Temperature (TA) 4.5V to 5.5V 0 to VCC
-40C to +85C
-65C to +150C
150C
8000V 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) IOZ VIK ICC 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 Disabled Output Leakage Current Input Clamp Voltage Power Supply Current VIN = 0V or VCC VCC = 0V, VIN = 5.5V EN = 0.8V, EN = 2.0V, VOUT = 0V or 7V IIK = -18 mA No Load, VIN = 0V or VCC, Driver Enabled RL = 100, Driver Disabled RL = 100, VIN = 0V or VCC, Driver Enabled CIN COUT Input Capacitance Output Capacitance -1.5 -0.8 3.3 3.4 18 7 4.5 6 6 26 pF pF mA VCC = 0V, VOUT = 5.5V VOUT = 0V, Driver Enabled VOD = 0V, Driver Enabled 2.0 GND RL = 100, driver enabled, See Figure 1 1.125 1.25 Test Conditions Min 250 Typ (Note 2) 350 450 25 1.375 25 50 -6 6 VCC 0.8 20 50 20 Max Units mV mV V mV A mA V V A A A V
Note 2: All typical values are at TA = 25C and with VCC = 5.0V.
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FIN1531
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) fMAX tZHD tZLD tHZD tLZD Parameter Differential Propagation Delay LOW-to-HIGH Differential Propagation Delay HIGH-to-LOW Differential Output Fall Time (80% to 20%) Pulse Skew |tPLH - tPHL| Channel-to-Channel Skew (Note 4) Part-to-Part Skew (Note 5) Maximum Frequency(Note 6) LVTTL Output Enable Time from Z to HIGH RL = 100, CL = 10 pF, LVTTL Output Enable Time from Z to LOW See Figure 4 and Figure 5 (Note 7) LVTTL Output Disable Time from HIGH to Z LVTTL Output Disable Time from LOW to Z 200 250 5.0 5.0 5.0 5.0 RL = 100 , CL = 10 pF, Differential Output Rise Time (20% to 80%) See Figure 2 and Figure 3 (Note 7) Test Conditions Min Typ (Note 3) 0.5 0.5 0.6 0.6 1.4 1.4 0.8 0.8 2.0 2.0 1.2 1.2 0.4 0.3 1.0 Max Units ns ns ns ns ns ns ns ns ns ns ns ns
Note 3: All typical values are at TA = 25C and with VCC = 5V. 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 6: fMAX Criteria: Input tR = tF < 1 ns, 0V to 3V, 50% Duty Cycle; Output VOD > 250 mV, 45% to 55% Duty Cycle; all output channels switching in phase. Note 7: Test Circuits in Figure 2 and Figure 4 are simplified representations of test fixture and DUT loading.
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FIN1531
FIGURE 1. Differential Driver DC Test Circuit
Note A: Input pulses have frequency = 10 MHz, tR or tF = 1 ns Note B: C L includes all probe and jig capacitances
FIGURE 2. Differential Driver Propagation Delay and Transition Time Test Circuit
Note A: Input pulses have the following characteristics: Frequency = 10 MHz, tR or tF = 1 ns Note B: C L includes probes and jig capacitance
FIGURE 3. AC Waveforms
FIGURE 4. Differential Driver Enable and Disable Test Circuit
FIGURE 5. Enable and Disable AC Waveforms
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FIN1531
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M16A
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FIN1531 5V LVDS 4-Bit High Speed Differential Driver
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC16
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. www.fairchildsemi.com 6 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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