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PI90LV047A/PI90LVB047A
3V LVDS Quad Flow-Through Differential Line Drivers
Features
* >500 Mbps (250 MHz) switching rates * Flow-through pinout simplifies PCB layout * Low Voltage Differential Signaling with output voltages of 350mV into: - 100-ohm load (PI90LV047) - 50-ohm load (PI90LVB047) * 300ps typical differential skew * 400ps maximum differential skew * 1.7ns maximum propagation delay * 3.3V power supply design * 350mV differential signaling * Bus-Pin ESD protection >10kV * Interoperable with existing 5V LVDS receivers * High impedance on LVDS outputs on power down * Conforms to TIA/EIA-644 LVDS Standard * Industrial operating temperature range (-40C to +85C) * Packages (Pb-free & Green Available): - 16-pin SOIC (S) - 16-pin TSSOP (L)
Description
The PI90LV047A/PI90LVB047A are quad flow-through differential line drivers designed for applications requiring ultra-low power dissipation and high data rates. The devices are designed to support data rates in excess of 400 Mbps (200 MHz) using Low Voltage Differential Signaling (LVDS) technology. The PI90LV047A/PI90LVB047A accept low-voltage TTL/CMOS input levels and translates them to low-voltage (350 mV) differential output signals. The PI90LVB047A doubles the output drive current to achieve Bus LVDS signaling levels with a 50-ohm load. A doubly terminated Bus LVDS line enables multipoint configurations. In addition, the driver supports a 3-state function that may be used to disable the output stage, disabling the load current, and thus dropping the device to an ultra low idle power state of 13mW typical. The devices have a flowthrough pinout for easy PCB layout. The EN and EN inputs are banded together and control the 3-state outputs. The enables are common to all four drivers. The intended application of these devices and signaling technique is for both point-to-point baseband (PI90LV047A) and multipoint (PI90LVB047A) data transmission over controlled impedance media.
Block Diagram
Pin Configuration
DIN1
D1
DOUT1+ DOUT1-
EN DIN1 DIN2
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
DOUT1- DOUT1+ DOUT2+ DOUT2- DOUT3- DOUT3+ DOUT4+ DOUT4-
DIN2
D2
DOUT2+ DOUT2-
VCC GND DIN3
DIN3
D3
DOUT3+ DOUT3-
DIN4 EN
DIN4
D4
DOUT4+ DOUT4-
Truth Table
Enable s EN EN L or Open Input DIN L H X Outputs DOUT+ DOUT- L H Z H L Z
EN EN
H
All other combinations of ENABLE inputs
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PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Absolute Maximum Ratings
Supply Voltage (VCC) ............................................... -0.3V to +4V Input Voltage (DIN) .................................... -0.3V to (VCC + 0.3V) Enable Input Voltage (EN, EN) ................... -0.3V to (VCC + 0.3V) Output Voltage (DOUT+,DOUT-) ............................ -0.3V to +3.9V Short Circuit Duration (DOUT+,DOUT-) ....................................................... Continuous Maximum Package Power Dissipation @ +25C M Package ................................................................. 1088 mW MTC Package ............................................................... 866 mW Derate M Package .............................. 8.5 mW/C above +25C Derate MTC Package ........................ 6.9 mW/C above +25C Storage Temperature Range .............................. -65C to +150C Lead Temperature Range Soldering (4 seconds) ................................................... +260C Maximum Junction Temperature ...................................... +150C ESD Rating(10) (HBM, 1.5kW, 100pF) ...................................................... 10kV (EIAJ, 0W, 200pF) ......................................................... 1200V
Recommended Operating Conditions
Min Supply Voltage (VCC) +3.0 Operating Free Air Temperature (TA) -40 Typ +3.3 +25 Max Units +3.6 V +85 C
Electrical Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified(2,3,4). Symbol Parame te r Te s t Conditions
VO D 1 VO D 1 VO S VO S VO H VO L VIH VIL IIH IIL VC L IO S Differential output voltage magnitude Change in Magnitude of VO D 1 for complementary output states Offset voltage Change in magnitude of VO S for complementary output states Output high voltage Output low voltage Input high voltage Input low voltage Input high current Input low current Input clamp voltage Output short circuit current(11 ) Differential output short circuit current(11 ) Power- off leakage Output 3- State current No load supply current drivers enabled Loaded supply current drivers enabled No load supply current drivers disabled VIN = VC C or 2.5V VIN
=
Pin
M in. 250
Typ. M ax. Units 310 1 450 35 1.375 mV mV V mV
RL = 100 ohms (LV047A) RL = 50 ohms (LVB047A) See Figure 1
LVxxx LVBxxx
DO U T- DO U T+
1.125 1.00
1.2
1.15 1.375 1 1.33 25 1.6 VC C 0.8 2 -2 -0 . 8 -4.2 -9.0 -10 -20 -10 -20 +20 +10 8.0 19.0 30 45 8.0 8.0
PS8611B
0.90 2.0 DIN , EN, EN GND -20 -10 -1.5 LVxxx LVBxxx LVxxx LVBxxx DO U T- DO U T+ -20 -10 LV047A LVB047A VC C
1.02
V
+20 +10
A A V
GND or 0.4V
IC L = -18mA Enabled, DIN = VC C , DO U T+ = 0V or DIN = GND, DO U T- = 0V Enabled, VO D = 0V
mA
IO S D IO F F IO Z IC C IC C L IC C Z
-4.2 -9.0 1 1 4.0 6.0 20 35 2.2 3.0
VO U T = 0V or 3.6V, VC C = 0V or Open EN = 0.8V and EN =2.0V, VO U T = 0V or VC C DIN = VC C or GND
A
RL = 100 ohms, (all channels) LV047A DIN = VC C or GND (all inputs) LVB047A DIN = VC C or GND, EN = GND, EN = VC C
2
m
LV047A LVB047A
10/04/04
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PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Switching Characteristics
S y mbo l tPHLD tPLHD tS K D1 tS K D2 tS K D3 tS K D4 tTLH tTHL tPHZ tPLZ tPZH tPZL fMAX
VCC = +3.3V 10%, TA = -40C(3,9,12)
Pa ra me te r Differential P ro p agatio n Delay High to Lo w Differential P ro p agatio n Delay Lo w to High Differential P ulse S k ew tPHLD tPLHD (5) C hannel- to - C hannel S k ew(6) Differential P art- to - P art S k ew(7) Differential P art- to - P art S k ew(8) Rise Time F all Time Disab le Time High to Z Disab le Time Lo w to Z Enab le Time Z to High Enab le Time Z to Lo w Maximum O p erating F req uency (14) RL = 1 0 0 o hms (LV0 4 7 ) RL = 5 0 o hms (LVB0 4 7 ) C L = 15pF (F igures 4 and 5 ) RL = 1 0 0 o hms (LV0 4 7 ) RL = 5 0 o hms (LVB0 4 7 ) C L = 15pF (F igures 2 and 3 ) Te s t Co nditio ns M in. 0.5 0.5 0 0 0 0 0.5 0.5 Ty p. 0.8 1.2 0.3 0.4 M ax. 1.9 1.9 0.4 0.5 1.0 1.2 1.5 1.5 5 5 7 7 MHz Units
Notes 1. "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of "Electrical Characteristics" specifies conditions of device operation. 2. Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except: VOD1 and VOD1. 3. All typicals are given for: VCC = +3.3V, TA = +25C. 4. The PI90LV047A is a current mode device and only functions within datasheet specifications when a resistive load is applied to the driver outputs typical range is (90 ohms to 110 ohms). 5. tSKD1 |tPHLD - tPLHD | is the magnitude difference in differential propagation delay time between the positive going edge and the negative going edge of the same channel. 6. tSKD2 is the Differential Channel-to-Channel Skew of any event on the same device. 7. tSKD3, Differential Part to Part Skew, is defined as the difference between the minimum and maximum specified differential propagation delays. This specification applies to devices at the same VCC and within 5C of each other within the operating temperature range. 8. tSKD4, part to part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices over recommended operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max - Min| differential propagation delay. 9. Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50 ohms, tr 1 ns, and tf 1ns. 10. ESD Ratings: HBM (1.5 kohms, 100pF) 10kV EIAJ (0 ohm, 200pF) 1200V 11. Output short circuit current (IOS) is specified as magnitude only, minus sign indicates direction only. 12. CL includes probe and jig capacitance. 13. All input voltages are for one channel unless otherwise specified. Other inputs are set to GND. 14. f MAX generator input conditions: tr = tf <1ns (0% to 100%), 50% duty cycle, 0V to 3V. Output Criteria: duty cycle = 45%/55%, VOD >250mV, all channels switching.
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PS8611B
10/04/04
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PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Parameter Measurement Information
DOUT+ RL/2 DIN RL/2 Driver ENABLED
VOS VOD
VCC GND
Figure 1. Driver VOD and VOS Test Circuit
CL DOUT+ Generator DIN 50 Driver ENABLED CL RL DOUT-
Figure 2. DriverPropagation Delay & Transition Time Test Circuit
3V 1.5V DIN tPLHD DOUT- 0V Differential DOUT+ 80% DDIFF 20% tTLH 0V VDIFF = DOUT+ - DOUT- 20% tTHL 80% 0V 0V VOL tPHLD VOH 1.5V 0V
Figure 3. Driver Propogation Delay and Transition Time Waveforms
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PS8611B
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PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Parameter Measurement Information (continued)
CL DOUT+ 50 VCC GND EN Generator 50 1/4 PI90LV047A EN CL DIN D +1.2V 50 DOUT-
Figure 4. Drive 3-State Delay Test Circuit
EN When EN = GND or OPEN 1.5V 1.5V 0V 3V 1.5V EN When EN = VCC 1.5V 0V
3V
tPHZ DOUT+ When DIN = VCC DOUT- When DIN = GND
tPZH VOH
50%
50% 1.2V 1.2V
50% DOUT+ When DIN = GND DOUT- When DIN = VCC tPLZ tPZL
50% VOL
Figure 5. Driver 3-State Delay Waveform
Typical Application
Enable
Any LVDS Receiver + - Data Output
Data Input 1/4 PI90LV047A
Figure 6. Point-to-Point Application
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PS8611B 10/04/04
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PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Packaging Mechanical: 16-Pin SOIC (W)
16
.149 .157
3.78 3.99 .0099 .0196 0.25 x 45 0.50
1 .386 .393 9.80 10.00 .0155 .0260 0.393 0.660 REF .053 .068 1.35 1.75 SEATING PLANE 0-8 0.41 1.27 .016 .050 .0075 .0098 0.19 0.25
.2284 .2440 5.80 6.20
.050 BSC 1.27
.013 .020 0.330 0.508
.0040 0.10 .0098 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Packaging Mechanical: 16-Pin TSSOP (L)
16
.169 .177
4.3 4.5
1 .193 .201 4.9 5.1 .004 .008 .047 max. 1.20 SEATING PLANE 0.45 .018 0.75 .030 .252 BSC 6.4
0.09 0.20
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 .006
0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
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PS8611B
10/04/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV047A/PI90LVB047A 3V LVDS Quad Flow-Through Differential Line Drivers
Ordering Information
Ordering Code PI90LV047AW PI90LV047AWE PI90LV047AL PI90LV047ALE PI90LVB047AW PI90LVB047AWE PI90LVB047AL PI90LVB047ALE Package Code W W L L W W L L Package Type 16-pin SOIC Pb-free & Green, 16-pin SOIC 16-pin TSSOP Pb-free & Green, 16-pin TSSOP 16-pin SOIC Pb-free & Green, 16-pin SOIC 16-pin TSSOP Pb-free & Green, 16-pin TSSOP
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
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PS8611B 10/04/04

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