View PI90LV3811_4208905.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

PI90LV3811/PI90LVB3811
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
High-Speed Differential Line Drivers
Features
* Ten line drivers meet or exceed the requirements of the ANSI EIA/TIA-644 Standard * Designed for signaling rates up to 660 Mbps with very low radiation (EMI) * Low voltage differential signaling with typical output voltage of 350mV into a: 100-ohm load (PI90LV3811) 50-ohm load (PI90LVB3811) * Propagation delay times less than 2.9ns * Output skew is less than 150ps * Part-to-part skew is less than 1.5ns * 35mW total power dissipation in each driver operating at 200 MHz * Driver is high impedance when disabled or with VCC <1.5V * Bus-pin ESD protection exceeds 10kV * Low voltage TTL (LVTTL) logic inputs are 5V tolerant * Package: 48-Pin TSSOP (A)
Description
The PI90LV3811 and PI90LVB3811 consist of ten differential line drivers that implement the electrical characteristics of low-voltage differential signaling (LVDS). This signaling technique lowers output voltage levels to reduce the power, increase switching speeds, and allow operation with a 3V supply rail. Any current-mode LVDS driver will deliver a minimum differential output voltage magnitude of 247mV into a 100-Ohm load (PI90LV3811) or 50-Ohm load (PI90LVB3811) when enabled. The PI90LVB3811 doubles the output drive current to achieve LVDS levels with a 50-Ohm load. The intended application of this device and signaling technique is for point-to-point baseband (single termination) and multipoint (double termination) data transmission over a controlled impedance media of approximately 100-Ohms. The transmission media may be printed-circuit board traces, backplanes, or cables. The large number of drivers integrated into the same substrate, along with the low pulse skew of balanced signaling, allows extremely precise timing alignment of clock and data for synchronous parallel data transfers. When used with its companion 10-channel receivers, the PI90LV3810 or PI90LVR3810, over 300 million data transfers per second in singleedge clocked systems are possible with very little power. (Note: The ultimate rate and distance of data transfer is dependent upon attenuation characteristics of the media, the noise coupling to the environment, and other system characteristics.) The drivers are enabled in groups of five. When disabled, the driver outputs are a high impedance. Each driver input (DIN) and enable (EN) have an internal pulldown that will drive the input to a low level when open circuited. The PI90LV3811 and PI90LVB3811 are characterized for operation from -40C to 85C.
PI90LV3811 & PI90LVB3811
1
PS8663
02/21/03
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Block Diagram
2
Pin Configuration
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Absolute Maximum Ratings Over Operating Free-Air Temperature (unless otherwise noted)
Supply Voltage Range, VCC(1) ........................................ -0.5V to 4V Voltage Range: Inputs ............................................ -0.5V to 6V DOUT+ or DOUT- ................................................................. -0.5V to 4V Electrostatic Discharge(2): (DOUT+,DOUT- and GND) ................ Class 3, A: 10kV, B:700V (All Pins) ........................................... Class 3, A: 8kV, B:600V Continuous Power Dissipation .... (see dissipation rating table) Storage Temperature Range ............................. -65C to 150C Lead Temperature 1.6mm (1/16 inch) from case for 10 seconds .............................................. 260C 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. Notes: 1. All voltage values, except differential I/O bus voltages, are with respect to ground terminal. 2. Tested in accordance with MIL-STD-883C Method 3015.7 H = high level, L = low level, X = irrelevent, Z = high impedance (off)
Recommended Operating Conditions
M in. Supply Voltage, VCC High- Level Input Voltage, VIH Low- Level Input Voltage, VIL Operating free- air temperature, TA -40 3.0 2.0 0.8 85 C Nom. 3.3 M ax. 3.6 V Units
Driver Function Table
Diffe re ntial Input DIN H L X Open Enable s EN H H L H H L Z L Outputs DOUT+ DOUT- L H Z H
3
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol VOH
VOH
Parameter Differential output voltage magnitude Change in differential output voltage magnitude between logic states Steady-state common-mode output voltage Change in steady-state common-mode output voltage between logic states Peak-to-peak common-mode output voltage
Test Condition RL = 50-Ohm (PI90LVB3811) RL = 100-Ohm (PI90LV3811) CL = 10pF See Figures 1 and 2
Min. 247 -50 1.125
Typ.(1) 340
Max. 454 50 1.375 50
Units
mV
VOC(SS)
VOC(SS)
V mV
See Figure 3
-50 50
VOC(PP)
150 70 120 1.5 20 10 24 12 1 1 A mA
RL = 100-Ohm (PI90LV3811) Enabled, VIN = GND or VCC ICC Supply current RL = 50-Ohm (PI90LVB3811) Enabled, VIN = GND or VDD Disabled, VIN = GND or VDD IIH IIL IOS IOZ IO(OFF) CIN CO High-level input current Low-level input current Short-circuit output current High-impedance output current Power-off output current Input capacitance Output capacitance VIN = 2V VIL = 0.8V VODOUT + or VODOUT - = 0V VOD = 0V VOD = 0V or VCC VCC = 1.5V, VO= 2.45V VI = 0.4 sin (4E6 t) +0.5V VI = 0.4 sin (4E6 t) +0.5V, Disabled
50 77 0.5 3 2
mA
A
5 9.4 pF
Note: 1. All typical values are at 25C and with a 3.3V supply.
4
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Switching Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol tPLH tPHL tr tf tsk(p) tsk(o) tsk(pp) tPZH tPZL tPHZ tPLZ Parameter Propagation delay time, low-to-highlevel output Propagation delay time, high-to-low level output Differential output signal rise time Differential output signal fall time Pulse skew ( I tPHL - tPLH I ) Output skew(2) Part-to-part skew(3) Propagation delay time, highimpedance to high-level output Propagation delay time, highimpedance to low-level output Propagation delay time, high-level to high-impedance output Propagation delay time, high-level to low-impedance output 6.4 5.9 See Figure 5 3.5 3.5 15 15 Test Condition Min. 0.9 0.9 RL = 50-Ohm (PI90LVB3811) RL = 100-Ohm (PI90LV3811) CL = 10pF See Figure 4 0.4 0.4 Typ.(1) 1.7 1.6 0.8 0.8 150 80 Max. 2.9 2.9 1.3 1.3 500 150 1.5 15 15 ps ns Units
ns
Notes: 1. All typical values are at 25C and with a 3.3V supply 2. tsk(o) is the magnitude of the time difference between the tPLH or tPHL of all drivers of a single device with all of their inputs connected together. 3. tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate with the same supply voltages, at the same temperature, and have identical packages and test circuits
5
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Parameter Measurement Information
Figure 1. Voltage and Current Definitions
Figure 2. VOD Test Circuit
Note: 1. All input pulses are supplied by a generator having the following characteristics: tr or tf 1ns, Pulse Repetition Rate (PRR) = 50 Mpps, Pulse width = 10 0.2ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. The measurement of VOC(PP) is made on test equipment with a -3dB bandwidth of at least 300MHz. Figure 3. Test Circuit & Definitions for the Driver Common-Mode Output Voltage
6
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Parameter Measurement Information (continued)
Note: 1. All input pulses are supplied by a generator having the following characteristics: tr or tf 1ns, Pulse Repetition Rate (PRR) = 15 Mpps, Pulse width = 10 0.2ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. Figure 4. Test Circuit, Timing, & Voltage Definitions for the Differential Output Signal
Note: 1. All input pulses are supplied by a generator having the following characteristics: tr or tf 1ns, Pulse Repetition Rate (PRR) = 0.5 Mpps, Pulse width = 500 10ns. CL includes instrumentation and fixture capacitance within 0.06m of the D.U.T. Figure 5. Enable & Disable Time Circuit & Definitions
7
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Typical Characteristics
Supply Current (RMS) vs. Switching Frequency
110 100 90
Low-to-High Propagation Delay Time vs. Free-Air Temperature
tPLH - Low-to-High Propagration Delay Time - ns
2.1 2.0 1.9 1.8 1.7
ICC - Supply Current - mA
VCC =3.6V
VCC = 3.6V
80 70
VCC =3.3V
1.6 1.5 1.4 1.3 -40 -20 0 20 40 60 80 100
VCC = 3.3V
60
VCC =3V
VCC = 3V
50
All inputs loaded & enabled
40 0 50 100 150 200 250 300
f - Frequency - MHz
TA -Free-Air Temperature - C
Figure 6. High-to-Low Propagation Delay Time vs. Free-Air Temperature
2.2
Figure 7.
tPHL - High-to-Low Propagration Delay Time - ns
2.0
VCC =3V
1.8
1.6
VCC =3.3V
1.4
VCC =3.6V
1.2
1.0 -40
-20
0
20
40
60
80
100
TA -Free-Air Temperature - C
Figure 8.
8
PS8663
02/21/03
PI90LV3811/PI90LVB3811 High-Speed Differential Line Drivers
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Packaging Mechanical: 48-Pin TSSOP (A)
48
.236 .244
6.0 6.2
1
.488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE
.004 0.09 .008 0.20 0.45 .018 0.75 .030 .319 BSC 8.1
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010 0.17 0.27
.002 .006 0.05 0.15
Ordering Information
Orde ring Code PI90LV3811A PI90LVB3811A Package Code A48 A48 Package Type 48- pin TSSOP 48- pin TSSOP Ope rating Range -40C to 85C
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
9
PS8663 02/21/03

▲Up To Search▲

Price & Availability of PI90LV3811

	To Download PI90LV3811 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .