TI1 DS9638QML Rs-422 dual high speed differential line driver Datasheet

DS9638QML
DS9638QML RS-422 Dual High Speed Differential Line Driver
Literature Number: SNOSB15
DS9638QML
RS-422 Dual High Speed Differential Line Driver
General Description
Features
The DS9638 is a Schottky, TTL compatible, dual differential
line driver designed specifically to meet the EIA Standard
RS-422 specifications. It is designed to provide unipolar differential drive to twisted pair or parallel wire transmission
lines. The inputs are TTL compatible. The outputs are similar
to totem pole TTL outputs, with active pull-up and pull-down.
The device features a short circuit protected active pull-up
with low output impedance and is specified to drive 50Ω transmission lines at high speed. The mini-DIP provides high package density.
■
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■
■
■
■
■
■
■
■
■
■
Single 5V supply
Schottky technology
TTL and CMOS compatible inputs
Output short circuit protection
Input clamp diodes
Complementary outputs
Minimum output skew (<1.0 ns typical)
50 mA output drive capability for 50Ω transmission lines
Meets EIA RS-422 specifications
Propagation delay of less than 10 ns
“Glitchless” differential output
Delay time stable with VCC and temperature variations
(<2.0 ns typical) (Figure 3)
■ Extended temperature range
Ordering Table
NS PART NUMBER
SMD PART NUMBER
DS9638J/883
5962–8754601PA
NS PACKAGE NUMBER
J08A
PACKAGE DISCRIPTION
8LD CERAMIC DIP
Connection Diagram
8-Lead DIP
30059001
Top View
See NS Package Number J08A
© 2008 National Semiconductor Corporation
300590
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DS9638QML RS-422 Dual High Speed Differential Line Driver
May 27, 2008
DS9638QML
Absolute Maximum Ratings (Note 1)
Storage Temperature Range
Ceramic DIP
Lead Temperature
Ceramic DIP (Soldering, 60 sec.)
Maximum Power Dissipation at 25°C (Note 2)
Cavity Package
VCC Lead Potential to Ground
Input Voltage
−65°C to +175°C
300°C
1300 mW
−5V to 7V
−0.5V to +7V
Recommended Operating Conditions
DS9638J/883
Supply Voltage (VCC)
Output Current HIGH (IOH )
Output Current LOW (IOL )
Operating Temperature (T A)
Min
4.5
−55
Max
5.5
−50
50
125
Units
V
mA
mA
°C
Quality Conformance Inspection
MIL-STD-883, Method 5005 - Group A
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Subgroup
Description
Temp (°C)
1
Static tests at
+25°C
2
Static tests at
+125°C
3
Static tests at
-55°C
4
Dynamic tests at
+25°C
5
Dynamic tests at
+125°C
6
Dynamic tests at
-55°C
7
Functional tests at
+25°C
8A
Functional tests at
+125°C
8B
Functional tests at
-55°C
9
Switching tests at
+25°C
10
Switching tests at
+125°C
11
Switching tests at
-55°C
12
Setting time at
+25°C
13
Setting time at
+125°C
14
Setting time at
-55°C
2
DC Parameters
Over recommended operating temperature and supply voltage ranges, unless otherwise specified
Symbol
Parameter
Conditions
Notes
Units
SubGroups
V
1, 2, 3
-1.2
V
1, 2, 3
2
V
1, 2, 3
Min
VOL
Output Voltage Low
VCC = 4.5V, FIOL = 30mA for temp,
(Note 3)
FIOL = 35mA for room
VFCD
Input Clamped Voltage
VCC = 4.5V, FIFCD = -18mA
VOHQVT
VT, VT Terminated Output
Voltage
VCC = 5.5V, RO = 100 Ω
VOH
Logical "1" Output Voltage
VCC = 4.5V, FIOH = -10mA
VOHQ
Logical "1" Output Voltage
VCC = 4.5V, FIOHQ = -40mA
VOHQBAL
VT- VT Output Balance
VCC = 5.5V, RO = 100 Ω
-0.4
IIL
Logical "0" Input Current
VCC = 5.5V, FVIIL= 0.5V
-200
IIH
Logical "1" Input Current
VCC = 5.5V, FVIIH = 2.7V
IIHQH
Logical "1" Input Current
VCC = 5.5V, FVIIHQH = 5.5V
IOS
Output Short Circuit Current
Max
0.5
2.5
V
2.0
2.0
V
1.0
0.4
Supply Current
VCC = 5.5V, FVCCH = 5.5V
IOHC
IO (off) Output Leakage
VCC = 5.5V, FVOH = 5.5V
VOS, VOS
Output Offset Voltage
(Note 5)
VOS- VOS
Output Offset Balance
(Note 4)
VIH
Input High Voltage
(Note 6)
VIL
Input Low Voltage
VHB
IX Output Leakage
VCC = 0.0V, FIOHBQI = 150 μA
ICEX
Output Leakage Current
VCC = 0.0V, FVCEX = 5.5V
ICEXQI
Output Leakage Current
VCC = 0.0V, FVICEXQ2 = -0.25V
1, 2, 3
1, 2, 3
μA
1, 2, 3
50
μA
1, 2, 3
mA
1
2, 3
65
mA
1
75
mA
2, 3
200
μA
1
3
V
1, 2, 3
.4
V
1, 2, 3
V
1, 2, 3
V
1, 2, 3
V
1
μA
2, 3
μA
2, 3
Max
Units
SubGroups
2
(Note 6)
2, 3
V
μA
-150 -40
ICC
1
25
-150 -50
VCC = 5.5V, FVIOS = 0V
1
2, 3
0.5
5.55
150
-150
AC Parameters
Over recommended operating temperature and supply voltage ranges, unless otherwise specified
Symbol
Parameter
Conditions
Notes
Min
tPLH
Propagation Delay to High Level VCC = 5V, RO = 100 Ω, CL = 15PF
20
nS
9
tPHL
Propagation Delay to Low Level VCC = 5V, RO = 100 Ω, CL = 15PF
20
nS
9
tF
Fall Time
VCC = 5V, 90% - 10%
20
nS
9
tR
Rise Time
VCC = 5V, 10% - 90%
20
nS
9
Note 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 tables of “Electrical Characteristics provide conditions for actual device operation.
Note 2: Derate cavity package 8.7 mW/°C above 25°C.
Note 3: 35mA is more stringent than 30mA.
Note 4: Guaranteed by Vt- VT test.
Note 5: Guaranteed by design.
Note 6: Guaranteed by VOH & VOL tests.
3
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DS9638QML
DS9638J/883 Electrical Characteristics
DS9638QML
30059002
FIGURE 1. Equivalent Circuit
DC Test Circuit
30059003
FIGURE 2. Terminated Output Voltage and Output Balance
CL includes probe and jig capacitance.
PRR = 500 kHz, tW = 100 ns,
tr ≤ 5.0 ns, ZO = 50Ω.
30059004
Note 7: The pulse generator has the following characteristics:
30059005
FIGURE 3. AC Test Circuit and Voltage Waveform
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4
DS9638QML
30059006
30059007
FIGURE 4. Typical Delay Characteristics
5
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DS9638QML
Revision History
Date
Released
05/27/08
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Revision
A
Section
Originator
Changes
New Release, Corporate Format,
Change to DC Electrical Section
Bill Petcher
1 MDS data sheet converted into one Corp.
data sheet format. Change made to VOH,
VOHQ and IOS. MNDS9638-X, Rev. 0AL data
sheet will be Archived.
6
DS9638QML
Physical Dimensions inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package (J)
NS Package Number J08A
7
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DS9638QML RS-422 Dual High Speed Differential Line Driver
Notes
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