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Электронный компонент: UA9639

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uA9639C
DUAL DIFFERENTIAL LINE RECEIVER
SLLS113C OCTOBER 1986 REVISED MARCH 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
Operates From Single 5-V Power Supply
D
Wide Common-Mode Voltage Range
D
High Input Impedance
D
TTL-Compatible Outputs
D
High-Speed Schottky Circuitry
D
8-Pin Dual-In-Line Packages
D
Designed to Be Interchangeable With
National DS9639AC
description
The uA9639C is a dual differential line receiver designed to meet ANSI Standards EIA/TIA-422-B and
EIA/TIA-423-B and ITU Recommendations V.10 and V.11. It utilizes Schottky circuitry and has TTL-compatible
outputs. The inputs are compatible with either a single-ended or a differential-line system. This device operates
from a single 5-V power supply and is supplied in an 8-pin, dual-in-line package.
The uA9639C is characterized for operation from 0
C to 70
C.
logic symbol
2OUT
1OUT
5
6
7
8
2IN
2IN +
1IN
1IN +
3
2
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
logic diagram
2IN
2IN +
1IN
1IN +
5
6
7
8
3
2
2OUT
1OUT
Copyright
1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
8
7
6
5
V
CC
1OUT
2OUT
GND
1IN +
1IN
2IN +
2IN
P PACKAGE
(TOP VIEW)
uA9639C
DUAL DIFFERENTIAL LINE RECEIVER
SLLS113C OCTOBER 1986 REVISED MARCH 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
TYPICAL OF ALL OUTPUTS
Output
VCC
50
NOM
Current
Source
Input
8 k
VCC
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(see Note 2)
15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
O
(see Note 1)
0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low-level output current, I
OL
50
mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
0
C to 70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 input voltage, are with respect to the network ground terminal.
2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input.
DISSIPATION RATING TABLE
PACKAGE
TA
25
C
POWER RATING
OPERATING FACTOR
ABOVE TA = 25
C
TA = 70
C
POWER RATING
P
1000 mW
8.0 mW/
C
640 mW
uA9639C
DUAL DIFFERENTIAL LINE RECEIVER
SLLS113C OCTOBER 1986 REVISED MARCH 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC
4.75
5
5.25
V
Common-mode input voltage, VIC
7
V
Operating free-air temperature, TA
0
70
C
electrical characteristics over recommended ranges of supply voltage, common-mode input
voltage, and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT
Positive going input threshold voltage
See Note 3
0.2
V
VIT +
Positive-going input threshold voltage
See Note 3
0.4
V
V
Negative going input threshold voltage
See Note 3
0.2
V
VIT
Negative-going input threshold voltage
See Note 3
0.4
V
Vhys
Hysteresis voltage (VIT+ VIT )
70
mV
VOH
High-level output voltage
VID = 0.2 V,
IO = 1 mA
2.5
3.5
V
VOL
Low-level output voltage
VID = 0.2 V,
IO = 20 mA
0.35
0.5
V
II
Input current
VCC = 0 to 5.5 V,
VI = 10 V
1.1
3.25
mA
II
Input current
CC
,
See Note 4
VI = 10 V
1.6
3.25
mA
IOS
Short-circuit output current
VO = 0,
VID = 0.2 V
40
75
100
mA
ICC
Supply current
VID = 0.5 V,
No load
35
50
mA
All typical values are at VCC = 5 V, TA = 25
C.
The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels
only.
Only one output should be shorted at a time, and duration of the short circuit should not exceed one second.
NOTES:
3. The expanded threshold parameter is tested with a 500-
resistor in series with each input.
4. The input not under test is grounded.
switching characteristics, V
CC
= 5 V, T
A
= 0
C to 70
C
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
CL = 50 pF
See Figure 1
85
ns
tPHL
Propagation delay time, high- to low-level output
CL = 50 pF,
See Figure 1
85
ns
uA9639C
DUAL DIFFERENTIAL LINE RECEIVER
SLLS113C OCTOBER 1986 REVISED MARCH 1997
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VCC +
Output
VCC +
Input
51
392
3.92 k
CL
(see Note A)
Input
(see Note B)
Output
0.5 V
0.5 V
50%
50%
tPLH
tPHL
1.5 V
1.5 V
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: tr
5 ns, tf
5 ns, PRR
5 MHz, duty cycle = 50%.
Figure 1. Test Circuit and Voltage Waveforms
TYPICAL CHARACTERISTICS
Figure 2
100
4
100
0
50
0
50
1
2
3
OUTPUT VOLTAGE
vs
DIFFERENTIAL INPUT VOLTAGE
VO Output V
oltage V
VID Differential Input Voltage mV
V
O
3.5
2.5
1.5
0.5
VCC = 4.75 V
TA = 25
C
VIC = 0
VIC =
7 V
VIC = 0
VIC =
7 V
2 5
25
75
7 5
Figure 3
VID Differential Input Voltage mV
3
2
1
0
4
50
0
50
100
100
TA = 25
C
OUTPUT VOLTAGE
vs
DIFFERENTIAL INPUT VOLTAGE
VO Output V
oltage V
V
O
VCC = 5.25 V
3.5
2.5
1.5
0.5
7 5
2 5
25
75
VIC = 0
VIC =
7 V
VIC = 0
VIC =
7 V
uA9639C
DUAL DIFFERENTIAL LINE RECEIVER
SLLS113C OCTOBER 1986 REVISED MARCH 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 4
2.5
2
0.5
0
0
3.5
4.5
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
5
1.5
4
3
1
IOH High-Level Output Current mA
OH
V
High-Level Ouput V
oltage V
10
20
30
40
50
60
70
80
VCC = 5 V
VID = 0.2 V
TA = 25
C
Figure 5
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.3
0.2
0.1
0
0
5
10
15
20
25
0.4
0.5
0.6
30
35
40
IOL Low-Level Output Current mA
OL
V
Low-Level Output V
oltage V
VCC = 5 V
VID = 0.2 V
TA = 25
C
50
40
10
0
0
1
2
3
4
5
6
70
90
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
100
7
8
30
80
60
20
VCC Supply Voltage V
CCI
Supply Current mA
No Load
Inputs Open
TA = 25
C
Figure 6