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DP8392B Datasheet(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DP8392B
Description  Coaxial Transceiver Interface
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DP8392B Datasheet(HTML) 6 Page - National Semiconductor (TI)

 
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60 Absolute Maximum Ratings (Note 1)
Supply Voltage (VEE)
b
12V
Package Power Rating at 25 C
35 Watts
(PC Board Mounted)
See Section 5
Derate linearly at the rate of 286 mW C
Input Voltage
0 to b12V
Storage Temperature
b
65 to 150 C
Lead Temp (Soldering 10 seconds)
260 C
For actual power dissipation of the device please refer to section 70
Recommended Operating
Conditions
Supply Voltage (VEE)
b
9v g5%
Ambient Temperature
0 to 70 C
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
70 Electrical Characteristics VEE eb9V g5% TA e 0 to 70 C (Notes23)
Symbol
Parameter
Min
Typ
Max
Units
IEE1
Supply current out of VEE pinnon transmitting
b
85
b
130
mA
IEE2
Supply current out of VEE pintransmitting
b
125
b
180
mA
IRXI
Receive input bias current (RXI)
b
2
a
25
m
A
ITDC
Transmit output dc current level (TXO)
37
41
45
mA
ITAC
Transmit output ac current level (TXO)
g
28
ITDC
mA
VCD
Collision threshold (Receive mode)
b
145
b
153
b
158
V
VOD
Differential output voltage (RXg CDg)
g
550
g
1200
mV
VOC
Common mode output voltage (RXg CDg)
b
15
b
20
b
25
V
VOB
Diff output voltage imbalance (RXg CDg)
g
40
mV
VTS
Transmitter squelch threshold (TXg)
b
175
b
225
b
300
mV
CX
Input capacitance (RXI)
12
pF
RRXI
Shunt resistancenon transmitting (RXI)
100
KX
RTXO
Shunt resistancetransmitting (TXO)
75
10
KX
80 Switching Characteristics VEE eb9V g5% TA e 0 to 70 C (Note 3)
Symbol
Parameter
Fig
Min
Typ
Max
Units
tRON
Receiver startup delay (RXI to RXg)
5
11
4
5
bits
tRd
Receiver propagation delay (RXI to RXg)
511
15
50
ns
tRr
Differential outputs rise time (RXg CDg)
511
4
7
ns
tRf
Differential outputs fall time (RXg CDg)
511
4
7
ns
tRJ
Receiver
cable total jitter
10
g
2ns
tTST
Transmitter startup delay (TXg to TXO)
6
11
1
2
bits
tTd
Transmitter propagation delay (TXg to TXO)
6
11
5
25
50
ns
tTr
Transmitter rise time
10% to 90% (TXO)
6
11
20
25
30
ns
tTf
Transmitter fall time
90% to 10% (TXO)
6
11
20
25
30
ns
tTM
tTr and tTf mismatch
05
ns
tTS
Transmitter skew (TXO)
g
05
ns
tTON
Transmit turn-on pulse width at VTS (TXg)
6
11
5
20
40
ns
tTOFF
Transmit turn-off pulse width at VTS (TXg)
6
11
130
250
340
ns
tCON
Collision turn-on delay
7
11
7
13
bits
tCOFF
Collision turn-off delay
7
11
20
bits
fCD
Collision frequency (CDg)
7
11
85
125
MHz
tCP
Collision pulse width (CDg)
711
35
70
ns
tHON
CD Heartbeat delay (TXg to CDg)
8
11
06
16
m
s
tHW
CD Heartbeat duration (CDg)
8
11
05
10
15
m
s
tJA
Jabber activation delay (TXg to TXO and CDg)
911
20
29
60
ms
tJR
Jabber reset unjab time (TXg to TXO and CDg)
9
11
250
500
750
ms
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 device
should be operated at these limits
Note 2
All currents into device pins are positive all currents out of device pins are negative All voltages referenced to ground unless otherwise specified
Note 3
All typicals are given for VEE eb9V and TA e 25 C
6


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