LTC1546I View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1546I Datasheet PDF : 20 Pages
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LTC1546
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (Notes 2, 3)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
IOH
Transmitter Output High Current
IOL
Transmitter Output Low Current
IOZ
Transmitter Output Leakage Current
ROD
Transmitter Differential Mode Impedance
ROC
Transmitter Common Mode Impedance
tr, tf
Rise or Fall Time
t PLH
Input to Output
t PHL
Input to Output
∆t
Input to Output Difference, tPLH – tPHL
t SKEW
Output to Output Skew
V.35 Receiver
VA, VB = 0V
VA, VB = 0V
VA and VB ≤ 0.25V
– 2V ≤ VCM ≤ 2V (Figure 7)
(Figures 8, 13)
(Figures 8, 13)
(Figures 8, 13)
(Figures 8, 13)
(Figures 8, 13)
q – 13
q 9.0
q
q 50
135
q 15
q 15
q
– 11 – 9.0
11
13
±1 ±100
100 150
150 165
5
35
65
35
65
0
16
4
VTH
Differential Receiver Input Threshold Voltage
∆VTH
Receiver Input Hysteresis
RID
Receiver Differential Mode Impedance
RIC
Receiver Common Mode Impedance
tr, tf
Rise or Fall Time
tPLH
Input to Output
tPHL
Input to Output
∆t
Input to Output Difference, tPLH – tPHL
V.28 Driver
– 2V ≤ VCM ≤ 2V (Figure 9)
– 2V ≤ VCM ≤ 2V (Figure 9)
– 2V ≤ VCM ≤ 2V
– 2V ≤ VCM ≤ 2V (Figure 10)
CL = 50pF (Figures 4, 14)
CL = 50pF (Figures 4, 14)
CL = 50pF (Figures 4, 14)
CL = 50pF (Figures 4, 14)
q – 0.2
0.2
q
15
40
q 90
103 110
135 150 165
15
q
50
90
q
50
90
q
0
4
25
VO
Output Voltage
ISS
Short-Circuit Current
ROZ
Power-Off Resistance
Open Circuit
RL = 3k (Figure 11)
VOUT = GND
– 2V < VO < 2V, Power Off
or No-Cable Mode
q
q ±5
q
q 300
± 10
±8.5
±150
SR
Slew Rate
t PLH
Input to Output
t PHL
Input to Output
V.28 Receiver
RL = 7k, CL = 0 (Figures 11, 15)
q
4
RL = 3k, CL = 2500pF (Figures 11, 15)
q
RL = 3k, CL = 2500pF (Figures 11, 15)
q
30
1.5
2.5
1.5
2.5
VTHL
VTLH
∆VTH
RIN
tr, tf
tPLH
tPHL
Input Low Threshold Voltage
Input High Threshold Voltage
Receiver Input Hysteresis
Receiver Input Impedance
Rise or Fall Time
Input to Output
Input to Output
(Figure 12)
(Figure 12)
(Figure 12)
– 15V ≤ VA ≤ 15V
CL = 50pF (Figures 12, 16)
CL = 50pF (Figures 12, 16)
CL = 50pF (Figures 12, 16)
q
q
2
q
0
q
3
q
q
1.2
0.8
1.2
0.05
0.3
5
7
15
60
300
160 300
UNITS
mA
mA
µA
Ω
Ω
ns
ns
ns
ns
ns
V
mV
Ω
Ω
ns
ns
ns
ns
V
V
mA
Ω
V/µs
µs
µs
V
V
V
kΩ
ns
ns
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
are negative. All voltages are referenced to device ground unless otherwise
specified.
Note 3: All typicals are given for VCC = 5V, C1 = C2 = CVCC = CVDD = 1µF,
CVEE = 3.3µF and TA = 25°C.
4
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