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
fOSC
Charge Pump Oscillator Frequency
500
tr
Charge Pump Rise Time
No-Cable Mode/Power-Off to Normal Operation
2
Logic Inputs and Outputs
VIH
Logic Input High Voltage
VIL
Logic Input Low Voltage
IIN
Logic Input Current
VOH
Output High Voltage
VOL
Output Low Voltage
IOSR
Output Short-Circuit Current
IOZR
Three-State Output Current
V.11 Driver
D1, D2, D3
M0, M1, M2, DCE = GND
M0, M1, M2, DCE = VCC
IO = – 3mA
IO = 3mA
0V ≤ VO ≤ VCC
M0 = M1 = M2 = VCC, 0V ≤ VO ≤ VCC
q
2
q
0.8
q
± 10
q – 120 – 75 – 30
q
± 10
q
3
4.5
q
0.3
0.45
q – 50
50
±1
VODO
VODL
∆VOD
Open Circuit Differential Output Voltage
Loaded Differential Output Voltage
Change in Magnitude of Differential
Output Voltage
RL = 1.95k (Figure 1)
RL = 50Ω (Figure 1)
RL = 50Ω (Figure 1)
RL = 50Ω (Figure 1)
q
0.5VODO
q ±2
q
±5
0.67VODO
0.2
VOC
∆VOC
Common Mode Output Voltage
Change in Magnitude of Common Mode
Output Voltage
RL = 50Ω (Figure 1)
RL = 50Ω (Figure 1)
q
3
q
0.2
ISS
Short-Circuit Current
IOZ
Output Leakage Current
VOUT = GND
VA and VB ≤ 0.25V, Power Off or
q
No-Cable Mode or Driver Disabled
±150
± 1 ±100
tr, tf
Rise or Fall Time
t PLH
Input to Output Rising
t PHL
Input to Output Falling
∆t
Input to Output Difference, tPLH – tPHL
t SKEW
Output to Output Skew
V.11 Receiver
(Figures 2, 13)
(Figures 2, 13)
(Figures 2, 13)
(Figures 2, 13)
(Figures 2, 13)
q
2
15
25
q 15
40
65
q 15
40
65
q
0
3
12
3
VTH
Input Threshold Voltage
∆VTH
Input Hysteresis
RIN
Input Impedance
tr, tf
Rise or Fall Time
t PLH
Input to Output Rising
t PHL
Input to Output Falling
∆t
Input to Output Difference, tPLH – tPHL
V.35 Driver
– 7V ≤ VCM ≤ 7V
– 7V ≤ VCM ≤ 7V
–7V ≤ VCM ≤ 7V (Figure 3)
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 100
103
15
q
50
90
q
50
90
q
0
4
25
VOD
Differential Output Voltage
VOA, VOB
VOC
Single-Ended Output Voltage
Transmitter Output Offset
Open Circuit, RL = 1.95k (Figure 5)
With Load, – 4V ≤ VCM ≤ 4V (Figure 6)
Open Circuit, RL = 1.95k (Figure 5)
RL = 50Ω (Figure 5)
q
±0.44 ±0.55
q
q
±1.2
±0.66
±1.2
±0.6
UNITS
kHz
ms
V
V
µA
µA
µA
V
V
mA
µA
V
V
V
V
V
V
mA
µA
ns
ns
ns
ns
ns
V
mV
Ω
ns
ns
ns
ns
V
V
V
V
3
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