LTC1520 查看數據表（PDF） - Linear Technology
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LTC1520 Datasheet PDF : 8 Pages
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LTC1520
TYPICAL PERFORMANCE CHARACTERISTICS
Propagation Delay vs Load
Capacitance (tPLH/tPHL)
30
TA = 25°C
25
VID = 500mV
VCM = 2.5V
20
15
10
5
0
5 15 25 35 55 105 205
LOAD CAPACITANCE (pF)
1520 G06
Supply Current vs Temperature
and Frequency
25
CMRR vs Frequency
46.5
46.0
45.5
45.0
44.5
44.0
43.5
43.0
42.5
TA = 25°C
42.0
10
1k
100k
FREQUENCY (Hz)
10M
LTC1520 G04
Skew vs Temperature (tSKD)
400
25°C
20
0°C
100°C
15
–45°C
10
5
1 RECEIVER SWITCHING
0
0
5
10
15
FREQUENCY (MHz)
20
25
1520 G07
390
380
370
360
350
340
–10 10 30
50 70
90 110
TEMPERATURE (°C)
1520 G08
Supply Current vs Frequency
50
45
ALL 4
RECEIVERS
40
SWITCHING
35
30
25
1 RECEIVER
SWITCHING
20
15
10
5
0
0
5
10
15
20
25
FREQUENCY (MHz)
1520 G05
Output Duty Cycle vs Frequency
50.0
VIN = 50% DUTY CYCLE
49.5
49.0
48.5
48.0
47.5
47.0
46.5
46.0
45.5
0
5
10
15
20
25
FREQUENCY (MHz)
1520 G09
PIN FUNCTIONS
B1 (Pin 1): Receiver 1 Inverting Input.
A1 (Pin 2): Receiver 1 Noninverting Input.
RO1 (Pin 3): Receiver 1 Output.
Enable (Pin 4): Receiver Output Enable Pin. A logic high
input enables the receiver outputs. A logic low input
forces the receiver outputs into a high impedance state.
Do not float.
RO2 (Pin 5): Receiver 2 Output.
A2 (Pin 6): Receiver 2 Noninverting Input.
B2 (Pin 7): Receiver 2 Inverting Input.
GND (Pin 8): Ground Pin. A ground plane is recommended
for all LTC1520 applications.
B3 (Pin 9): Receiver 3 Inverting Input.
A3 (Pin 10): Receiver 3 Noninverting Input.
RO3 (Pin 11): Receiver 3 Output.
NC (Pin 12): No Connection.
RO4 (Pin 13): Receiver 4 Output.
A4 (Pin 14): Receiver 4 Noninverting Input.
B4 (Pin 15): Receiver 4 Inverting Input.
VDD (Pin 16): 5V Supply Pin. This pin should be decoupled
with a 0.1µF ceramic capacitor as close as possible to the
pin. Recommended: VDD = 5V ±5%.
4
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