LTC488 데이터 시트보기 (PDF) - Linear Technology
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LTC488 Datasheet PDF : 12 Pages
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LTC488/LTC489
PIN FUNCTIONS
B 1 (Pin 1): Receiver 1 Input.
A1 (Pin 2): Receiver 1 Input.
RO1 (Pin 3): Receiver 1 Output. If the receiver output
is enabled, then if A > B by 200mV, RO1 will be high. If
A < B by 200mV, then RO1 will be low.
EN (Pin 4) LTC488: Receiver Output Enabled. See Function
Table for details.
EN12 (Pin 4) LTC489: Receiver 1, Receiver 2 Output
Enabled. See Function Table for details.
RO2 (Pin 5): Receiver 2 Output. Refer to RO1.
A2 (Pin 6): Receiver 2 Input.
B2 (Pin 7): Receiver 2 Input.
GND (Pin 8): Ground Connection.
B3 (Pin 9): Receiver 3 Input.
A3 (Pin 10): Receiver 3 Input.
RO3 (Pin 11): Receiver 3 Output. Refer to RO1.
EN (Pin 12) LTC488: Receiver Output Disabled. See Func-
tion Table for details.
EN34 (Pin 12) LTC489: Receiver 3, Receiver 4 output
enabled. See Function Table for details.
RO4 (Pin 13): Receiver 4 Output. Refer to RO1.
A4 (Pin 14): Receiver 4 Input.
B4 (Pin 15): Receiver 4 Input.
VCC (Pin 16): Positive Supply; 4.75V ≤ VCC ≤ 5.25V.
FUNCTION TABLES
LTC488
DIFFERENTIAL
A–B
VID ≥ 0.2V
–0.2V < VID < 0.2V
VID ≤ 0.2V
X
ENABLES
EN
EN
H
X
X
L
H
X
X
L
H
X
X
L
L
H
OUTPUT
RO
H
H
?
?
L
L
Z
LTC489
DIFFERENTIAL
A–B
VID ≥ 0.2V
–0.2V < VID < 0.2V
VID ≤ 0.2V
X
H: High Level
L: Low Level
X: Irrelevant
ENABLES
OUTPUT
EN12 or EN34
RO
H
H
H
?
H
L
L
Z
?: Indeterminate
Z: High Impedance (Off)
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