LTC1546I 查看數據表（PDF） - Linear Technology
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LTC1546I Datasheet PDF : 20 Pages
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LTC1546
PI FU CTIO S
R3 B (Pin 15): Receiver 3 Noninverting Input.
R3 A (Pin 16): Receiver 3 Inverting Input.
R2 B (Pin 17): Receiver 2 Noninverting Input.
R2 A (Pin 18): Receiver 2 Inverting Input.
D3/R1 B (Pin 19): Receiver 1 Noninverting Input and
Driver 3 Noninverting Output.
D3/R1 A (Pin 20): Receiver 1 Inverting Input and Driver 3
Inverting Output.
D2 B (Pin 21): Driver 2 Noninverting Output.
D2 A (Pin 22): Driver 2 Inverting Output.
D1 B (Pin 23): Driver 1 Noninverting Output.
D1 A (Pin 24): Driver 1 Inverting Output.
GND (Pin 25): Ground.
VEE (Pin 26): Negative Supply Voltage. Connect a 3.3µF
capacitor to GND.
C2 – (Pin 27): Capacitor C2 Negative Terminal. Connect a
1µF capacitor between C2 + and C2 –.
C2 + (Pin 28): Capacitor C2 Positive Terminal. Connect a
1µF capacitor between C2+ and C2 –.
BLOCK DIAGRA
C1– 1
C1+ 2
VDD 3
VCC 4
D1 5
D2 6
D3 7
DCE/DTE 14
R1 8
R2 9
R3 10
6
D1
D2
D3
R1
R2
R3
CHARGE PUMP
C1– C2+
C1+ C2–
VDD VEE
VCC GND
50Ω
S1
S2 125Ω
50Ω
50Ω
S1
S2 125Ω
50Ω
10k 20k
6k
S3
S2 125Ω
51.5Ω
S1
10k 20k
51.5Ω
20k
10k
6k
S3 S2
125Ω
51.5Ω
10k
51.5Ω
20k
20k
10k
6k
S3 S2
125Ω
51.5Ω
10k
20k
51.5Ω
28 C2+
27 C2–
26 VEE
25 GND
24 D1A
23 D1B
22 D2A
21 D2B
20 D3/R1 A
19 D3/R1 B
18 R2A
17 R2B
16 R3A
15 R3B
1546 BD
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