LTC1321 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1321' PDF : 20 Pages View PDF
APPLICATI S I FOR ATIO
LTC1321/LTC1322/LTC1335
1
TXD
TXI 2
3
TXDEN
4
5
RXEN
6
RXO
RXO 7
RXDO 8
9
LTC1320
18 5V
17 TXD– RFI
16 TXD+
RFI
15
14
5V
13
1k
1k
12
11
10
RXD –
RXD +
RFI
RFI
120Ω
120Ω
22Ω
RFI =
22Ω
100pF
OE 1
1k
2
RFI
1k
3
RFI
RFI 4
RFI 5
SEL1, 5V 6
7
SEL2, 5V
8
9
10
11
12
Figure 15. Apple LocalTalk Implemented Using
LTC1320 and LTC1335 Transceivers
LTC1335
24
5V
23
22
RA1
21 DE1
20 DY1
19 5V
18
5V
17
16
15
14
13 –5V
1321/22/35 F15
TXD 1
TXI 2
3
TXDEN
4
5
RXEN
RXO 6
7
RXO
RXDO 8
9
LTC1320
18
5V
17 TXD– RFI
16 TXD+ RFI
15 TXO RFI
14 – 5V
13 RXI RFI
12 RXI
11 RXD– RFI
RFI
10 RXD+
RFI
120Ω
120Ω
22Ω
RFI =
22Ω
100pF
120Ω
120Ω
1
OE
2
RFI
3
RFI
4
RFI
RFI 5
SEL1, 5V 6
SEL2 7
8
RFI
9
RFI
10
RFI
11
12
Figure 16. AppleTalk Direct Connect Using LTC1320
for DTE and LTC1335 for DCE Transceivers
LTC1335
24
5V
23
22
RA1
21
DE1
20 DY1
19
5V
18
5V
17
DY2
16
DZ2
15
RA2
14
13 –5V
1321/22/35 F16
15
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