Datasheet
LTC2801/LTC2802/
LTC2803/LTC2804
12
2801234fe
2801 F17
LTC2803
R T
1.8V TO 5.5V
V
CC
V
L
PS
MODE
5
12
10
11
13
15
14
16
T2OUT
R2IN
T1OUT
R1IN
T2IN
R2OUT
T1IN
R1OUT
4
2
3
1
8
GND
3.3k
3.3k
2801 F16
LTC2802
R T
V
CC
V
L
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
3.3k
1.8V TO 5.5V
2801 F15
LTC2802
R T
V
CC
V
L
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
1.8V TO 5.5V
2801 F14
LTC2804-1
OFF ON
1.8V TO 5.5V
V
CC
V
L
ON/OFF
5
12
11
13
14
15
16
T2OUT
T1OUT
R2IN
R1IN
T2IN
T1IN
R2OUT
R1OUT
4
3
2
1
8
GND
2801 F13
LTC2802
V
CC
V
L
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
5V
µP
3V
2801 F12
LTC2801
V
CC
V
L
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
1.8V
µP
5V
2801 F11
LTC2804
V
CC
V
L
PS
MODE
5
12
10
11
13
14
15
16
T2OUT
T1OUT
R2IN
R1IN
T2IN
T1IN
R2OUT
R1OUT
4
3
2
1
RTS
TD
CTS
RD
V
BATT
RTS
TD
CTS
RD
8
GND
PERIPHERAL
CELL PHONE
1.8V TO 5.5V
tyPical aPPlicationS
2801 F10
LTC2803
RA ON
1.8V TO 5.5V
V
CC
V
L
MODE
PS
5
12
11
10
13
14
15
16
T2OUT
T1OUT
R2IN
R1IN
T2IN
T1IN
R2OUT
R1OUT
4
3
2
1
8
GND
Figure 16. Half-Duplex on Single LineFigure 15. Half-Duplex on Single Line,
Separate ROUT, TIN
Figure 14. Power-Saving Shutdown ModeFigure 13. 5V Microprocessor InterfaceFigure 12. 1.8V Microprocessor Interface
Figure 11. Cellphone Peripheral InterfaceFigure 10. Power-Saving Receivers-Active Mode
Figure 17. Half-Duplex Dual Transceiver
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.