LTC2801/LTC2802/
LTC2803/LTC2804
2801234fe
2801 F17
LTC2803
R T
1.8V TO 5.5V
VCC
VL
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
2801 F16
LTC2802
R T
VCC
VL
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
VCC
VL
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
VCC
VL
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
VCC
VL
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
5V
P
3V
2801 F12
LTC2801
VCC
VL
PS
MODE
3
10
8
9
11
12
TOUT
RIN
TIN
ROUT
2
1
6
GND
1.8V
P
5V
2801 F11
LTC2804
VCC
VL
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
VBATT
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
VCC
VL
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 Line
Figure 15. Half-Duplex on Single Line,
Separate ROUT, TIN
Figure 14. Power-Saving Shutdown Mode
Figure 13. 5V Microprocessor Interface
Figure 12. 1.8V Microprocessor Interface
Figure 11. Cellphone Peripheral Interface
Figure 10. Power-Saving Receivers-Active Mode
Figure 17. Half-Duplex Dual Transceiver