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参数资料
| 型号： | LTC1323CSW#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC TXRX EIA562 5V SINGLE 24-SOIC |
| 标准包装： | 32 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | AppleTalk |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 管件 |
6
LTC1323
PI FU CTIO S
U
UU
LTC1323CSW
C1+: C1 Positive Input. Connect a 0.33
F capacitor be-
tween C1+ and C1–.
C1–: C1 Negative Input. Connect a 0.33
F capacitor be-
tween C1+ and C1–.
CPEN: TTL Level Charge Pump Enable Input. With CPEN
held low, the charge pump is enabled and the chip oper-
ates normally. When CPEN is pulled high, the charge
pump is disabled as well as both drivers, the noninverting
single-ended receiver, and the differential receiver. The
inverting single-ended receiver (RXI) is kept alive to
monitor the control line and ICC drops to 65A. To turn
off the receiver and drop ICC to 0.5A, pull the SHDN pin
high.
TXD: Differential Driver Input (TTL compatible).
TXI: Single-Ended Driver Input (TTL compatible).
TXDEN: Differential Driver Output Enable (TTL compat-
ible). A high level on this pin forces the differential driver
into three-state; a low level enables the driver. This input
does not affect the single-ended driver.
SHDN: Shutdown Input (TTL compatible). When this pin
is high, the chip is shut down. All driver and receiver
outputs are three-state, the charge pump turns off, and the
supply current drops to 0.5
A. A low level on this pin
allows normal operation.
RXEN: Receiver Enable (TTL compatible). A high level
on this pin disables the receivers and three-states the
logic outputs; a low level allows normal operation.
RXO: Inverting Single-Ended Receiver Output. Remains
active in the receiver keep-alive mode.
RXO: Noninverting Single-Ended Receiver Output.
RXDO: Differential Receiver Output.
GND: Signal Ground. Connect to PGND with 24-pin
package.
PGND: Power ground is connected internally to the charge
pump and differential driver. Connect to the GND pin.
RXD+: Differential Receiver Noninverting Input. When this
pin is
≥200mV above RXD–, RXDO will be high; when this
pin is
≥200mV below RXD–, RXDO will be low.
RXD–: Differential Receiver Inverting Input.
RXI: Noninverting Receiver Input. This input controls the
RXO output.
RXI: Inverting Receiver Input. This input controls the RXO
output. In receiver keep-alive mode (CPEN high, SHDN
low), this receiver can be used to monitor a wake-up
control signal.
DX
CHARGE PUMP
DX
RX
C1+
C1–
CPEN
TXD
TXI
TXDEN
SHDN
RXEN
RXO
RX0
RXDO
GND
VCC
VEE
C2+
C2–
TXD–
TXD+
TXO
RXI
RXD–
RXD+
PGND
24
21
23
22
20
19
18
17
16
15
14
13
1
4
2
3
5
6
7
8
9
10
11
12
LTC1323CG
DX
CHARGE PUMP
DX
RX
C1+
C1–
CPEN
TXD
TXI
TXDEN
SHDN
RXEN
RXO
RX0
RXDO
NC
GND
NC
VCC
VEE
C2+
C2–
TXD–
NC
TXD+
TXO
RXI
RXD–
RXD+
PGND
28
25
27
26
24
23
22
21
20
19
18
17
15
16
1
4
2
3
5
6
7
8
9
10
11
12
13
14
LTC1323CS
DX
CHARGE PUMP
RX
C1+
C1–
TXD
TXDEN
SHDN
RXEN
RXDO
GND
VCC
VEE
C2+
C2–
TXD–
TXD+
RXD–
RXD+
16
13
15
14
12
11
10
9
1
4
2
3
5
6
7
8
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