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參數(shù)資料
| 型號(hào)： | RX5003 |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 303.825 MHz Hybrid Receiver |
| 中文描述： | 303.825兆赫混合接收機(jī) |
| 文件頁(yè)數(shù)： | 11/11頁(yè) |
| 文件大?。?/td> | 103K |
| 代理商： | RX5003 |
Pin
Name
Description
17
CNTRL1
CNTRL1 and CNTRL0 select the receiver modes. CNTRL1 and CNTRL0 both high place the unit in the receive
mode. CNTRL1 and CNTRL0 both low place the unit in the power-down (sleep) mode. CNTRL1 is a
high-impedance input (CMOS compatible). An input voltage of 0 to 300 mV is interpreted as a logic low. An input
voltage of Vcc - 300 mV or greater is interpreted as a logic high. An input voltage greater than Vcc + 200 mV
should not be applied to this pin. A logic high requires a maximum source current of 40 μA. Sleep mode requires a
maximum sink current of 1 μA. This pin must be held at a logic level; it cannot be left unconnected.
18
CNTRL0
CNTRL0 is used with CNTRL1 to control the receiver modes. CNTRL0 is a high-impedance input (CMOS compat-
ible). An input voltage of 0 to 300 mV is interpreted as a logic low. An input voltage of Vcc - 300 mV or greater is
interpreted as a logic high. An input voltage greater than Vcc + 200 mV should not be applied to this pin. A logic
high requires a maximum source current of 40 μA. Sleep mode requires a maximum sink current of 1 μA. This pin
must be held at a logic level; it cannot be left unconnected.
19
GND3
GND3 is an IC ground pin. It should be connected to GND1 by a short, low inductance trace.
20
RFIO
RFIO is the receiver RF input pin. This pin is connected directly to the SAW filter transducer. Antennas presenting
an impedance in the range of 35 to 72 ohms resistive can be satisfactorily matched to this pin with a series match-
ing coil and a shunt matching/ESD protection coil. Other antenna impedances can be matched using two or three
components. For some impedances, two inductors and a capacitor will be required. A DC path from RFIO to
ground is required for ESD protection.
11
file: rx5003w.vp, 2003.07.20 rev
Note: Specifications subject to change without notice.
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