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參數(shù)資料
| 型號(hào)： | RF2423 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類(lèi)： | 無(wú)繩電話/電話 |
| 英文描述： | 100mW SPREAD-SPECTRUM TRANSMITTER IC |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO16 |
| 封裝： | SOP-16 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 67K |
| 代理商： | RF2423 |
5-38
RF2423
Rev A3 001218
5
M
U
NOT FOR NEWDESIGNS
Pin
11
Function
GND4
Description
Ground connection for the RF driver and output stage. Keep traces
physically short and connect immediately to ground plane for best per-
formance. Having a good ground connection on this pin is extremely
important due to the high RF levels in the circuits connected to this pin.
50
RF output. This pin is not internally DC blocked and an external
blocking capacitor of 22pF is needed.
Interface Schematic
12
RF OUT
13
GND3
Ground connection for the RF driver and output stage. Keep traces
physically short and connect immediately to ground plane for best per-
formance. Having a good ground connection on this pin is extremely
important due to the high RF levels in the circuits connected to this pin.
Power supply for the RF output stage. A 33pF external bypass capaci-
tor is required and an optional 0.1
μ
F will be required if no other low fre-
quency bypass capacitors are nearby. The trace length between the pin
and the bypass capacitors should be minimized. The ground side of the
bypass capacitors should connect immediately to ground plane.
Having good bypassing on this pin is especially important because of
the high levels of RF signal on the circuits connected to this pin.
Power supply for the RF driver stage. A 33pF external bypass capacitor
is required and an optional 0.1
μ
F will be required if no other low fre-
quency bypass capacitors are near by. The trace length between the
pin and the bypass capacitors should be minimized. The ground side of
the bypass capacitors should connect immediately to ground plane.
Having good bypassing on this pin is especially important because of
the high levels of RF signal on the circuits connected to this pin.
Standby mode control. When this pin is 0V all circuits are turned off,
and when this pin is VDD all circuits are operating. This is a high
impedance input, internally connected to the gate of a few transistors.
To minimize current consumption in power down mode, this pin should
be as close to 0 V as possible, or even a little negative. Turn-on voltage
of some parts of the circuit may be as low as 0.0 V. In order to maxi-
mize output power this pin should be as close to VDD as possible dur-
ing normal operation.
14
VDD3
15
VDD2
16
STANDBY
RF OUT
V
DD
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| RF2423-000 | 功能描述:可復(fù)位保險(xiǎn)絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類(lèi)型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
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| RF2424-000 | 功能描述:可復(fù)位保險(xiǎn)絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類(lèi)型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
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| RF-2424DH | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:ECONOLINE - DC/DC - CONVERTER |
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