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參數(shù)資料
| 型號： | RF2425 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | 4-PORT TRANSFER SWITCH |
| 中文描述： | 0 MHz - 2000 MHz RF/MICROWAVE TRANSFER SWITCH, 1 dB INSERTION LOSS |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 57K |
| 代理商： | RF2425 |
9-21
RF2425
Rev A1 010228
9
A
S
Evaluation Board S chematic
(Download Bill of Materials from www.rfmd.com.)
Pin
1
Function
IN1
Description
Input pin for Channel 1. Channel 1 is chosen with a logic level “Low” on
pin 6, CTRL. The input VSWR is 1:1 when this channel is active and
highly capacitive (open circuit) when this channel is inactive. Since
both channels of the switch are bidirectional, this pin may be used as
an output with OUT1 as its input depending on layout preference.
Ground connection. Keep traces physically short and connect immedi-
ately to the ground plane for best performance.
Power supply. An external RF bypass capacitor is recommended.
Interface Schematic
2
GND
3
4
VDD
OUT2
Output pin for Channel 2. This pin may be used as the channel 2 input
instead; see pin 5 description.
Input pin for Channel 2. Channel 2 is chosen with a logic level “High”
on pin 6, CTRL. The input VSWR is 1:1 when this channel is active
and highly capacitive (open circuit) when this channel is inactive. Since
both channels of the switch are bidirectional, this pin may be used as
an output with OUT2 as its input depending on layout preference.
Control pin. This pin chooses which channel is active. A “Low” level
chooses Channel 1; a “High” level chooses Channel 2. CMOS logic
may be used to drive the control input.
Same as pin 2.
5
IN2
6
CTRL
7
8
GND
OUT1
Output pin for Channel 1. This pin may be used as the channel 1 input
instead; see pin 1 description.
1
2
3
4
8
7
6
5
C1
15 pF
C4
15 pF
C3
15 pF
C2
15 pF
50
μ
strip
50
μ
strip
50
μ
strip
50
μ
strip
IN1
J1
OUT2
J2
VDD
C6
15 pF
C5
1
μ
F
CTRL
OUT1
J4
IN2
J3
2425400-
P1-1
P1-3
P1
VDD
GND
1
2
3
CTRL
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| RF2425-000 | 功能描述:可復(fù)位保險絲 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-243.3DH | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:ECONOLINE - DC/DC - CONVERTER |
| RF-243.3S | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:ECONOLINE - DC/DC - CONVERTER |
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