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參數(shù)資料
| 型號(hào)： | RF105 |
| 英文描述： | 900 MHz Digital Spread Spectrum Transceiver |
| 中文描述： | 900兆赫數(shù)字?jǐn)U頻收發(fā)器 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大小： | 119K |
| 代理商： | RF105 |
900 MHz Digital Spread Spectrum Transceiver
RF105
W117, Rev. B
September 28, 1999
Conexant
3
Conexant Proprietary Information
Recommendations on Layout and Implementation_____
A typical applications schematic is shown in Figure 4. All
Vcc pins should be decoupled as close to the supply pin as
possible, preferably right at the input pins.
All ground pins should have minimum trace inductance to
ground. If a ground plane cannot be provided right at the
pins, the vias to the ground plane should be placed as
close to the pins as possible. There should be one via for
each ground pin. If the ground plane is at the bottom layer,
it is recommended to have two vias in parallel for each
ground pin.
VCC1 (pin 6), VCC2 (pin 26), and VCC3 (pin 31) should be
connected to the common Vcc supply through individual
decoupling networks.
ESD Sensitivity _________________________________
The RF105 is a static-sensitive electronic device. Do not
operate or store near strong electrostatic fields. Take
proper Electrostatic Discharge (ESD) precautions.
CLK
FREF
DATA
33pF
0.01μF
1000pF
TXDATA
Shaping Filter
LNAIN
3.3pF
*
33pF
*
1000pF
TXD
LNAATTN
10nH
*
1000pF
VCC
VCC
0.047μF
33pF
RXQ
RXI
VCC
33pF
0.047μF
402
GC
Rgmc
Rmod
2200pF
50
SYNTHEN
STROBE
33pF
0.047μF
VCC
0.015μF
820pF
3920
820pF
RXEN
RFOUT
TXEN
PS1
PS2
Cservo
0.082μF
Voltage
Regulator
(optional)
33pF
0.056μF
0.056μF
*
Matching network values are layout-dependent.
1.2k
875
Cservo
0.082μF
+
+
RF105
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
1
1
1
1
1
1
1
2
2
2
2
2
4
4
4
4
4
4
4
3
4
3
3
51k
10
3920
4
Figure 4. Typical Applications Diagram – RF105
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