- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369900 > MC33493 (Motorola, Inc.) PLL tuned UHF Transmitter for Data Transfer Applications PDF資料下載
參數(shù)資料
| 型號(hào)： | MC33493 |
| 廠商： | Motorola, Inc. |
| 英文描述： | PLL tuned UHF Transmitter for Data Transfer Applications |
| 中文描述： | 鎖相環(huán)調(diào)諧數(shù)據(jù)傳輸應(yīng)用超高頻發(fā)射器 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 595K |
| 代理商： | MC33493 |
COMPLETE APPLICATION SCHEMATIC AND PCB FOR FSK MODULATION
MOTOROLA
MC33493 Technical Data
15
on following tables 3 and 4.
Table 3: External components description for OOK
Function
Note 3: C6 value equals recommended crystal load capacitance reduced by the PCB stray capacitances.
Examples of crystal reference are given below (see characteristics on table 4) for different application bands:
- at 315MHz band (f
reference
= 9.84375MHz, -40°C < T
A
<
85°C): NDK LN-G102-950,
- at 434/868MHz bands (f
reference
= 13.56MHz, -40°C < T
A
< 125°C):
NDK NX8045GB/CSJ S1-40125-8050-12 and NDK NX1255GA.
Table 4: Typical crystal characteristics (SMD package)
NDK NX8045GB/CSJ
S1-40125-8050-12
(for 434MHz & 868MHz)
Load capacitance
12
Motional capacitance
3.33
Static capacitance
1.05
Loss resistance
28
Figure 13 shows a two buttons keyfob board. Size is 30 x 45 millimeters.
Figure 13: Two buttons keyfob board layout
COMPLETE APPLICATION SCHEMATIC AND PCB FOR FSK MODULATION
Figure 14 gives a complete application schematic using a Motorola MC68HC908RK2 microcontroller. FSK
modulation is selected, f
carrier
= 433.92MHz. C
1
capacitor can be removed if switch debounce is done by
software.
Component
Value
Unit
MHz
MHz
MHz
Y1
Crystal,
see table 4
315MHz band: 9.84
434MHz band: 13.56
868MHz band: 13.56
R2
RF output level setting
resistor (R
ext
)
Crystal load capacitor
Power supply decoupling
capacitors
12
k
C6
C7
C8
8.2, see note 3
22
100
pF
nF
pF
Parameter
NDK LN-G102-950
(for 315MHz)
NDK NX1255GA
(for 434MHz & 868MHz)
Unit
12
4.4
1.5
18.5
12
10.5
2.46
10
pF
fF
pF
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC33493DTB | PLL tuned UHF Transmitter for Data Transfer Applications |
| MC3359 | Single Output LDO, 400mA, Fixed(3.3V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85 |
| MC3359DW | Single Output LDO, 400mA, Fixed(5.0V), Low Noise, Fast Transient Response 8-MSOP -40 to 85 |
| MC3359P | Single Output LDO, 400mA, Fixed(5.0V), Low Noise, Fast Transient Response 8-MSOP -40 to 85 |
| MC3362 | Single Output LDO, 400mA, Fixed(2.5V), Low Noise, Fast Transient Response 8-MSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33493ADTBE | 功能描述:射頻發(fā)射器 UHF TRANSMITTER RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493ADTBER2 | 功能描述:射頻發(fā)射器 UHF TRANSMITTER RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTB | 功能描述:射頻發(fā)射器 315 434 868 MHz RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTBE | 功能描述:射頻發(fā)射器 PLL TUNED UHF TRANSMITTE RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTBER2 | 功能描述:射頻發(fā)射器 PLL TUNED UHF TRANSMITTE RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。