欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: MAX2365ETM+T
廠商: Maxim Integrated
文件頁數: 23/29頁
文件大小: 460K
描述: IC TRANSMITTER QUAD 48TQFN-EP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
頻率: 900MHz
應用: 無線 LAN
功率 - 輸出: 9dBm
電流 - 傳輸: 90mA
數據接口: PCB,表面貼裝
天線連接器: PCB,表面貼裝
電源電壓: 2.7V ~ 3.3V
工作溫度: -40°C ~ 85°C
封裝/外殼: 48-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
Complete Dual-Band
Quadrature Transmitters
______________________________________________________________________________________   23
High-frequency bypass capacitors are required close
to the pins with a dedicated via to ground. The 48-pin
QFN-EP package provides minimal inductance ground
by using an exposed paddle under the part. Provide at
least five low-inductance vias under the paddle to
ground, to minimize ground inductance. Use a solid
ground plane wherever possible. Any cutout in the
ground plane may act as slot radiator and reduce its
shield effectiveness.
Keep the RF LO traces as short as possible to reduce
LO radiation and susceptibility to interference.
IF Tank Design
The low-band tank (TANKL+, TANKL-) and high-band
tank (TANKH+, TANKH-) are fully differential. The exter-
nal tank components are shown in Figure 6. The fre-
quency of oscillation is determined by the following
equation:
C
INT
= Internal capacitance of TANK port
C
D
= Capacitance of varactor
C
VAR
= Equivalent variable tuning capacitance
C
PAR
= Parasitic capacitance due to PC board pads
and traces
C
CENT
= External capacitor for centering oscillation fre-
quency
C
C
= External coupling capacitor to the varactor
Table 10 shows possible component values for various
oscillation frequencies.
Internal to the IC, the charge pump will have a leakage
of less than 10nA. This is equivalent to a 300M& shunt
resistor. The charge-pump output must see an
extremely high DC resistance of greater than 300M&.
This minimizes charge-pump spurs at the comparison
frequency. Make sure there is no solder flux under the
varactor or loop filter.
Layout Issues
The MAX2361/MAX2363/MAX2365 EV kit can be used
as a starting point for layout. For best performance,
take into consideration power-supply issues as well as
the RF, LO, and IF layout.
Power-Supply Layout
To minimize coupling between different sections of the
IC, the ideal power-supply layout is a star configuration,
which has a large decoupling capacitor at a central
V
CC
node. The V
CC
traces branch out from this node,
each going to a separate V
CC
node in the MAX2361/
MAX2363/MAX2365 circuit. At the end of each trace is
a bypass capacitor with impedance to ground less than
1& at the frequency of interest. This arrangement pro-
2    (C
C
C
C    ) L
C
 
C
C
2  C   + C
OSC
INT
CENT
VAR
PAR
VAR
D
C
 
D
    
 
   
   
   
 
   
   
 
=
+
+
+
=
?/DIV>
1
?/DIV>
t
CS
t
CH
t
CWL
t
CWH
DI
CLK
CS
t
ES
B19 (MSB)
B18
B0
A3
A1
A0 (LSB)
t
CS
 > 50ns
t
CH
 > 10ns
t
CWH
 > 50ns
t
ES
 > 50ns
t
CWL
> 50ns
t
EW
> 50ns
t
EW
Figure 5. 3-Wire Interface Diagram
L
C
D
C
CENT
C
PAR
C
C
C
C
C
D
MAX2361
MAX2363
MAX2365
C
INT
-R
n
Figure 6. Tank Port Oscillator
相關PDF資料
PDF描述
MAX2369EGM+TD IC TRANSMITTER QUAD 48QFN-EP
MAX2850ITK+ TRANSMITTER MIMO 5GHZ 4CH 68TQFN
MAX7057ASE+T IC TRANSMITTER ASK/FSK 16-SOIC
MBA-2060 ANTENNA METROLOGY BICONICAL
MC33493ADTBER2 IC RF TRANSMITTER UHF 14-TSSOP
相關代理商/技術參數
參數描述
MAX2366EGM 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX2366EGM-D 功能描述:射頻發射器 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
MAX2366EGM-TD 功能描述:射頻發射器 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
MAX2366EVKIT 功能描述:射頻開發工具 RoHS:否 制造商:Taiyo Yuden 產品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V
MAX2367EGM 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
主站蜘蛛池模板: 台前县| 伊通| 正宁县| 安龙县| 罗平县| 台东市| 稷山县| 通州区| 肥乡县| 汉阴县| 潜江市| 武隆县| 邹城市| 确山县| 兴化市| 辛集市| 双流县| 鄂温| 吉林省| 永善县| 南京市| 砚山县| 兰州市| 邢台县| 同江市| 田阳县| 天峻县| 滨海县| 忻城县| 兴业县| 格尔木市| 鄂托克旗| 广宗县| 镇原县| 延川县| 西昌市| 攀枝花市| 霞浦县| 和龙市| 古交市| 怀安县|