參數(shù)資料
型號(hào): PPXY8300A6T1
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: Pressure Sensor
英文描述: DIFFERENTIAL, PEIZORESISTIVE PRESSURE SENSOR, RECTANGULAR, SURFACE MOUNT
封裝: SOIC-20
文件頁數(shù): 141/162頁
文件大?。?/td> 4316K
代理商: PPXY8300A6T1
MPXY8300 Series
Sensors
8
Freescale Semiconductor
Figure 2-5 Recommended Power Supply Connections
2.3.2
AVDD and AVSS Pins
The analog circuits operate from a single power supply connected to the device through the AVDD and AVSS pins. AVDD is the
positive supply and AVSS is the ground. The conductors to the power supply should be connected to the AVDD and AVSS pins
and locally decoupled as shown in Figure 2-5.
Care should be taken to reduce measurement signal noise by separating the VDD, VSS, AVDD, AVSS and RVSS pins using a “star”
connection such that each metal trace does not share any load currents with other external devices as shown in Figure 2-5.
2.3.3
VCAP Pin
An external load capacitor is connected the VCAP pin when using the internal charge pump to generate a voltage higher than VDD
for the RFX device. If the charge pump is not used this pin should be left unconnected.
2.3.4
VRF Pin
The VRF pin provides the power output voltage for RFX and should be connected to the RF pin through an inductor.
2.3.5
RVSS Pin
Power in the RF output amplifier is returned to the supply through the RVSS pin. This conductor should be connected to the power
supply as shown in Figure 2-5 using a “star” connection such that each metal trace does not share any load currents with other
supply pins.
2.3.6
RF Pin
The RF pin is the RF energy data supplied by the device to an external antenna.
2.3.7
XO, XI Pins
The XO and XI pins are for an external crystal to be used by the internal PLL for creating the carrier frequencies and data rates
for the RF pin.
0.1 F
MPXY8300
VDD
VSS
to other
Battery
IDD
ILOAD
Bypass capacitors
closely coupled to
the package pins
MPXY8300 and Other Load Currents
star connected to battery terminals
loads
0.1 F
AVDD
AVSS
RVSS
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