AD8343(2000) データシートの表示（PDF） - Analog Devices
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AD8343 Datasheet PDF : 27 Pages
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AD8343
PIN FUNCTION DESCRIPTIONS
TSSOP Name
2, 3
INPP/INPM
Function
Differential input pins. Need to be dc-
biased; typically ac-coupled.
Simplified Interface Schematic
VPOS
5VDC
OUTP OUTM
5VDC 5VDC
12, 13 OUTP/OUTM Open collector differential output pins.
Need to be ac-coupled and dc-biased.
1.2VDC
INPP
INPM
1.2VDC
VPOS
5VDC
LOIP
LOIM
9, 10
LOIP/LOIM
Differential local oscillator (LO) input pins.
Typically ac-coupled.
360mVDC
LOIP
LOIM
360mVDC
VPOS
5VDC
VBIAS
400⍀ 400⍀
6
PWDN
4
DCPL
Power-down interface. Connect pin to
ground for normal operating mode. Connect
pin to supply for power-down mode.
Bias rail decoupling capacitor connection
for LO Driver.
PWDN
VPOS
5VDC
25k⍀
BIAS
CELL
DCPL
VPOS
LOIP
LOIM
BIAS
CELL
360mVDC
360mVDC
2VDC
R1
10⍀
LO
BUFFER
TO
MIXER
CORE
5
VPOS
1, 7, 8, COMM
11, 14
Positive supply voltage (VS), 4.5 V to 5.5 V.
Ensure adequate supply bypassing for proper
device operation as shownin Figure 24.
Connect to low impedance circuit ground.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD8343 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
–4–
REV. 0
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