REV. 0

AD8343

–4–

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

PIN FUNCTION DESCRIPTIONS

TSSOP

Name

Function

Simplified Interface Schematic

2, 3

INPP/INPM

Differential input pins. Need to be dc-

biased; typically ac-coupled.

12, 13

OUTP/OUTM

Open collector differential output pins.

Need to be ac-coupled and dc-biased.

9, 10

LOIP/LOIM

Differential local oscillator (LO) input pins.

Typically ac-coupled.

6

PWDN

Power-down interface. Connect pin to

ground for normal operating mode. Connect

pin to supply for power-down mode.

4

DCPL

Bias rail decoupling capacitor connection

for LO Driver.

5

VPOS

Ensure adequate supply bypassing for proper

device operation as shownin Figure 24.

1, 7, 8,

COMM

Connect to low impedance circuit ground.

11, 14

VPOS

LOIP

LOIM

OUTP

OUTM

INPP

INPM

VPOS

VPOS

LOIP

LOIM

400

VBIAS

400

VPOS

PWDN

25k

BIAS

CELL

TO

MIXER

CORE

R1

10

DCPL

VPOS

LOIP

LOIM

BIAS

CELL

LO

BUFFER