AD8346 datasheet(14/20 Pages) AD

14 / 20 page

AD8346

Rev. A | Page 14 of 20

EVALUATION BOARD

The schematic of the AD8346 evaluation board is shown in

Figure 30. This is a 4-layer FR4 board; the two center layers are

used as ground planes and the top and bottom layers are used

for signal and power. Figure 31 shows the layout and Figure 32

shows the silkscreen. The evaluation board circuit closely

follows the basic connections circuit shown in Figure 27.

Slide SW1 to the A position to connect the ENBL pin to +VS

via the 10 kΩ pull-up resistor REP. Slide SW1 to the B position

to disable the device by grounding the ENOP pin through the

49.9 Ω pull-down resistor REG. The device may be enabled via

an external voltage applied to the SMA connector ENOP or TP2.

All connectors are of the SMA type. The I and Q inputs are

provided with pads for implementing a simple RC filter

network. The local oscillator input is driven through a balun

(M/A-COM Part Number ETC1-1-13).

100pF

0.01

μF

CLOP

100pF

CLON

100pF

RLOP

OPEN

RLON

OPEN

RLOS

OPEN

IBBP

IBBN

COM1

LOIN

LOIP

VPS1

ENBL

QBBP

QBBN

COM4

VPS2

VOUT

COM3

COM2

TP2

ENOP

CVO

100pF

VOUT

+VS

AD8346

RQP

CQP

OPEN

RQN

CIP

OPEN

RIP

RIN

CIN

OPEN

0.01

μF

100pF

ETC1-1-13

RIS

OPEN

RQS

OPEN

CQN

OPEN

REG

49.9k

REP

10k

SW1

Figure 30. Evaluation Board Schematic

AD8346 Datasheet(PDF) 14 Page - Analog Devices

AD8346 Datasheet(HTML) 14 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL