AD8348-EVAL datasheet(4/13 Pages) AD

Part #	AD8348-EVAL

Description	50-1000 MHz Quadrature Demodulator

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Manufacturer	AD [Analog Devices]

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PRELIMINARY TECHNICAL DATA

Rev. PrF 2/11/03

- 4 -

Parameter

Condition

Min

Typ

Max

Units

IF FRONT-END WITHOUT VGA from MXIP,MXIN to IMXO/QMXO

ENVG=0V

Zin

Measured differentially across MXIP/ MXIN

150

Ω||0.5pF 200Ω || 0.5pF 240Ω||0.5pF Ω||Pf

Conversion Gain

12

dB

Conversion Gain 3 dB Bandwidth

TBD

MHz

IF Gain Flatness

FIF=50MHz-1GHz

TBD

dB p-p

2nd Order Input Intercept(IIP2)

IF1=455MHz, IF2=456MHz

-32 dBm each tone from 200 Ω source

TBD

dBm

3rd Order Input Intercept(IIP3)

IF1=455MHz, IF2=456MHz

-32 dBm each tone from 200 Ω source

TBD

dBm

1dB Input compression point

VGIN=0.2V (max gain)

-23

dBm

Noise Figure

VGIN=0.2V (max gain) From 200 Ω source

Double sideband measurement

TBD

dB

Input LO Leakage

Measured at MXIP/MXIN

-120

dBm

Output LO Leakage

Measured at IMXO/QMXO

10

mVp-p

Demodulation Bandwidth

Full-power bandwidth (IIP3 drops 3dB)

TBD

MHz

Small-signal 3dB bandwidth, 10pF load

60

MHz

Quadrature Phase Error

LO=1GHz

(LOIP/LOIN 2GHz, single- ended input)

0.6

deg RMS

I/Q Amplitude Imbalance

0.3

dB

Capacitive load

shunt from IMXO,QMXO to VCMO

0

10

pF

Resistive load

shunt from IMXO,QMXO to VCMO

200

Ω

Peak output current

2.5

mA

BASEBAND AMPLIFIER

from IAIN to IOPP/IOPN &

QAIN to QOPP/QOPN

Gain

20

dB

Output Swing

differential

2

Vpp diff

Input referred Noise Voltage

8

nV/rtHz

Bandwidth

10pF differential load

60

MHz

Output DC differential offset

Corrected using 500pF capacitor on

IOFS,QOFS

+/-30

mV

Output Common-mode offset

+/-15

mV

Group Delay Flatness

0.1-30MHz

0.3

ns pp

3rd Order Intermod. Distortion

Fin1=5MHz Fin2=6MHz

Vin1=Vin2=50mVp-p

-71

dBc

Capacitive load drive capability

Differential across IOPP/IOPN,

QOPP/QOPN

10

pF

Resistive load

Differential across IOPP/IOPN,

QOPP/QOPN

2k

ohm

Peak output current

1

mA

Specifications subject to change without notice.

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