ADRF6821 datasheet(5/61 Pages) AD

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Data Sheet

ADRF6821

Rev. A | Page 5 of 61

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE AT fLO = 2800 MHz

High-side LO, fIF = 100 MHz, fRF = 2700 MHz

Power Gain

Gain Flatness

Over any 75 MHz bandwidth

0.08

Over any 280 MHz bandwidth

0.25

OP1dB

Over all DSA settings, VCM = 1.6 V

dBm

OIP3

Over all DSA settings, POUT = −10 dBm/tone, fIF =1 MHz to

75 MHz separation

dBm

Over all DSA settings, POUT = −10 dBm/tone, fIF = 175 MHz to

200 MHz separation

dBm

OIP2

Over all DSA settings, POUT = −10 dBm/tone, fIF = 1 MHz to

75 MHz separation

dBm

HD2

POUT = −7 dBm CW signal

−80

dBc

HD3

POUT = −7 dBm CW signal

−82

dBc

Noise Figure

DSB

Image Rejection

−32

LO to IF Leakage

See Figure 26

−54

dBm

LO to RF Leakage

See Figure 27

−59

dBm

RF to IF Leakage

See Figure 25

−61

dBc

Isolation

Channel to channel

−46

dBc

DSA AND RF INPUT SWITCH SPECIFICATIONS

All supply pins = 3.3 V, TA = 25°C, internal LO, minimum attenuation setting (DSA setting of 0 dB), MIXER_GAIN_PEAK = 0, VCM = 1.6 V,

25 Ω matching resistors on I/Q differential outputs, unless otherwise noted. All losses from input and output traces and baluns are

de-embedded from results.

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DIGITAL STEP ATTENUATOR

Attenuation Range

Step Size

Step Error

±(0.3 + attenuation × 5%)

Settling Time

Between any two different attenuation settings

100

DSA Phase Shift

Between any two different attenuation settings

Degrees

RF INPUT SWITCH

Switch Settling Time

50% control signal to 99% or1% RF signal final value

µs

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