ADRF6518ACPZ-R7 datasheet(3/39 Pages) AD

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Data Sheet

ADRF6518

Rev. A | Page 3 of 39

SPECIFICATIONS

VPS, VPI, VPSD = 3.3 V, TA = 25°C, ZLOAD = 400 Ω, power mode bit (B9) = 0 (low power mode), digital gain code bits (B8 to B2) = 0000001, and

dc offset disable bit (B1) = 0 (enabled), unless otherwise noted.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

FREQUENCY RESPONSE, FILTER BYPASS MODE

±1 dB Gain Flatness Bandwidth

300

MHz

−3 dB Small Signal Bandwidth

VGA2 and VGA3 21 dB digital gain setting

650

MHz

VGA2 and VGA3 12 dB digital gain setting

1100

MHz

FREQUENCY RESPONSE

Low-Pass Corner Frequency, fC

Six-pole Butterworth filter, 0.5 dB bandwidth

MHz

Step Size

MHz

Corner Frequency Absolute Accuracy

Over operating temperature range

±8

% fC

Corner Frequency Matching

Channel A and Channel B at same gain and

bandwidth settings

±0.5

% fC

Pass-Band Ripple

0.5

dB p-p

Gain Matching

Channel A and Channel B at same gain and

bandwidth settings

±0.1

Group Delay Variation

From midband to peak

Corner Frequency = 1 MHz

135

Corner Frequency = 30 MHz

Group Delay Matching

Channel A and Channel B at same gain

Corner Frequency = 1 MHz

Corner Frequency = 30 MHz

0.2

Stop-Band Rejection

Relative to Pass Band

2 × fC

5 × fC

INPUT STAGE

INP1, INM1, INP2, INM2, VICM/AC

Maximum Input Swing

At minimum gain, VGN1 = 0 V

5.0

V p-p

Differential Input Impedance

400

Input Common-Mode Range, DC-Coupled

Mode

1.5 V p-p input voltage, HD3 > 65 dBc (VPI = 3.3 V),

VICM/AC floating or logic high

1.35

1.95

1.5 V p-p input voltage, HD3 > 65 dBc (VPI = 5.0 V),

VICM/AC floating or logic high

1.35

3.1

Input Common-Mode, AC-Coupled Mode

VPI = 3.3 V to 5.0 V, VICM/AC = 0 V

VPS/2

VICM/AC Input Impedance

7.75

kΩ

PEAK DETECTOR

VPK, RAVG, SDO/RST

Output Scaling

Relative to differential peak voltage at filter

input

V/V peak

Reset Threshold

Logic high duration > 25 ns

>2.0

GAIN CONTROL

VGN1, VGN2, VGN3

Gain Range

Maximum digital gains

−6

+66

Minimum digital gains

−36

+36

Voltage Attenuation Range

Each attenuator; VGAIN from 0 V to 1 V

−24

Gain Slope

mV/dB

Gain Error

VGAIN from 300 mV to 800 mV

0.2

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