AFE7906 datasheet(11/78 Pages) TI

11 / 78 page

6.5 RF ADC Electrical Characteristics (continued)

Typical values at TA = +25°C, full temperature range is TA,MIN = -40°C to TJ,MAX = +110°C; RX Output Rate = 491.52MSPS

below 6GHz input frequency and 1500MSPS above 6GHz input frequency, fADC = 2949.12MSPS; PLL clock mode with fREF

= 491.52MHz below 6GHz input frequency and External clock mode with fCLK = 2949.12MHz above 6GHz input frequency;

nominal power supplies; DSA Setting =3dB; SerDes rate =24.33Gbps; unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

HD3

3rd Harmonic Distortion

AIN = -13 dBFS

fIN = 5 MHz, fADC = 1500MSPS, fNCO

= 17MHz, Decimate by 48

-103

dBFS

fIN = 30 MHz, fADC = 1500MSPS,

Bypass Mode (TI only test mode)

-84

fIN = 381 MHz, fADC = 3000MSPS,

Bypass Mode (TI only test mode)

-91

fIN = 830 MHz

-95

fIN = 1760 MHz

-95

fIN = 2610 MHz

-98

fIN = 3610 MHz

-97

fIN = 4910 MHz

-94

fIN = 8150 MHz

-100

fIN = 9610 MHz

-102

HDn, n>3

SFDR excl. HD2 and HD3

AIN = -13 dBFS

fIN = 5 MHz, fADC = 1500MSPS, fNCO

= 17MHz, Decimate by 48

-104

dBFS

fIN = 30 MHz, fADC = 1500MSPS, fNCO

= 30MHz, Decimate by 24

-105

fIN = 410 MHz, fADC =

3000MSPS, fNCO = 400MHz,

Decimate by 24

-95

fIN = 830 MHz

-89

fIN = 1760 MHz

-89

fIN = 2610 MHz

-95

fIN = 3610 MHz

-90

fIN = 4910 MHz

-90

fIN = 8150 MHz

-83

fIN = 9610 MHz

-80

RX-RX/FB

Isolation

Near Channel:

1RXIN to 2RXIN

3RXIN to 4RXIN

1FBIN to 1RXIN

2FBIN to 3RXIN

fIN = 5 MHz, fADC = 1500MSPS, fNCO

= 17MHz, Decimate by 48

-98

fIN = 30 MHz, fADC = 1500MSPS, fNCO

= 30MHz, Decimate by 24

-98

fIN = 400 MHz

-88

fIN = 830 MHz

-77

fIN = 1760 MHz

-71

fIN = 2610 MHz

-74

fIN = 3610 MHz

-77

fIN = 4910 MHz

-65

fIN = 8150 MHz

-68

fIN = 9610 MHz

-68

(1)

The input fullscale at minimum attenuation can be reduce by adding a digital gain range to the DSA, extending the useful range of the

DSA. The noise figure remains constant over the digital gain range.

(2)

After HD2 trim on specific printed circuit board.

(3)

From DSA = 3dB down to 0dB, NSD increases 1dB per DSA dB

(4)

NF increase 1dB per DSA 1dB above DSA = 3dB

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AFE7906

SBASAF7B – JANUARY 2022 – REVISED JULY 2022

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