AFE031 datasheet(8/59 Pages) TI2

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AFE031

SBOS531E – AUGUST 2010 – REVISED JUNE 2019

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

8.3 Thermal Information

THERMAL METRIC(1)

AFE031

UNIT

RGZ (VQFN)

48 PINS

RθJA

Junction-to-ambient thermal resistance

27.8

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

12.1

°C/W

RθJB

Junction-to-board thermal resistance

7.5

°C/W

ψJT

Junction-to-top characterization parameter

0.4

°C/W

ψJB

Junction-to-board characterization parameter

7.4

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

1.7

°C/W

(1)

Total harmonic distortion measured at output of Tx_PGA configured in a gain of 1 V/V with an amplitude of 3 VPP, at a 1-MHz sample

rate.

8.4

Electrical Characteristics: Transmitter (Tx)

At TJ = 25°C, PA_VS = 16 V, VAVDD = VDVDD = 3.3 V, and 10 kΩ connected to PA_ISET (pin 46), unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Tx_DAC

Output range

GND + 0.1

AVDD – 0.1

Resolution

1,024 steps, 10-bit DAC

3.2

THD

Total harmonic distortion at

62.5 kHz(1)

Second harmonic distortion

–73

Third harmonic distortion

–56

Fourth harmonic distortion

–94

Data rate

1.5

MSPS

Tx_PGA

Input

Input voltage range

GND – 0.1

AVDD + 0.1

Input resistance

G = 1 V/V

kΩ

G = 0.707 V/V

kΩ

G = 0.5 V/V

kΩ

G = 0.25 V/V

kΩ

Frequency Response

Bandwidth

DAC mode enabled

G = 1 V/V

MHz

G = 0.707 V/V

MHz

G = 0.5 V/V

MHz

G = 0.25 V/V

MHz

Output

Voltage output swing from

AGND or AVDD

RLOAD = 10 kΩ, connected to AVDD/2

100

Maximum continuous current,

Sourcing

Sinking

Output resistance

f = 100 kHz

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