ATR7032 datasheet(6/15 Pages) ATMEL | High Gain Power Amplifier for 802.11bg WLAN Systems

6 page

4846B–WLAN–04/05

ATR7032 [Preliminary]

10. Application Circuit

Figure 10-1. Application Board Schematic

Power Detector

Test Conditions measured on Atmel’s evaluation board (unless otherwise stated): V

CC = 3.3V, Frequency = 2.45 GHz, Tamb = 25°C

No.

Parameters

Test Conditions

Symbol

Min.

Typ.

Max.

Unit

Type*

5.0

Detector voltage

range

POUT = 5 to 25 dBm

VDET

5.1

Settling time

POUT = 5 to 25 dBm

tSET

0.5

µs

5.2

Detector accuracy

POUT = 5 to 25 dBm

CC = 2.7 to 3.6V

amb = –40 to +85°C

∆P

OUT

±0.7

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

C10(1)

VCTRL

C9(1)

V_PA3

VDET

PA_Out

V_PA1

RF_IN

VCC

GND_RF

ATR7032

Interstage

Matching

Ω Input

Match

Voltage

Detector

Standby/

Bias

Circuitry

Interstage

Matching

Paddle

GND_RF

V_PA2

R1(1)

C12(1)

C11(1)

C19

C18(1)

C17(1)

C16(1)

T1, T2: Microstrip Line

Microstrip Line

Length/mm

Width/mm

4.3

0.64

5.6

0.64

Metal layer distance to ground:

360 µm

CU metal layer thickness:

35 µm

r of dielectric material (FR4):

4.5

(1) Components can be omitted depending on application

IC: internally connected; pin must not be connected to any

other pin or supply chain

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