RF2483 查看數據表（PDF） - RF Micro Devices

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RF2483

LOW NOISE DUAL-BAND QUADRATURE MODULATOR WITH AGC

RF Micro Devices 

RF2483

Pin

19

20

Die

Flag

Function

RF OUT HB

GND3

GND4

Description

Interface Schematic

RF high band output. Open collector output.

The output should be biased at VCC through an inductor that can be used

to form part of an output matching circuit.

In our proposed applications circuit some power is dissipated in R4 (180)

which appears as a de-Qing resistor in parallel with the output inductor L3.

If R4 is eliminated and the RFOUT HB pin is re-matched to 50 it is possi-

ble to get approximately 3dB extra power out of the device in high band

mode.

Ground for RF output sections.

Ground for modulator, variable gain amplifier and substrate.

Package Drawing

-A-

4.00 SQ.

0.10 C A

2 PLCS

2.00 TYP

0.10 C B

2 PLCS

0.90

0.85

0.05

0.00

0.05 C

0.70

0.65

0.10 C B

2 PLCS

0.10 C A

2 PLCS

3.75 SQ.

-B-

1.87 TYP

Dimensions in mm.

NOTES:

1. Shaded lead is Pin 1.

2 Dimension applies to plated terminal:

to be measured between 0.20 mm and 0.25 mm

from terminal end.

0.60

0.24

TYP

0.75

0.50

TYP

12°

MAX

SEATING

PLANE

-C-

0.10 M C A B

0.30

0.18

2

PIN 1

ID

0.20 R

2.25

1.95

SQ.

0.50

12 of 34

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

DS110505

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