MICRF008BM Просмотр технического описания (PDF) - Micrel

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MICRF008BM

QwikRadio™ Sweep-Mode Receiver

Micrel 

MICRF008

Test Circuit

ANT1

J2

Z = ±jX

Z1 Z2

Z3 Z4 Z5

+5V

R1

C4 C5

U1

JP1

1

MICRF008BM

SEL0 REFOSC 8

2 ANT

CAGC 7

3 VDD

VSS 6

4 CTH

DO 5

R2

J1

+5V

1 REFOSC

C2 C1

DO

C6

Y1

C3

Micrel

Test Circuit and Application Information

The test circuit is based on the EVAL8 PCB

Design. Gerbers, the bill of material and complete

schematic are available at Micrel website

(http://www.micrel.com/product-info/qwikradio.shtml). EVAL8

provides the means for a complete evaluation of the

MICRF008BM. It is not intended as a final receiver design.

For final receiver applications, look for the RX8-x series of

reference designs. The board is a FR4 material, 0.062 inch

thick, in two layers. It is strongly recommended that all RF

designs are made in a minimum two-layer board, one side

being as solid ground as possible. Blank EVAL8 boards are

available for selected customers. To obtain a blank board

contact your local Micrel representative/distributor. Four draw-

ings are shown below, the top layer, bottom layer, the top

silkscreen layer, and the bottom silkscreen layer. The size of

the board is 0.910 x 0.760 inches. It provides the means to

test the part thoroughly.

Figure 7a. Top Layer

Figure 7b. Bottom Layer

Figure 7c. Top Silkscreen Layer

MICRF008

Figure 7d. Bottom Silkscreen Layer

8

July 2003

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