MICRF009 Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

MICRF009

QwikRadio® Low-Power UHF Receiver

Micrel 

Micrel

MICRF009

Application Example

315MHz Receiver/Decoder Application

Figure 8 illustrates a typical application for the MICRF009

UHF Receiver IC. This receiver operates continuously (not

duty cycled) in sweep mode, and features 6-bit address

decoding and two output code bits.

Operation in this example is at 315MHz, and may be

customized by selection of the appropriate frequency

reference (Y1), and adjustment of the antenna length. The

value of C4 would also change if the optional input filter is

used. Changes from the 1kbps data rate may require a

change in the value of R1. A bill of materials accompanies

the schematic.

Figure 8. 315Mhz, 1.2kbps On-Off Keyed Receiver with Decoder

Sweep Mode

Bill of Materials

Item

C1, C5

C2

C3

C4

Part Number

Manufacturer

Vishay(1)

Vishay(1)

Vishay(1)

Vishay(1)

Y1

See Crystal App. Note

D1

SSF-LX100LID

Lumex(2)

L1

0603CS-47NX_BC

Coil Craft(5)

R1

R2

U1

MICRF009

U2

HT-12D

Vishay(1)

Micrel(3)

Holtek(4)

Notes:

1.

2.

3.

4.

5.

Vishay tel: 203-268-6261

Lumex tel: 800-278-5666

Micrel Semiconductor tel: 408-944-0800

Holtek tel: 408-894-9046

Coil Craft tel: 847-639-2361

Description

Qty

4.7µF ceramic or tantalum capacitor

2

0.1µF ceramic or tantalum capacitor

1

2.2µF ceramic or tantalum capacitor

1

8.2pF COG ceramic capacitor

1

9.81 ceramic resonator

1

Red LED

1

47nH Inductor

1

68k, 1/4W, 5%

1

1k, 1/4W, 5%

1

UHF receiver

1

Logic decoder

1

January 18, 2005

13

M9999-011805

(408) 955-1690

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