RF Monolithics, Inc.

Phone: (972) 233-2903

Fax: (972) 387-8148

E-mail: info@rfm.com

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RFM Europe

Phone: 44 1963 251383

Fax: 44 1963 251510

http://www.rfm.com

©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.

TR3003-070105

Electrical Characteristics (typical values given for 3.0 Vdc power supply, 25 °C)

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Transmitter Performance

Peak RF Output Power, 250 µA TXMOD Current

3

1.5

dBm

Peak Current, 250 µA TXMOD Current

3

9.5

mA

2nd - 4th Harmonic Outputs

3

-50

dBm

5th - 10th Harmonic Outputs

3

-55

dBm

Non-harmonic Spurious Outputs

3

-50

dBm

OOK Turn On/Turn Off Times

4

12/6

µs

ASK Output Rise/Fall Times

4

1.1/1.1

µs

Sleep Mode Current

0.7

µA

Power Supply Voltage Range

2.2

3.7

Vdc

Power Supply Voltage Ripple

10

Ambient Operating Temperature

-40

85

°C

Notes:

OOK/ASK receiver sensitivity, the “100% AM” test method and the “Pulse” test method. Sensitivity data is given for both test methods. See Ap-

pendix 3.8 in the ASH Transceiver Designer’s Guide for the details of each test method, and for sensitivity curves for a 2.2 to 3.7 V supply voltage

range at five operating temperatures. The application/test circuit and component values are shown on the next page and in the Designer’s Guide.

2. At low data rates it is possible to adjust the ASH pulse generator to trade-off some receiver sensitivity for lower operating current. Sensitivity

3. Data is given with the ASH radio matched to a 50 ohm load. Matching component values are given on the next page.

4. See Table 1 on Page 8 for additional information on ASH radio event timing.

Dimension

mm

Inches

Min

Nom

Max

Min

Nom

Max

A

10.795

10.922

11.049

.425

.430

.435

B

9.525

9.652

9.779

.375

.380

.385

C

1.778

1.905

2.032

.070

.075

.080

D

3.048

3.175

3.302

.120

.125

.130

E

0.381

0.508

0.635

.015

.020

.025

F

0.889

1.016

1.143

.035

.040

.045

G

3.175

3.302

3.429

.125

.130

.135

H

1.778

1.905

2.032

.070

.075

0.80

3

4

5

6

7

9

11

12

13

14

15

16

17

19

ASH Transceiver Pin Out

RFIO

8

2

10

20

1

18

LPFADJ

RREF

THLD2

AGCCAP

PKDET

BBOUT

CMPIN

RXDATA

TXMOD

THLD1

PRATE

PWIDTH

GND1

VCC1

GND2

VCC2

GND3

CNTRL0

CNTRL1

SM-20L Package Drawing

C

D

E

F

G

A

B

H