Pin Assignment

Pin Description

Pin No.

Pin Name

External Components

Description

1

XOUT

For 433.92MHz add18pF capacitor

For 315MHz add 15pF capacitor

Crystal Fs output

2

DIN

ASK data input

3

CREF

Output clock (Fs/65536) to MCU I/O

433.92MHz:Typ 207Hz

315MHz: Typ 150Hz

4

EN

Pull high resistor

High: RF always on

Low: DIN high trigger RF on

5

VDD

10

mF decoupling capacitor

Power supply

6

PA_OUT

L/C matched circuit

Power amplifier output

7

VSS

Ground

8

XIN

For 433.92MHz add 18pF capacitor

For 315MHz add 15pF capacitor

Crystal Fs input

Absolute Maximum Ratings

Storage Temperature Range ..............................................................................................................

-50°Cto+125°C

Lead Temperature (soldering, 10 seconds)........................................................................................................+ 300

°C

ESD HBM ..............................................................................................................................................................

±5KV

ESD MM ..............................................................................................................................................................

±400V

Ambient Operating Temperature (TA) ....................................................................................................

-40°Cto+85°C

Programmable Transmitter Frequency Ran.....................................................................................300MHz to 450MHz

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed

in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT9831

Rev. 1.20

2

November 5, 2014

H T 9 8 3 1

8 S O P - A / T S S O P - A

X O U T

D I N

C R E F

E N

X I N

V S S

P A O U T

V D D

1

2

3

4

8

7

6

5