-5-

RF83//RF83C/RF83L/RF83CL ASK/OOK Receiver V2.0

 

Tel: +86‐755‐82973805  Fax: +86‐755‐82973550  E‐mail: sales@hoperf.com  http://www.hoperf.com 

4. 8-Pin Options

The standard 16-pin package allows complete control of all configurable features. Some reduced

function 8-pin versions are also available.

For high-volume applications additional customized 8-pin devices can be produced. SWEN, SEL0

and SEL1 pins are internally bonded to reduce the pin count. Pin 6 may be configured as either

SHUT or WAKEB.

SEL0

SEL1

Demodulator Bandwidth

Sweep Mode

Fixed Mode

1

1

5KHz

10KHz

0

1

2.5KHz

5KHz

1

0

1.25KHz

2.5KHz

0

0

0.625KHz

1.25KHz

Table 1. Nominal Demodulator Filter Bandwidth vs. SEL0, SEL1 and Operating Mode

5. Pin Description

RF83

16-Pin Pkg.

RF83C

8-Pin Pkg.

Pin

Name

Pin Function

1

SEL0

Bandwidth Selection Bit 0 (Digital Input): Used in

conjunction with SEL1 to set the desired demodulator filter

bandwidth. See Table 1. Internally pulled-up to VDDRF

2, 3

1

VSSRF

RF Power Supply: Ground return to the RF section power

supply.

4

2

ANT

Antenna (Analog Input): For optimal performance the

ANT pin should be impedance matched to the antenna. See

“Applications Information” for information on input

impedance and matching techniques

5

3

VDDRF

RF Power Supply: Positive supply input for the RF section

of the IC

6

VDDBB

Base-Band Power Supply: Positive supply input for the

baseband section (digital section) of the IC

7

4

CTH

Data Slicing Threshold Capacitor (Analog I/O): Capacitor

connected to this pin extracts the dc average value from the

demodulated waveform which becomes the reference for

the internal data slicing comparator

8

NC

Not internally connected

9

VSSBB

Base-Band Power Supply: Ground return to the baseband

section power supply