User's Manual

Viewsonic Tweety RF Remote Rev 2.9A November 05, 2001

Universal Electronics Inc. Confidential Page 41 of 63

5 Hardware Interface

The interface to the module shall be as described in the table below.

Table 1. Hardware Interface

Parameter Pin Number Tx Module

Input voltage - Vcc 1 2.2 volts

Ground 2 Ground

Data 3 Data input

Synthesizer enable 4 TTL input

Synthesizer SDA 5 TTL input

Synthesizer SCK 6 TTL input

5.1 Transmitter Outline /Interface

Dimension 28* 22*8 mm or smaller if 04/02 components are used

1. Vcc (2.2 V)

2. GND

3. Data in (Vp-p = 0.1V)

4. LE (TTL)

5. SDA (TTL)

6. SCK (TTL)

( Top View )