User's Manual

9XTend™ OEM RF Module - Product Manual v2.x6x

Electrical Characteristic

Figure 1-02. System Block Diagram

Basic RF Link between Hosts

The data flow sequence is initiated when the first byte of data is received in the DI Buffer of the

transmitting module (XTend RF Module A). As long as XTend RF Module A is not already receiving

RF data, data in the DI Buffer is packetized then transmitted over-the-air to XTend RF Module B.

Timing Specifications

Figure 1-03. Timing Specations (‘A’ and ‘B’ refer to Figure 1-02)

Table 1-04. AC Characteristics (Symbols correspond with Figure 1-02 and Figure 1-03, ATSY Parameter = 0)

Symbol Description Sleep Mode 115200 Baud Rate 9600 Baud Rate

Latency from the time data is

transmitted until it is received.

SM = 0

(No sleep)

cesm 49cesm 4.9

ces 61ces 618 = MS

ces 8ces 87 = MS

ces 4ces 46 = MS

ces 2ces 25 = MS

ces 1ces 14 = MS

Time that TX_PWR pin (pin 4) is driven

low

cesm 6.92cesm 54.2--

Time that RX LED (pin 3)

is driven high

cesm 2.72cesm 62.2--

CLDL

Time starting when CTS goes low until

the first bit appears on DOUT

cesμ 57cesμ 44--

CHDH

Time after last bit of data until

CTS

goes high

cesμ 7cesμ 7--