User's Manual

ManualsBrandsAeroComm ManualsElectronicsFREQUENCY HOPPING SPREAD SPECTRUM TRANSCEIVER

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Laird Technologies

LT2510

Wireless Module

TABLE 2: PIN DEFINITIONS FOR THE LT2510 TRANSCEIVER

SMT PIN PLUGGABLE

TYPE SIGNAL NAME FUNCTIONS

1 7 O GO_0/

Hop_Frame

Generic Output/Hop_Frame

2 6 O GO_1 Generic Output

3 8 DNC Do not connect.

4 17 Reserved Reserved for future use

5 19 O PWM_Output PWM Output

6 3 I RXD Asynchronous serial data input to transceiver

7 2 O TXD Asynchronous serial data output from transceiver

8 10 GND GND Signal Ground

9 1 PWR Vcc 3.3 - 3.6 V ±50mV ripple (must be connected)

10 - PWR Vpa 3.3 – 3.6 V +/-50mV ripple (must be connected)

11 - GND GND Signal Ground

12 9 I Test Test Mode – When pulled logic Low and then applying power or resetting,

the transceiver’s serial interface is forced to a 9600, 8-N-1 rate. To exit Test

Mode, the transceiver must be reset or power-cycled with Test Mode pulled

logic High or left oating/disconnected.

Note: Because this mode disables some modes of operation, it should not be

permanently pulled Low during normal operation.

13 14 I DI0 Digital Input 0

14 5 I UP_Reset RESET – Controlled by the LT2510 for power-on reset if left

unconnected. After a stable power-on reset, a logic Low pulse will reset the

transceiver.

15 11 I CMD/Data When logic Low, the transceiver interprets OEM Host data as command

data. When logic High, the transceiver interprets OEM Host data as trans-

mit data.

16 15 O In Range When logic low, the client is in range and synchronized with a server. This

will always be low on a Server.

17 16 I RTS Request to Send. Floats high if left unconnected, when enabled the

module

will not transmit data out the Serial UART unless the pin is low

18 12 O CTS Clear to Send - Active Low when the transceiver is ready to accept data for

transmission.

19 14 I DI1 Digital Input 1

20 13 Reserved Reserved for future use. Do not connect.

21 4 Reserved Reserved for future use. Do not connect.

22 20 I AD_In Analog to Digital Input

SPECIFICATIONS

ENGINEER’S TIP

• All I/O is 3.3V TTL.

• All inputs are weakly pulled High via a 20kOhm pull-up resistor and may be left oating during normal operation

• Minimum Connections: VCC, VPA, GND, TXD, & RXD

• Signal direction is with respect to the transceiver

• Unused pins should be left disconnected