–

–

–

–

12

13

Supply for the module is connected through R17. This can be removed and

replaced by another supply or used to measure the current consumption of

the module.

Figure 11 shows the bottom of the board.

SW1 and SW2 connect the USB interface to the Command Data Interface

lines on the module. This allows the prototype board to be used with the

development kit software or a custom application. When in the “USB

Connected position”, the module is connected to the USB interface. The

“Header Only” position connects the module to the header.

Footprints for 0603 size resistors are on most lines so that pull-ups or

pull-downs can easily be added to the lines. The pads are connected to

V

schematic at the end of this document shows how each line is connected.

available for additional circuitry when plugged into a PC. If more current

is required, the user must power the board from an external supply or a

USB charger with more current capabilities, up to 1A.

Figure 11: Prototype Board Bottom Side

The LADJ line has pads for both a pull up and pull down resistor. This can

be populated based on the needs of the specific module that is connected

a voltage divider that determines the output power level. Please see the

Figure 12 shows a convenient cross reference showing which lines on the

module connect to which lines on the prototype board.

Module to Prototype Board Pin Number Cross Reference

Pin Name

Module Pin Number

Prototype Board Pin Number

MODE_IND

30

7

RESET

22

8

CMD_DATA_IN

27

9

POWER_DOWN

12

10

LATCH_EN

13

11

ACK_EN

28

13

PAIR

29

14

CMD_DATA_OUT

26

15

VCC

21

17

LVL_ADJ

32

18

C0

10

19

C1

11

21

S0

8

38

S1

7

39

S2

6

40

S3

5

41

S4

4

42

S5

3

43

S6

2

44

S7

1

45

ACK_OUT

31

46

Figure 12: Module to Prototype Board Pin Number Cross Reference