User's Manual

ManualsBrandsTexas Instruments ManualsElectronicsThe TRF7960ATB and TRF7970ATB modules are development platforms for integrated analog front end and data-framing device operating as 13.56-MHz RFID Near Field Communication systems.

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INFORMATION -

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INTERNAL DATA R F I D SYSTEMS 0

S P E C I F I C A T I O N

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5. TRF79x0ATB Connections/Technical Details

Connector P1/RF1

Pin # Signal Name Description

1 GND Ground

2 n/c

3 MOD Direct mode, external modulation input

4 n/c

5 n/c

6 n/c

7 IRQ Interrupt request (from TRF79x0A to MCU)

8 n/c

9 SYS_CLK

Clock for MCU (optional)

If EN = 0 and EN2 = 1, then system clock is set to 60 kHz

10 EN Chip enable input (If EN = 0, then chip is in power-down mode).

11 n/c

12 EN2

Pulse enable and selection of power down mode. If EN2 is connected to VIN, then

VDD_X is active during power down to support the MCU. Pin can also be used for

pulse wake-up from power-down mode.

13 n/c

SLAVE

SELECT

Slave Select, I/O_4 (Active Low)

15 n/c

16 DATA_CLK Data Clock Input for MCU Communication (from MCU)

17 n/c

18 MOSI I/O_7, Master Out, Slave In (Data In from MCU)

19 GND Ground

20 MISO I/O_6, Master In, Slave Out (Data Out from TRF7960)

Connector P2/RF2

Pin # Signal Name Description

1 n/c

2 n/c

3 n/c

4 n/c

5 n/c

6 n/c

7 +3.3VDC IN +VDC in (to TPS61222DCKT for generation of +5VDC)

8 n/c

9 +3.3VDC IN +VDC in (to TPS61222DCKT for generation of +5VDC)

10 n/c

11 n/c

12 n/c

13 n/c

14 n/c

15 n/c

16 n/c

17 n/c

18 ASK/OOK

Direct mode, selection between ASK and OOK modulation (0 = ASK, 1 = OOK)

Also can be configured to provide the received analog signal output (ANA_OUT)

19 n/c

20 n/c