TRF7963ARHBR Datasheet, PDF (5/63 Pages) Texas Instruments – FULLY INTEGRATED 13.56-MHz RFID EADER/WRITER FOR ISO14443A,B/NFC STANDARDS

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2 Physical Characteristics
2.1 Device Pinout
TRF7963A
SLOS758C – DECEMBER 2011 – REVISED JANUARY 2013
RHB PACKAGE
(TOP VIEW)
VDD_A
VIN
VDD_RF
VDD_PA
TX_OUT
VSS_PA
VSS_RX
RX_IN1
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
Thermal Pad
21
5 ^{(Connect to Ground)} 20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
I/O_7
I/O_6
I/O_5
I/O_4
I/O_3
I/O_2
I/O_1
I/O_0
Figure 2-1. TRF7963A Pin Assignment
2.2 Terminal Functions
Terminal
Name
No.
VDD_A
1
VIN
2
VDD_RF
3
VDD_PA
4
TX_OUT
5
VSS_PA
6
VSS_RX
7
RX_IN1
8
RX_IN2
9
VSS
10
BAND_GAP
11
ASK/OOK
12
IRQ
13
MOD
14
VSS_A
15
VDD_I/O
16
Table 2-1. Terminal Functions
Type ⁽¹⁾
Description
OUT
SUP
OUT
INP
OUT
SUP
SUP
INP
INP
SUP
OUT
BID
OUT
INP
OUT
SUP
INP
Internal regulated supply (2.7 V to 3.4 V) for analog circuitry
External supply input to chip (2.7 V to 5.5 V)
Internal regulated supply (2.7 V to 5 V); normally connected to VDD_PA (pin 4)
Supply for PA; normally connected externally to VDD_RF (pin 3)
RF output (selectable output power: 100 mW or 200 mW, with V_DD = 5 V)
Negative supply for PA; normally connected to circuit ground
Negative supply for receive inputs; normally connected to circuit ground
Main receive input
Auxiliary receive input
Chip substrate ground
Bandgap voltage (V_BG = 1.6 V); internal analog voltage reference
Selection between ASK and OOK modulation (0 = ASK, 1 = OOK) for Direct Mode 0 and 1.
It can be configured as an output to provide the received analog signal output.
Interrupt request
External data modulation input for Direct Mode 0 or 1
Subcarrier digital data output (see register 0x1A and 0x1B definitions)
Negative supply for internal analog circuits; connected to GND
Supply for I/O communications (1.8 V to VIN) level shifter. VIN should be never exceeded.
(1) SUP = Supply, INP = Input, BID = Bidirectional, OUT = Output
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Physical Characteristics
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