Terminal Configuration And Functions; Pin Diagram; Signal Descriptions - Texas Instruments TRF7970A Manual

TRF7970A
SLOS743L – AUGUST 2011 – REVISED MARCH 2017

4 Terminal Configuration and Functions

4.1

Pin Diagram

Figure 4-1 shows the pinout for the 32-pin RHB package.
4.2

Signal Descriptions

Table 4-1 describes the signals.
TERMINAL
NAME NO.
V 1
DD_A
V 2
IN
V 3
DD_RF
V 4
DD_PA
TX_OUT 5
V 6
SS_PA
V 7
SS_RX
RX_IN1 8
RX_IN2 9
V 10
SS
BAND_GAP 11
ASK/OOK 12
(1) SUP = Supply, INP = Input, BID = Bidirectional, OUT = Output
8 Terminal Configuration and Functions
32 31 30
VDD_A 1
VIN 2
VDD_RF 3
VDD_PA 4
TX_OUT 5
VSS_PA 6
VSS_RX
7
RX_IN1
8
9 10 11
Figure 4-1. 32-Pin RHB Package (Top View)
Table 4-1. Terminal Functions
(1)
TYPE
OUT Internal regulated supply (2.7 V to 3.4 V) for analog circuitry
SUP External supply input to chip (2.7 V to 5.5 V)
OUT Internal regulated supply (2.7 V to 5 V), normally connected to V
INP Supply for PA; normally connected externally to V
OUT RF output (selectable output power, 100 mW or 200 mW, with V
SUP Negative supply for PA; normally connected to circuit ground
SUP Negative supply for RX inputs; normally connected to circuit ground
INP Main RX input
INP Auxiliary RX input
SUP Chip substrate ground
OUT Bandgap voltage (V
Selection between ASK and OOK modulation (0 = ASK, 1 = OOK) for direct mode 0 or 1.
BID
Can be configured as an output to provide the received analog signal output.
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29 28 27 26 25
Pad
12 13 14 15 16
DESCRIPTION
DD_RF
= 1.6 V); internal analog voltage reference
BG
Copyright © 2011–2017, Texas Instruments Incorporated
TRF7970A
I/O_7
24
23 I/O_6
22 I/O_5
21 I/O_4
20 I/O_3
19
I/O_2
I/O_1
18
17 I/O_0
(pin 4)
DD_PA
(pin 3)
= 5 V)
DD
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