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TRF7960RHBRG4Datasheet PDF
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TRF7960
TRF7961
www.ti.com
SLOU186F–AUGUST 2006–REVISED AUGUST 2010
3 Physical Characteristics
3.1 Terminal Functions
Figure 3-1. TRF796x Pin Assignments (Top View)
Table 3-1. Terminal Functions
TERMINAL
TYPE
(1)
DESCRIPTION
NAME NO.
VDD_A 1 OUT Internal regulated supply (2.7 V – 3.4 V) for analog circuitry
VIN 2 SUP External supply input to chip (2.7 V – 5.5 V)
VDD_RF 3 OUT Internal regulated supply (2.7 V – 5 V), normally connected to VDD_PA (pin 4)
VDD_PA 4 INP Supply for PA; normally connected externally to VDD_RF (pin 3)
TX_OUT 5 OUT RF output (selectable output power, 100 mW at 8 Ω or 200 mW at 4 Ω, with VDD = 5 V)
VSS_RF 6 SUP Negative supply for PA; normally connected to circuit ground
VSS_RX 7 SUP Negative supply for RX inputs; normally connected to circuit ground
RX_IN1 8 INP RX input, used for AM reception
RX_IN2 9 INP RX input, used for PM reception
VSS 10 SUP Chip substrate ground
BAND_GAP 11 OUT Band-gap voltage (1.6 V); internal analog voltage reference; must be ac-bypassed to ground.
Also can be configured to provide the received analog signal output (ANA_OUT)
ASK/OOK 12 BID
Direct mode, selection between ASK and OOK modulation (0 = ASK, 1 = OOK)
IRQ 13 OUT Interrupt request
MOD 14 INP Direct mode, external modulation input
VSS_A 15 SUP Negative supply for internal analog circuits; normally connected to circuit ground
Supply for I/O communications (1.8 V – 5.5 V). Should be connected to VIN for 5-V
VDD_I/O 16 SUP
communication, VDD_X for 3.3-V communication, or any other voltage from 1.8 V to 5.5 V.
I/O_0 17 BID I/O pin for parallel communication
I/O_1 18 BID I/O pin for parallel communication
I/O_2 19 BID I/O pin for parallel communication
I/O_3 20 BID I/O pin for parallel communication
I/O_4 21 BID I/O pin for parallel communication
(1) SUP = Supply, INP = Input, BID = Bi-directional, OUT = Output
Copyright © 2006–2010, Texas Instruments Incorporated Physical Characteristics 5
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