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AFE031 Datasheet(PDF) 39 Page - Texas Instruments

Part # AFE031
Description  AFE031 Powerline Communications Analog Front-End
PDF  59 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

AFE031 Datasheet(HTML) 39 Page - Texas Instruments

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0.1 F
m
10 kW
(typ)
10 kW
(typ)
10 kW
(typ)
10 kW
(typ)
TMP411
D+
D-
V+
1
8
7
6
4
5
3
2
GND
SCL
SDA
ALERT/THERM2
THERM
+3.3 V
SMBus
Controller
Over-Temperature
Fault
50 pF
50 W
TSENSE
AFE031
Copyright © 2017, Texas Instruments Incorporated
39
AFE031
www.ti.com
SBOS531E – AUGUST 2010 – REVISED JUNE 2019
Product Folder Links: AFE031
Submit Documentation Feedback
Copyright © 2010–2019, Texas Instruments Incorporated
Pin Descriptions (continued)
Table 8 lists the register contents associated with each interrupt condition.
Table 8. Register Contents to Configure the Interrupt Pin
FUNCTION
CONTROL2 REGISTER CONTENTS:
DETERMINE INTERRUPT PIN FUNCTIONALITY
I_FLAG_EN
(CURRENT
OVERLOAD)
T_FLAG_EN
(THERMAL
OVERLOAD)
D7
D6
D5
POR (default values)
undefined
0
0
No interrupt
0
0
0
Interrupt on thermal overload only
0
0
1
Interrupt on current overload only
0
1
0
Interrupt on thermal or current
overload
0
1
1
TSENSE Pin (10)
The TSENSE pin is internally connected to the anode of a temperature-sensing diode located within the PA
output stage. Figure 44 shows a remote junction temperature sensor circuit that can be used to measure the
junction temperature of AFE031. Measuring the junction temperature of the AFE031 is optional and not required.
Figure 44. Interfacing the TMP411 to the AFE031
Tx_FLAG (Pin 47)
The Tx_FLAG pin is an open drain output that indicates the readiness of the Tx signal path for transmission.
When the Tx_FLAG pin is high, the transmit signal path is enabled and ready for transmission. When the
Tx_FLAG pin is low, the transmit path is not ready for transmission.
Rx_FLAG (Pin 48)
The Rx_FLAG pin is an open drain output that indicates the readiness of the Rx signal path for transmission.
When the Rx_FLAG pin is high, the transmit signal path is enabled and ready for transmission. When the
Rx_FLAG pin is low, the transmit path is not ready for transmission.



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