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AFE031 데이터시트(PDF) 41 Page - Texas Instruments

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부품명 AFE031
상세설명  Powerline Communications Analog Front-End
PDF  57 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
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AFE031 데이터시트(HTML) 41 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
AFE031
www.ti.com
SBOS531D – AUGUST 2010 – REVISED MAY 2012
Table 18 lists the register contents associated with each interrupt condition.
Table 18. Register Contents to Configure the Interrupt Pin
CONTROL2 REGISTER CONTENTS:
DETERMINE INTERRUPT PIN FUNCTIONALITY
I_FLAG_EN
T_FLAG_EN
(CURRENT
(THERMAL
OVERLOAD)
OVERLOAD)
FUNCTION
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
0
1
1
overload
TSENSE Pin (10)
The TSENSE pin is internally connected to the anode of a temperature-sensing diode located within the PA
output stage. Figure 45 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 45. 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.
Copyright © 2010–2012, Texas Instruments Incorporated
41
Product Folder Link(s): AFE031



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