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ST7538Q Datenblatt(PDF) 6 Page - STMicroelectronics

Teilenummer ST7538Q
Bauteilbeschribung  FSK power line transceiver
PDF  44 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7538Q Datenblatt(HTML) 6 Page - STMicroelectronics

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Pin settings
ST7538Q
6/44
2.2
Pin description
Table 1. Pin description
Pin N°
Name
Type
Description
1
CD_PD
Digital/Output
Carrier, Preamble or Frame Header Detect Output.
"1" No Carrier, Preamble or Frame Header Detected
"0" Carrier, Preamble or Frame Header Detected
2
DVss
Supply
Digital Ground
3
RxD
Digital/Output
RX Data Output.
4
RxTx
Digital/Input
with internal pull-up
Rx or Tx mode selection input.
"1" - RX Session
"0" - TX Session
5
TxD
Digital/Input
with internal pull-down
TX Data Input.
6
GND
Supply
Substrate Ground (same function as PIN 41)
7
TOUT
Digital/Output
TX Time Out Event Detection
"1" - Time Out Event Occurred
"0" - No Time-out Event Occurred
8
CLR/T
Digital/Output
Synchronous Mains Access Clock or
Control Register Access Clock
9
BU
Digital/Output
Band in use Output.
"1" Signal within the Programmed Band
"0" No Signal within the Programmed Band
10
DVdd
Supply
Digital Supply Voltage or 3.3V Voltage Regulator Output
11
MCLK
Digital/Output
Master Clock Output
12
RSTO
Digital/Output
Power On or Watchdog Reset Output
13
UART/SPI
Digital/Input
with internal pull-down
Interface type:
“0” - Serial Peripheral Interface
“1” - UART Interface
14
WD
Digital/Input
with internal pull-up
Watchdog input. The Internal Watchdog Counter is cleared on the
falling edges.
15
ZCOUT
Digital/Output
Zero Crossing Detection Output
16
ZCIN(1)
Analog/Input
Zero Crossing AC Input.
17
NC
Floating
Must be connected to DVss.
18
DVss
Supply
Digital Ground
19
ATOP1
Power/Output
Power Line Driver Output
20
PAVss
Supply
Power Analog Ground
21
ATOP2
Power/Output
Power Line Driver Output
22
PAVCC
Supply
Power Supply Voltage
23
CL(2)
Analog/Input
Current Limiting Feedback.
A resistor between CL and AVss sets the PLI Current Limiting Value
An integrated 80pF filtering input capacitance is present on this pin
24
ATO
Analog/Output
Small Signal Analog Transmit Output



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