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TDA7566 датащи(PDF) 22 Page - STMicroelectronics

номер детали TDA7566
подробное описание детали  4 x 40 W multifunction quad power amplifier with built-in diagnostics features
PDF  29 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7566 датащи(HTML) 22 Page - STMicroelectronics

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Software specifications
TDA7566
22/29
Doc ID 9801 Rev 6
If R/W = 1, the TDA7566 sends 4 "Diagnostics Bytes" to mP: DB1, DB2, DB3 and DB4.
Table 7.
IB2
Bit
Instruction decoding bit
D7
0
D6
0
D5
0
D4
Standby on - Amplifier not working - (D4 = 0)
Standby off - Amplifier working - (D4 = 1)
D3
Power amplifier mode diagnostic (D3 = 0)
Line driver mode diagnostic (D3 = 1)
D2
Current detection diagnostic enabled (D2 = 1)
Current detection diagnostic defeat (D2 = 0)
D1
0
D0
0
Table 8.
DB1
Bit
Instruction decoding bit
D7
Thermal warning active (D7 = 1)
D6
Diag. cycle not activated or not terminated (D6 = 0)
Diag. cycle terminated (D6 = 1)
D5
Channel LF
Current detection
Output peak current < 250mA - Open load (D5 = 1)
Output peak current > 500mA - Open load (D5 = 0)
D4
Channel LF
Turn-on diagnostic (D4 = 0)
Permanent diagnostic (D4 = 1)
D3
Channel LF
Normal load (D3 = 0)
Short load (D3 = 1)
D2
Channel LF
Turn-on diag.: No open load (D2 = 0)
Open load detection (D2 = 1)
Offset diag.: No output offset (D2 = 0)
Output offset detection (D2 = 1)
D1
Channel LF
No short to Vcc (D1 = 0)
Short to Vcc (D1 = 1)
D0
Channel LF
No short to GND (D1 = 0)
Short to GND (D1 = 1)



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