參數(shù)資料
型號: TDA7566
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 60 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25
封裝: ROHS COMPLIANT, FLEXIWATT-25
文件頁數(shù): 5/29頁
文件大?。?/td> 364K
代理商: TDA7566
TDA7566
Diagnostics functional description
Doc ID 9801Rev 5
Figure 17.
SVR and output behavior (case 1: without turn-on diagnostic)
Figure 18.
SVR and output pin behavior (case 2: with turn-on diagnostic)
The information related to the outputs status is read and memorized at the end of the
current pulse top. The acquisition time is 100 ms (typ.). No audible noise is generated in the
process. As for short to GND / Vs the fault-detection thresholds remain unchanged from
26 dB to 12 dB gain setting. They are as follows:
Figure 19.
Thresholds for short to GND/VS
Bias (power amp turn-on)
t
Diagnostic Enable
(Permanent)
Permanent diagnostic
acquisition time (100mS Typ)
Permanent Diagnostics data (output)
permitted time
I2CB DATA
Vsvr
Out
FAULT
event
Read Data
Bias (power amp turn-on)
permitted time
Turn-on diagnostic
acquisition time (100mS Typ)
t
Read Data
Permanent diagnostic
acquisition time (100mS Typ)
Permanent Diagnostics data (output)
permitted time
Diagnostic Enable
(Turn-on)
Turn-on Diagnostics data (output)
permitted time
I2CB DATA
Vsvr
Out
Diagnostic Enable
(Permanent)
FAULT
event
D01AU1253
S.C. to GND
x
S.C. to Vs
0V
1.8V
VS-1.8V
VS
x
Normal Operation
1.2V
VS-1.2V
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