TEA0679 Ver la hoja de datos (PDF) - Philips Electronics
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TEA0679
Philips Electronics
TEA0679 Datasheet PDF : 40 Pages
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Philips Semiconductors
I2C-bus controlled dual Dolby* B-type noise
reduction circuit for playback applications
Product specification
TEA0679T
General note
It is recommended to switch off VCC with a gradient of 400 V/s at maximum to avoid plops on tape in the event of contact
between tape and tape head while switching off.
AMS delay time
Table 1 AMS delay time set by resistor Rt at pin TD
RESISTOR VALUE Rt (kΩ)
68
150
180
220
270
330
470
560
680
820
1 000
DELAY TIME td TYP. (ms)
23
42
48
56
65
76
98
112
126
142
160
TOLERANCE (%)
20
15
15
15
10
10
10
10
10
10
10
AMS threshold level
handbook−,2h0alfpage
(1)
AMS(P-M)
(dB)
(2)
−30
−40
−50
−60
102
103
MHB119
104 f (Hz) 105
(1) AMS threshold level for application circuit (see Fig.1).
(2) AMS threshold level for test circuit (see Fig.40).
Fig.3 AMS threshold level.
1998 Nov 12
10
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