TEA0675T PHILIPS [NXP Semiconductors], TEA0675T Datasheet - Page 9

• Manufacturer Part Number: TEA0675T
• Description: Dual Dolby* B-type noise reduction circuit for playback applications
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 1 Blank delay time set by resistor R
General note
It is recommended to switch off V
between tape and tape head while switching off.
1996 Jun 07
handbook, full pagewidth
Dual Dolby* B-type noise reduction circuit
for playback applications
(1) AMS threshold level for application circuit (Fig.1).
(2) AMS threshold level for test circuit (Fig.24).
(dB)
20
30
40
50
60
RESISTOR VALUE R
10
2
1000
(k )
150
180
220
270
330
470
560
680
820
68
(1)
(2)
t
CC
with a gradient of 400 V/s at maximum to avoid plops on tape in the event of contact
10
t
3
at pin TD
Fig.3 AMS threshold level.
DELAY TIME t
TYP. (ms)
126
142
160
112
23
42
48
56
65
76
98
9
d
10
4
TOLERANCE
(Hz)
Preliminary specification
(%)
20
15
15
15
10
10
10
10
10
10
10
TEA0675
MED623
10
5