tda6812-5 ETC-unknow, tda6812-5 Datasheet - Page 10

• Manufacturer Part Number: tda6812-5
• Description: Tv-stereo Processor
• Manufacturer: ETC-unknow

g) Switching Byte IV
MSB
MPX0
MPX0
0
0
1
Settings specially recommended for crystal operation
0
0
MXP-period = 2 s means that identification-signal decoder searches 1 s for dual and 1 s for stereo.
It is basically permissible, for the given C
QSt
QSt
BE
BE
Mono
Mono
P1
P1
P2
P2
Matrix
Matrix
h) Talk Mode
MSB
St
0
1
0
1
CL = 1
T3 thru T5 are test bits.
Semiconductor Group
MPX1
0
1
0
0
1
•
MPX1
•
D
0
0
1
1
Loudspeaker signal path at clipping limit
(CL is automatically reset after each reading operation)
=
=
=
=
=
=
=
=
=
=
=
=
0
1
0
1
0
1
0
1
0
1
0
1
•
QSt
MPX-Period
2 s
4 s
8 s
2 s
4 s
•
T3
Decoder detects mono
Decoder detects stereo
Decoder detects dual
Suppressed internally
Quasi-stereo OFF; power ON
Quasi-stereo ON
Stereo base enlargement OFF; power ON
Stereo base enlargement ON
Identification-signal decoder set to stereo and held; power ON
Normal operation of identification-signal decoder
Port 1 (open collector) low (low-impedance); power ON
Port 1 high (high impedance)
Port 2 (open collector) low (low-impedance); power ON
Port 2 high (high impedance)
Gain matrix 0 dB
Gain matrix 6 dB; power ON
•
BE
•
T4
Power-ON
•
Mono
•
T5
36,38
•
P1
, to make the MPX period longer, but not shorter.
•
CL
Recommended C
1 F
470 nF
330 nF
122
2.2 F
4.7 F
•
P2
•
X
LSB
Matrix
LSB
X
36,38
Perm. Xtal Tolerances
20 ppm
10 ppm
40 ppm
70 ppm
5 ppm
TDA 6812-5