TDA7400 ST Microelectronics, TDA7400 Datasheet - Page 26

• Manufacturer Part Number: TDA7400
• Description: ADVANCED CAR SIGNAL PROCESSOR
• Manufacturer: ST Microelectronics

TDA7400
Stereodecoder Adjustment (subaddress EH)
Testing (subaddress FH)
Note : This byte is used fortesting or evaluation purposes only and must not be set to other values than the default ”11111110” in the application!
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MSB
MSB
D7
D7
1
0
1
D6
D6
0
0
0
1
0
1
:
D5
D5
0
0
0
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
:
D4
D4
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
:
D3
D3
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
:
D2
D2
0
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
:
:
D1
D1
0
0
1
0
1
0
1
:
:
LSB
LSB
D0
D0
0
1
0
0
1
0
1
:
:
Roll Off Compensation
not allowed
19.6%
21.5%
:
25.3%
:
31.0%
Level Gain
0dB
0.66dB
1.33dB
:
10dB
must be ”1”
Stereodecoder test signals
OFF
Test signals enabled if bit D5 of the subaddress
(test mode bit) is set to ”1”, too
External Clock
Internal Clock
Testsignals at CASS_R
VHCCH
Level intern
Pilot magnitude
VCOCON; VCO Control Voltage
Pilot threshold
HOLDN
NB threshold
F228
VHCCL
VSBL
not used
not used
PEAK
not used
REF5V
not used
VCO
OFF
ON
Audioprocessor test mode
enabled if bit D5 of the subaddress
(test mode bit) is set to ”1”
OFF
FUNCTION
FUNCTION