TDA7402 STMicroelectronics, TDA7402 Datasheet - Page 30

• Manufacturer Part Number: TDA7402
• Description: IC PROCESSOR CAR SIGNAL 44-LQFP
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of TDA7402

• Applications: Automotive Systems
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Case: QFP
• Dc: 05+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Audioprocessor part
3.15
3.16
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Speaker attenuator and mixing
A mixing-stage is placed after each speaker attenuator and can be set independently to
mixing mode. Having a full volume for the mix signal the stage offers a wide flexibility to
adapt the mixing levels.
Figure 23. Output selector
Audioprocessor testing
During the testmode, which can be activated by setting bit D
byte and the audioprocessor testing byte, several internal signals are available at the FD2R
pin. During this mode the input resistance of 100kOhm is disconnected from the pin. The
internal signals available are shown in the data byte specification.
FROM OUTPUT
FROM MIXING
SELECTOR
SELECTOR
FRONT
REAR
+15/-79dB
+15/-79dB
+15/-79dB
VOLUME
VOLUME
VOLUME
1dB Step
1dB Step
1dB Step
25K
25K
25K
25K
0
of the stereo decoder testing
D00AU1164
1
1
OUTF
OUTR
TDA7402