E-TDA7406 STMicroelectronics, E-TDA7406 Datasheet - Page 26

• Manufacturer Part Number: E-TDA7406
• Description: Audio DSPs CAR RADIO SIGNAL
• Manufacturer: STMicroelectronics

Specifications of E-TDA7406

• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-44
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description of the audioprocessor part
4.10
4.11
4.12
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Figure 17. AC/DC-coupling and Mix
Speaker-Attenuator stage
Each of the four speakers and the subwoofer output has a separate volume control in the
range: +15... -79dB plus mute with a typical value of -90dB.
Output Mixer
A Mixing-stage is placed after each speaker gain/attenuator stage and can be set
independently to mixing-mode.
Having a full volume control for the Mix-signal in the range:+15... -79dB plus mute with a
typical value of -90dB, the stage offers a wide flexibility to adapt the mixing levels.
Figure 18. Output Selector
Audioprocessor Testing
During the Test Mode, which can be activated by setting bit I
D
During this mode the input resistance of 100kΩ is disconnected from the pin. The internal
signals available are shown in the Data-byte specification.
0
of the audioprocessor testing byte, several internal signals are available at the Navi pin.
In
Inputs
2
of the subaddress byte and
TDA7406