TDA7406TR STMicroelectronics, TDA7406TR Datasheet - Page 43

• Manufacturer Part Number: TDA7406TR
• Description: IC PROCESSOR CAR SIGNAL 44-TQFP
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of TDA7406TR

• Applications: Automotive Systems
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7406
11
Quality detector
The TDA7406 offers a quality detector output which gives a voltage representing the FM-
reception conditions. To calculate this voltage the MPX-noise and the multipath-detector
output are summed according to the following formula:
The noise-signal is the PEAK-signal without additional influences (see noiseblanker
description). The factor 'a' can by programmed from 0.7 to 1.15. The output is a low
impedance output able to drive external circuitry as well as simply fed to an AD-converter for
RDS applications.
V
Qual
= 1.6 (V
Noise
-0.8 V)+ a (REF5V-V
Mpout
).
Quality detector
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