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Philips Semiconductors
User Manual of High-End RDS/EON
Car Radio System CCR612 (V0.3)
Application Note
96029
3 SHORT SPECIFICATION
Tuning
Frequency bands:
Optionally the following frequency bands are used:
FM: 87.50 - 108.00 MHz (50 / 100 kHz steps) }
MW: 531 - 1629 kHz (9 kHz steps) } For application in Europe
LW: 144 - 288 kHz (1 kHz steps) }
SW: 5.9 - 6.2 MHz (1 kHz steps) }
FM: 87.90 - 107.90 MHz (100 / 200 kHz steps) }
MW: 530 - 1710 kHz (10 kHz steps) } For application in USA
SW: 5.9 - 6.2 MHz (1 kHz steps) }
PLL tuning principle
Manual tuning up / down
First one step, next after 0.5 seconds. Fast repetition at 12.5 times per second.
Local/Dx switching
The Local/Dx feature controls the search sensitivity. Default after switching on is always Dx.
In the TEA6811 a tuner attenuator for the FM-band is incorporated.
Search tuning up / down
Sensitivity is controlled by Local/Dx. If after one complete band sweep in Local mode no station is
found, the radio switches automatically to Dx. During search tuning the running frequency is displayed
and the radio is muted.
Frequency Scan
Continuous automatic search tuning, pausing for 6 seconds on every station.
AST (Automatic Store Tuning) for FM and MW band
AST switches to FM-AST or MW-AST band, searches for the 6 strongest transmitters in the band and
stores them in the AST programme preset memory. In FM, duplication of PI codes will be avoided.
Programme preset memory
For each band (FM1, FM2, MW, LW, SW (49m), FM-AST and MW-AST) 6 programme presets and a
"manual" frequency are stored. In FM, additional RDS information is stored: PI code (Programme
Identification), PS name (Programme Service), AF list (Alternative Frequencies) and AF follow mode
on/off.
Whenever another band is selected, the radio reverts to the last frequency tuned to in the new band
(this can be either a preset frequency or a manually tuned frequency).
Programme preset up / down control
Programme presets can be stored and recalled by two key control (up and down) or by 6 separate
preset keys.
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