tea5767hn NXP Semiconductors, tea5767hn Datasheet - Page 9

• Manufacturer Part Number: tea5767hn
• Description: Low-power Fm Stereo Radio For Handheld Applications
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TEA5767HN_5
Product data sheet
Fig 3. Flowchart auto search or preset
Add 100 kHz to the tuning memory
tuning limit
exceeded?
upwards?
Search
Upper
yes
no
Rev. 05 — 26 January 2007
no
yes
Set 'band limit' flag
Substract 100 kHz to the tuning memory
Low-power FM stereo radio for handheld applications
tuning limit
exceeded?
Lower
no
Reset IF counter and enable counting
Have the result available for the bus
Wait 10 ms. Have the signal level
Write result to the programmable
divider (also available at the bus)
Completed bytes are written to
no
Use value of tuning memory:
microprocessor is required
All other status is random
Complete initialization by
Mute, stand-by activated
Bits are clocked into the
the destinastion register
available at the bus
Reset bit counter:
receive register
Wait for result
Write enable
Power on:
activated?
level OK?
yes
Search
Search
Mode?
Mode?
Signal
yes
no
yes
yes
no
no
no
TEA5767HN
Set 'found' flag
IF frequency
OK?
yes
© NXP B.V. 2007. All rights reserved.
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