TDA7479DTR STMicroelectronics, TDA7479DTR Datasheet - Page 8
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TDA7479DTR
Manufacturer Part Number
TDA7479DTR
Description
IC DEMODULTR/FILTER RDS 16-SOIC
Manufacturer
STMicroelectronics
Datasheet
1.E-TDA7479ADTR.pdf
(12 pages)
Specifications of TDA7479DTR
Function
Demodulator, Filter
Current - Supply
11mA
Voltage - Supply
4.5 V ~ 5.5 V
Package / Case
16-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain
-
Noise Figure
-
P1db
-
Lo Frequency
-
Rf Frequency
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7479DTR
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
TDA7479DTR-3B
Manufacturer:
PHI
Quantity:
4 675
Oscillator controls (FSEL, OSEL)
4
8/12
Oscillator controls (FSEL, OSEL)
Three different crystal frequencies can be used. The adoption of the internal clock divider to
the external crystal is achieved via the input pin FSEL. See the following table for reference:
Table 6.
A special mode is introduced to reduce EMI. With pin OSEL connected to GND the internal
oscillator is switched off and an external sinusoidal frequency could be applied on OSCIN.
The peak to peak voltage of this signal can be reduced down to 60mV.
In this mode the frequency selection via FSEL is still active.
Suggested values of C1 and C2 are shown in the following table:
Table 7.
17.328MHz
4.332MHz
8.664MHz
Crystal
17.328MHz
4.332MHz
8.664MHz
Crystal
Crystal frequencies
C1 and C2 value
connected to GND or open connected to Vs external resistor of 100K to Vs
27pF
27pF
27pF
C1
FSEL (pin configuration)
47pF
C2
-
-
TDA7479