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| U2730B-B Datasheet, PDF (7/12 Pages) TEMIC Semiconductors – L-Band Down-Converter for DAB Receivers | |||
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Application Circuit
Example: reference divider factor = 35, charge-pump current = 200 mA
VAGC
3.3µ
U2730B-B
8.5V
RF
10n
8.5V IF
1n
10n
1n
Rth
100p
100p
100p 100p
1n
10n 10n
Reference
oscillator
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
20k
8.5V
100p 100p
1n
100p
10n
8.5V
10n
8.5V
56p
100k
10p
Resonator
6.8p
10p
1.5p
47k
1k
1k
*)
*)
3.3n
3.3n
BBY51
*) optional components VTune
Figure 3. Application circuit
5V
Lock
indication
14750
Rev. A1, 22-Jul-98
7 (12)
Preliminary Information
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