U4289BM Datasheet, PDF (8/10 Pages) List of Unclassifed Manufacturers – AM / FM - PLL

U4289BM
Recommendations for Applications
D C₃ = 100 nF should be very close to Pin 1 (V_DD) and
Pin 16 (GND 1)
D GND 2 (Pin 7 – analog ground) and GND 1 (Pin 16 –
digital ground) must be connected according to
figure 8
D 4 MHz crystal must be very close to Pin 14 and Pin 15
D Components of the charge pump (C₁/R₁ for AM and
C₂/R₂ for FM) should be very close to Pin 11 with
respect to Pin 10.
PCB-Layout
GND
C₁
C₂
16
15
14 13
12
11
10
9
C₄
C₃
VDD
1
2
3
4
5
6
7
8
95 10825
Figure 8.
8 (10)
TELEFUNKEN Semiconductors
Rev. A2, 14-May-97