U6239B Datasheet, PDF (12/15 Pages) TEMIC Semiconductors – 2.9 GHz PLL for SAT TV Tuner with UNi-Bus

U6239B
Input/ Output Interface Circuits
Vref
Vs
1.5k
1.5k
RF1
RF2
Port
Vref
Figure 6. RF input
9611853
9611856
Figure 8. Ports P4, P5, P6, P7
2k
60
PD
OS
(O/P Disable)
VD
45k
Figure 7. Loop amplifier
9611854
Vs
P3
AMS
125k
375k
AMS
AS / P3
12k ^ENABLE
Vref
9611857
Figure 9. Address select/ Enable input/ Port output P3
12 (15)
TELEFUNKEN Semiconductors
Rev. A3, 28-May-97