
2004 Mar 22
30
Philips Semiconductors
Product specification
5 V mixer/oscillator and low noise PLL synthesizer
for hybrid terrestrial tuner (digital and analog)
TDA6650TT;
TDA6651TT
handbook, full pagewidth
Φ
osc
(dBc/Hz)
940
40
140
240
340
440
640
740
fRF (MHz)
840
540
120
115
110
105
FCE920
Fig.13 100 kHz phase noise typical performance in hybrid application (Figs 29 and 30).
handbook, full pagewidth
FCE747
V
LBIN
or
MBIN
IFOUTA
e
DUT
IFOUTB
VCCA
50
signal
source
V'meas
Vmeas
RMS
voltmeter
50
50
spectrum
analyzer
27
Vo
Vi
Fig.14 Gain (G
V
) measurement in low and mid band with asymmetrical IF output.
Z
i
>> 50
→
V
i
= 2
×
V
meas
= 70 dB
μ
V.
V
i
= V
meas
+ 6 dB = 70 dB
μ
V.
V
o
= V’
meas
+ 3.75 dB.
V
o
V
i
G
v
= 20 log
.
------
DVB-T and PAL.
IF = 38.9 MHz.