tda6403a NXP Semiconductors, tda6403a Datasheet - Page 25

• Manufacturer Part Number: tda6403a
• Description: 5 V Mixers/oscillators And Synthesizers For Cable Tv And Vcr 2-band Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 Jan 24
handbook, full pagewidth
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
V
Wanted output signal at f
Measuring the level of the unwanted output signal V
f
Filter characteristics: f
OSC
o
e w
e u
= V
= 413 (847) MHz.
meas
50
50
50
------------------ -
50
+
AM = 50%
unwanted
22
wanted
source
source
1 kHz
signal
signal
C
= 45.75 MHz, f
RFW
= 367.25 (801.25) MHz; V
B
A
HYBRID
C
D
50
Fig.18 Cross modulation measurement in UHF band.
3 dB(BW)
= 1.4 MHz, f
50
o(u)
HYBRID
o(w)
causing 0.5% AM modulation in the wanted output signal; f
A
B
= 100 dB V.
30 dB(BW)
C
D
= 3.1 MHz.
UHFIN
UHFIN
25
D.U.T.
IFOUT
V o
22
voltmeter
RMS
V
TDA6402; TDA6402A;
TDA6403; TDA6403A
attenuator
V meas
18 dB
RFU
= 371.25 (805.75) MHz.
45.75 MHz
FILTER
Product specification
modulation
analyzer
50
MGE703