TUA6045 INFINEON [Infineon Technologies AG], TUA6045 Datasheet - Page 62

• Manufacturer Part Number: TUA6045
• Description: Low Power 3-Band Digital TV / Portable Tuner IC
• Manufacturer: INFINEON [Infineon Technologies AG]

5.6.7
Figure 15
•
•
•
5.6.8
Figure 16
Data Sheet
signal source
AM = 80%, 1 kHz
unwanted
V’
wanted output signal at f
unwanted output signal at f
meas
50
50
wanted
signal
source
= V
Cross modulation measurement in MID and HIGH bands
Ripple susceptibility measurement
0
Cross modulation measurement in MID and HIGH bands
Ripple susceptibility measurement
- 17 dB (transformer ratio N1:N2 and transformer loss)
A
Hybrid
B
50
C
D
DC Supply
Ripple
Balun
1:1
pix
50
, V
1u
snd
o
Stabilizer
= 100 dBµV
MIDIN
HIGHIN
MIDIN
HIGHIN
2* 22uF
Device
under
Test
SAWOUT
SAWOUT
5k
62
240
V
o
N1 : N2 = 10 : 2 turns
Transformer
1u
C
N1
IC supply
Voltmeter
N2
V'
Revision 3.1, 2006-12-19
RMS
meas
V
IF filter
TUA 6045-2
50
TAIFUN 3
Reference
modulation
analyser
50