TUA6037 INFINEON [Infineon Technologies AG], TUA6037 Datasheet - Page 62

• Manufacturer Part Number: TUA6037
• Description: 3 Band Digital / Hybrid Tuner IC with integrated IF AGC amplifier
• Manufacturer: INFINEON [Infineon Technologies AG]

5.5.7
Figure 20
•
•
•
5.5.8
Figure 21
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 (RSC) 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
TUA 6039-2, TUA 6039, TUA 6037
240
V
o
N1 : N2 = 10 : 2 turns
Transformer
1u
C
N1
IC supply
Voltmeter
N2
V'
Revision 2.6, 2007-08-20
RMS
meas
V
IF filter
50
Reference
modulation
analyser
50