TUA6037 INFINEON [Infineon Technologies AG], TUA6037 Datasheet - Page 61

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

5.5.5
Figure 18
5.5.6
Figure 19
•
•
•
Data Sheet
V’
wanted output signal at f
unwanted output signal at f
AM = 80%, 1 kHz
signal source
unwanted
meas
Source
50
50
= V
Noise
wanted
signal
source
Noise figure (NF) measurement in MID and HIGH bands
Cross modulation measurement in LOW band
0
Noise figure (NF) measurement in MID and HIGH bands
Cross modulation measurement in LOW band
- 17 dB (transformer ratio N1:N2 and transformer loss)
A
Hybrid
B
50
loss of balun = 1 dB
NF = NFmeas - loss of balun (dB)
C
D
Balun
1:1
pix
, V
snd
LOWIN
o
Device
= 100 dBµV
under
MIDIN
HIGHIN
MIDIN
HIGHIN
Test
SAWOUT
SAWOUT
Device
under
Test
SAWOUT
SAWOUT
61
V
o
TUA 6039-2, TUA 6039, TUA 6037
N1 : N2 = 10 : 2 turns
N1 : N2 = 10 : 2 turns
Transformer
C
N1
Transformer
C
N1
Voltmeter
N2
V'
RMS
meas
N2
Revision 2.6, 2007-08-20
V
IF filter
50
Figure
Noise
Meter
Reference
modulation
analyser
50