TUA6024-2 Infineon Technologies Corporation, TUA6024-2 Datasheet - Page 37

• Manufacturer Part Number: TUA6024-2
• Description: 2 Band Tv Tuner Mixer-oscillator-pll With Balanced If-amplifier
• Manufacturer: Infineon Technologies Corporation

Wireless Components
unwanted
signal
source
AM = 80 %
50
Source
50
Noise
wanted
signal
source
5.4.5
5.4.6
Hybrid
A
B
50
loss of balun = 1 dB
NF = NFmeas - loss of balun (dB)
C
D
Noise Figure Test Set-up in HIGH
Cross modulation Test Set-up in LOW/MID band
Voltmeter
Balun
Z
V’
wanted output signal at f
unwanted output signal at f
1:1
V
i
meas
>> 50
RMS
meas
V
i
= V
V
0
=> V
- 16 dB (transformer ratio N1:N2 and transformer loss)
HIGHIN
HIGHIN
LOW/
MIDIN
i
= 2 x V
Device
Device
under
under
50
Test
Test
IFOUT
IFOUT
IFOUT
meas
IFOUT
5 - 17
pix
, V
snd
o
, 80 % AM modulated with 1 kHz
= 100 dBµV
N1 : N2 = 10 : 2 turns
N1 : N2 = 10 : 2 turns
V
0
Transformer
Transformer
C
C
N1
N1
N2
N2
Votmeter
attenuator
RMS
V
18 dB
V'
meas
Specification, July 2001
38.9 MHz
modulation
Figure
Noise
Meter
analyser
TUA6024-2
50
Reference
NFUHF2
XVHF2