TUA6034-T INFINEON [Infineon Technologies AG], TUA6034-T Datasheet - Page 55

• Manufacturer Part Number: TUA6034-T
• Description: 3-Band Digital TV / Set-Top-Box Tuner IC
• Manufacturer: INFINEON [Infineon Technologies AG]

4.5
4.5.1
Figure 10
•
•
•
•
4.5.2
Figure 11
•
•
•
Specification
Z
V
V
G
V
V
G
i
i
0
i
0
v
v
>> 50
= V
= V
50
= V’
= V’
= 20 log(V
= 20 log(V
Voltmeter
50
meas
meas
Voltmeter
V
meas
meas
RMS
meas
Measurement Circuits
Gain (G
Gain (G
V
RMS
meas
+ 6dB = 80 dBµV
= 70 dBµV
Gain (G
Gain (G
=> V
+ 16 dB (transformer ratio N1:N2 and transformer loss)
+ 16 dB (transformer ratio N1:N2 and transformer loss
V
0
0
V
/ V
/ V
i
= 2 x V
V
V
i
i
)
) + 1 dB (1 dB = insertion loss of balun)
) measurement in LOW band
) measurement in MID and HIGH bands
50
50
V
V
) measurement in LOW band
) measurement in MID and HIGH bands
V
V
meas
i
i
Balun
= 80 dBµV
1:1
LOWIN
Device
under
Test
IFOUT
IFOUT
MIDIN
HIGHIN
MIDIN
HIGHIN
Device
55
under
Test
IFOUT
IFOUT
N1 : N2 = 10 : 2 turns
V
0
Transformer
N1 : N2 = 10 : 2 turns
V
C
0
N1
Transformer
N2
C
N1
TUA6034, TUA6036
N2
V'
meas
V 2.5, 2004-04-28
V'
meas
50
spectrum
analyser
Reference
50
spectrum
analyser