TDA5634T Philips Semiconductors, TDA5634T Datasheet - Page 7

• Manufacturer Part Number: TDA5634T
• Description: 9 V UHF mixer/oscillator for TV and VCR tuners
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1996 Nov 7
handbook, full pagewidth
handbook, full pagewidth
9 V UHF mixer/oscillator for TV and VCR
tuners
Loss of the hybrid: 1 dB.
V
V
G
Loss of the hybrid: 1 dB.
NF = NF
i
o
v
= V
= V’
= 20 log
meas
meas
meas
e
+ 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
V
----- -
loss of the hybrid.
V
o
i
loss of the hybrid.
= 20 log
50
V
meas
signal
source
V
---------------- -
V
,
meas
meas
SOURCE
voltmeter
NOISE
V
RMS
+ 15.4 dB + loss of the hybrid.
50
50
50
Fig.4 Noise figure measurement in band C.
A
B
HYBRID
Fig.3 Gain measurement in band C.
A
HYBRID
B
C
D
C
D
CIN1
CIN2
V i
D.U.T.
7
CIN1
CIN2
IFOUT1
IFOUT2
D.U.T.
IFOUT1
IFOUT2
N1/N2 = 5
turns
2 x 5
V
o
2 x 5
turns
TR
TR
2
turns
N1/N2 = 5
2
turns
METER
NOISE
V' meas
MBH049
Product specification
spectrum
50
MBH048
TDA5634T
analyzer