TDA5630BT Datasheet, PDF (10/24 Pages) NXP Semiconductors – 9 V VHF and UHF mixer/oscillator for TV and VCR cable tuners

Philips Semiconductors
9 V VHF and UHF mixer/oscillator for TV
and VCR cable tuners
Product specification
TDA5630BT
signal
handbook, full pagewidth_{50 Ω source}
e
Vmeas _V
50 Ω
50 Ω
RMS
voltmeter
AC
HYBRID
BD
CIN1 IFOUT1
Vi _D.U.T.
CIN2 IFOUT2
TR
Vo
2x5
turns
2 ^V'meas
turns
N1/N2 = 5
spectrum
analyzer
50 Ω
MBH048
Loss of the hybrid: 1 dB.
V_i = V_meas − loss of the hybrid.
V_o = V’_meas + 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
G_v
=
20
log



-VV----^o-_{i }
Fig.7 Gain measurement in band C.
handbook, full pagewidth
NOISE
SOURCE
AC
HYBRID
50 Ω
BD
CIN1 IFOUT1
D.U.T.
CIN2 IFOUT2
TR
NOISE
METER
2x5
turns
2
turns
N1/N2 = 5
MBH049
Loss of the hybrid: 1 dB.
NF = NF_meas − loss of the hybrid.
1996 Jun 06
Fig.8 Noise figure measurement in band C.
10