TDA5736 Datasheet, PDF (13/28 Pages) NXP Semiconductors – 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners

Philips Semiconductors
5 V VHF, hyperband and UHF mixers/oscillators
for TV and VCR 3-band tuners
Product specification
TDA5736; TDA5737
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_(hybrid) = 1 dB.
V_i = V_meas − loss_(hybrid).
V_o = V’_meas + 15.4 dB (transformer ratio N1/N2 and transformer loss).
Voltage gain for band B and C = 20 log (V_o/V_i).
Fig.9 Gain measurement in bands B and 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.
Fig.10 Noise figure measurement in bands B and C.
1997 Feb 24
13