TDA6500TT Datasheet, PDF (22/40 Pages) NXP Semiconductors – 5 V mixer/oscillator and synthesizer for PAL and NTSC standards

Philips Semiconductors
5 V mixer/oscillator and synthesizer
for PAL and NTSC standards
Product specification
TDA6500TT; TDA6501TT
handbook, full pagewidth _{50 Ω}
signal
source
A
C
e
Vmeas V
50
Ω
Vi ^HYBRID
50
RMS
Ω
voltmeter
B
D
MHBIN1 IFOUT
D.U.T.
MHBIN2
C
Vo
L
V'meas
spectrum
analyzer
50 Ω
FCE216
Loss in hybrid = 1 dB.
V_i = V_meas − Ioss = 70 dBµV.
V_o = V’_meas × --------------5---0--------------- = V’_meas + attenuation.
50² + L²Ï‰²
G_v = 20 log ^V-V----o-_i .
PAL:
IF = 38.9 MHz.
L = 680 nH.
C = 25.9 pF.
attenuation = 10.2 dB.
Fig.11 Gain (G_V) measurement in mid and high bands.
handbook, full pagewidth
NOISE
SOURCE
50
Ω
A
C
HYBRID
B
D
MHBIN1 IFOUT
D.U.T.
MHBIN2
L
NOISE
FIGURE
METER
C
FCE217
Loss in hybrid = 1 dB.
NF = NF_meas − Ioss.
2003 Jun 05
PAL:
IF = 38.9 MHz.
L = 680 nH.
C = 25.9 pF.
Fig.12 Noise figure (NF) measurement in mid and high bands.
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