TDA5732M Datasheet, PDF (10/18 Pages) NXP Semiconductors – Low power VHF, UHF mixer/oscillator for TV and VCR 2-band tuners

Philips Semiconductors
Low power VHF, UHF mixer/oscillator
for TV and VCR 2-band tuners
Preliminary specification
TDA5732M
handbook, full pagewidth
Vmeas V
wanted
input signal
50 Ω source
ew
unwanted
input signal
50 Ω source
eu
A
C
HYBRID
B
D
wanted
input
signal
50 Ω
50 Ω
RMS
voltmeter
A IN
IF
out
D.U.T.
A IN
MBE288
25 Ω
Vout _{50 Ω}
modulation analyzer
(unwanted AM on
the output wanted
frequency)
Wanted input signal = 80 dBµV; Zi >> 50 Ω ≥ wanted input signal = 2V_meas; unwanted input signal modulated with 30% AM;
V_oA(IF) = unwanted output signalV_o when the output wanted signal is modulated with 0.3% AM.
Fig.5 Band A 1% cross modulation.
handbook, full pagewidth
wanted
input signal
50 Ω source
ew
unwanted
input signal
50 Ω source
eu
A
C
HYBRID
B
D
wanted
input
V
signal
50 Ω
RMS
voltmeter
A
C
HYBRID
C IN
IF
out
D.U.T.
B
D
50 Ω
50 Ω
C IN
MBE287
25 Ω
Vout _{50 Ω}
modulation analyzer
(unwanted AM on
the output wanted
frequency)
Wanted input signal = 70 dBµV; unwanted input signal modulated with 30% AM; V_oA(IF) = unwanted output signal V_o when the
output wanted signal is modulated with 0.3% AM.
Fig.6 Band C 1% cross modulation.
1995 Mar 22
10