TDA5632 Datasheet, PDF (10/20 Pages) NXP Semiconductors – 9 V VHF and UHF mixers/oscillators for TV and VCR cable tuners

Philips Semiconductors
9 V VHF and UHF mixers/oscillators for TV
and VCR cable tuners
Product specification
TDA5632; TDA5633
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
B
D
50 Ω
50 Ω
C IN
IF
out
D.U.T.
C IN
MBH330
27 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_out when the wanted output
signal is modulated with 0.3% AM.
Measurement at 887.5 MHz: f_wanted = 885.25 MHz (80 dBµV), f_unwanted = 889.75 MHz 30% modulated with 100 kHz, f_osc = 931 MHz.
Fig.8 Band C 1% cross modulation.
handbook, full pagewidth
1
0.5
2
0.2
+j
0
–j
0.2
0.5
5 MHz
1
2
100 MHz
0.2
5
10
5 10
∞
10
5
1996 Aug 16
0.5
1
2
MBH329
Fig.9 Output impedance (S22) of the IF amplifier (Z chart; Z_o = 50 Ω).
10