TDA5630T PHILIPS [NXP Semiconductors], TDA5630T Datasheet - Page 11

• Manufacturer Part Number: TDA5630T
• Description: 9 V VHF, hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1996 Mar 21
handbook, full pagewidth
handbook, full pagewidth
9 V VHF, hyperband and UHF
mixer/oscillator for TV and VCR 3-band tuners
(1) NF = NF
V
Wanted output signal at f
We measure the level of the unwanted signal V
V
f
Filter characteristics: f
osc
meas
ou
= 218.9 MHz.
= V
= V
meas
o
e
e
w
u
+ 15.4 dB.
meas
15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
50
50
AM = 30%
loss (input circuit) dB.
unwanted
wanted
source
source
signal
1 kHz
signal
c
= 38.9 MHz, f
SOURCE
RFW
NOISE
= 180 MHz: V
A
B
HYBRID
3dBBW
C
D
Fig.7 Cross modulation measurement in band A.
ow
= 1.2 MHz, f
BNC
Fig.6 Noise figure measurement in band A.
=104 dB V (V
(see Fig. 5)
ou
CIRCUIT
50
INPUT
causing 0.3 % AM modulation in the wanted output signal; f
RIM
30dBBW
AIN
GND
meas
D.U.T.
= 2.64 MHz.
= 88.6 dB V).
IFOUT1
IFOUT2
GND
AIN
11
D.U.T.
IFOUT1
IFOUT2
V
o
turns
2 x 5
N1/N2 = 5
N1/N2 = 5
2
turns
turns
2 x 5
MBH046
voltmeter
RMS
TR
V
attenuator
18 dB
V meas
2
turns
RFU
= 185.5 MHz.
METER
NOISE
38.9 MHz
FILTER
Product specification
TDA5630;
modulation
analyzer
50
TDA5631
MBH047