參數(shù)資料
型號(hào)： TDA5631M
廠商： NXP SEMICONDUCTORS
元件分類： 調(diào)諧器
英文描述： 9 V VHF, hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners
中文描述： 2-BAND, VIDEO TUNER, PDSO20
封裝： 4.40 MM, PLASTIC, SOT-266-1, SSOP-20
文件頁(yè)數(shù)： 11/28頁(yè)
文件大小： 252K
代理商： TDA5631M
1996 Mar 21
11
Philips Semiconductors
Product specification
9 V VHF, hyperband and UHF
mixer/oscillator for TV and VCR 3-band tuners
TDA5630;
TDA5631
Fig.6 Noise figure measurement in band A.
(1) NF = NF
meas
loss (input circuit) dB.
handbook, full pagewidth
MBH046
D.U.T.
INPUT
CIRCUIT
(see Fig. 5)
AIN
GND
IFOUT1
IFOUT2
BNC
RIM
NOISE
METER
NOISE
SOURCE
2 x 5
turns
2
turns
TR
N1/N2 = 5
Fig.7 Cross modulation measurement in band A.
V
meas
= V
o
15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
Wanted output signal at f
RFW
= 180 MHz: V
ow
=104 dB
μ
V (V
meas
= 88.6 dB
μ
V).
We measure the level of the unwanted signal V
ou
causing 0.3 % AM modulation in the wanted output signal; f
RFU
= 185.5 MHz.
V
ou
= V
meas
+ 15.4 dB.
f
osc
= 218.9 MHz.
Filter characteristics: f
c
= 38.9 MHz, f
3dBBW
= 1.2 MHz, f
30dBBW
= 2.64 MHz.
handbook, full pagewidth
unwanted
signal
source
e
w
50
50
wanted
signal
source
e
u
50
MBH047
D.U.T.
AIN
GND
IFOUT1
IFOUT2
18 dB
attenuator
50
o
N1/N2 = 5
2 x 5
turns
2
turns
V
FILTER
38.9 MHz
modulation
analyzer
HYBRID
A
C
B
D
V
RMS
voltmeter
AM = 30%
1 kHz
Vmeas
相關(guān)PDF資料
PDF描述
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參數(shù)描述
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