tda5737a NXP Semiconductors, tda5737a Datasheet - Page 12

• Manufacturer Part Number: tda5737a
• Description: Tda5737a 5 V Vhf, Hyperband And Uhf Mixers/oscillators For Tv And Vcr 3-band Tuners
• Manufacturer: NXP Semiconductors

andbook, full pagewidth
Philips Semiconductors
2000 Dec 19
handbook, full pagewidth
5 V VHF, hyperband and UHF
mixers/oscillators for TV and VCR 3-band tuners
loss
V
V
Voltage gain for band B and C = 20 log (V
Loss of the hybrid: 1 dB.
NF = NF
i
o
= V
= V’
(hybrid)
meas
meas
meas
= 1 dB.
e
+ 15.4 dB (transformer ratio N1/N2 and transformer loss).
loss
loss of the hybrid.
(hybrid)
50
V
.
meas
signal
source
SOURCE
NOISE
voltmeter
V
RMS
50
50
Fig.9 Noise figure measurement in bands B and C.
o
50
/V
i
Fig.8 Gain measurement in bands B and C.
).
A
B
HYBRID
A
B
C
D
HYBRID
C
D
CIN1
CIN2
V i
D.U.T.
12
CIN1
CIN2
IFOUT1
IFOUT2
D.U.T.
IFOUT1
IFOUT2
N1/N2 = 5
2 x 5
turns
V
o
TR
turns
2 x 5
2
turns
TR
N1/N2 = 5
2
turns
METER
NOISE
MBH049
V' meas
Preliminary specification
spectrum
50
MBH048
TDA5737A
analyzer