tda6403a NXP Semiconductors, tda6403a Datasheet - Page 22

• Manufacturer Part Number: tda6403a
• Description: 5 V Mixers/oscillators And Synthesizers For Cable Tv And Vcr 2-band Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
2000 Jan 24
handbook, full pagewidth
handbook, full pagewidth
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
Z
V
V
G
(a) For f
mixer A frequency response measured = 57 MHz, loss = 0 dB
image suppression = 16 dB
C1 = 9 pF
C2 = 15 pF
L1 = 7 turns (
l1 = semi rigid cable (RIM): 5 cm long
(semi rigid cable (RIM); 33 dB/100 m; 50 ; 96 pF/m).
i
i
o
v
>> 50
= V
= V’
= 20 log
meas
meas
RF
+ 6 dB = 80 dB V.
= 50 MHz:
V
----- -
V
BNC
o
i
V
50
------------------ -
i
5.5 mm, wire
= 2
50
+
L1
22
C1
V
meas
e
= 80 dB V.
= 0.5 mm)
C2
50
(a)
Fig.13 Input circuit for optimum noise figure in VHF band.
I1
V meas
signal
source
RIM-RIM
voltmeter
Fig.12 Gain measurement in VHF band.
V
RMS
PCB
plug
50
V i
VHFIN
22
D.U.T.
(b) For f
mixer A frequency response measured = 150.3 MHz, loss = 1.3 dB
image suppression = 13 dB
C3 = 5 pF
C4 = 25 pF
l2 = semi rigid cable (RIM): 30 cm long
l3 = semi rigid cable (RIM): 5 cm long
(semi rigid cable (RIM); 33 dB/100 m; 50
BNC
IFOUT
RF
C3
= 150 MHz:
V o
C4
22
V' meas
I2
TDA6402; TDA6402A;
I3
TDA6403; TDA6403A
(b)
RIM-RIM
spectrum
analyzer
50
MGE698
MBE286 - 1
96 pF/m).
PCB
plug
Product specification