tda5637bm NXP Semiconductors, tda5637bm Datasheet - Page 11

• Manufacturer Part Number: tda5637bm
• Description: 9 V Vhf Hyperband And Uhf Mixer/oscillator For Tv And Vcr 3-band Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Dec 02
handbook, full pagewidth
handbook, full pagewidth
9 V VHF hyperband and UHF mixer/oscillator for
TV and VCR 3-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 (diameter = 5.5 mm, wire diameter = 0.5 mm)
l1 = semi rigid cable (RIM): 5 cm long
(semi rigid cable (RIM); 33 dB/100 m; 50
i
i
o
v
(AIN)
= V
= V’
= 20 log
meas
meas
RF
+ 6 dB.
= 50 MHz:
50
V
----- -
BNC
V
o
i
50
------------------ -
L1
50
+
C1
V
e
27
i
= 2
+ 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
50
V
meas
V
meas
signal
source
C2
.
(a)
I1
voltmeter
Fig.5 Input circuit for optimum noise figure in band A.
V
RMS
96 pF/m).
RIM-RIM
50
Fig.4 Band A gain measurement.
PCB
plug
V
i
GND
RFA
D.U.T.
11
(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
out
out
IF
IF
BNC
RF
= 150 MHz:
V
C3
o
2 x 5
turns
TR
C4
N1/N2 = 5
I2
2
turns
TDA5636B; TDA5637B
V'
I3
27
(b)
meas
RIM-RIM
96 pF/m).
50
spectrum
MGC507
analyzer
MBE286 - 1
PCB
plug
Product specification