tda5737 NXP Semiconductors, tda5737 Datasheet - Page 11

• Manufacturer Part Number: tda5737
• Description: 5 V Vhf, Hyperband And Uhf Mixers/oscillators For Tv And Vcr 3-band Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Feb 24
handbook, full pagewidth
handbook, full pagewidth
5 V VHF, hyperband and UHF mixers/oscillators
for TV and VCR 3-band tuners
(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 (diam. = 5.5 mm, wire diam. = 0.5 mm)
I1 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM);
33 dB/100 m; 50 ; 96 pF/m).
NF = NF
RF
meas
= 50 MHz:
BNC
loss (input circuit) dB.
L1
C1
SOURCE
NOISE
C2
(a)
I1
Fig.5 Input circuit for optimum noise figure in band A.
BNC
RIM-RIM
Fig.6 Noise figure measurement in band A.
(see Fig. 5)
CIRCUIT
INPUT
PCB
plug
RIM
(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
I2 = semi rigid cable (RIM): 30 cm long
I3 = semi rigid cable (RIM): 5 cm long (semi rigid cable (RIM);
33 dB/100 m; 50 ; 96 pF/m).
GND
AIN
11
D.U.T.
RF
IFOUT1
IFOUT2
BNC
= 150 MHz:
C3
N1/N2 = 5
turns
2 x 5
C4
MBH046
I2
TR
I3
(b)
2
turns
TDA5736; TDA5737
RIM-RIM
METER
NOISE
MBE286 - 1
PCB
plug
Product specification