tda5737a NXP Semiconductors, tda5737a Datasheet - Page 9

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

Philips Semiconductors
3. The gain is defined as the transducer gain (measured in Fig.16) plus the voltage transformation ratio of L7 to L8
4. The input level causing 10 kHz frequency detuning at the LO output. f
5. Limits are related to the tank circuits used in Fig.16. Frequency bands may be adjusted by the choice of external
6. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from
7. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from
8. Switch-on drift is defined as the change in oscillator frequency between 5 s and 15 minutes after switch on.
9. With thermal compensation, the capacitors of the tank circuits have the following temperature coefficients:
10. SRF: spurious signal on LO with respect to LO output signal:
2000 Dec 19
handbook, full pagewidth
5 V VHF, hyperband and UHF
mixers/oscillators for TV and VCR 3-band tuners
Z
V
V
G
(10 : 2 and 15.4 dB including transformer loss).
components.
V
T
a) In band A: C1, C6 and C8 are N750
b) In band B: C4, C11, C12, C13 and C36 are N750
c) In band C: C5, C7, C9 and C10 are N750; C2 is N220 and C3 is NP0.
a) RF level = 120 dB V at f
b) RF level = 107.5 dB V at f
c) RF level = 97 dB V at f
i(AIN)
i
o
v
amb
= V
P
= V’
= 20 log (V
= 5 to 4.75 V and from V
meas
>> 50 ; V
meas
= 25 to 0 C and from T
+ 6 dB.
+ 15.4 dB (transformer ratio N1/N2 = 5 and transformer loss).
o
/V
i
i
).
= 2
e
V
meas
50
.
V
meas
signal
source
RF
P
RF
voltmeter
amb
V
= 5 to 5.25 V.
= 225 to 860 MHz.
RF
RMS
< 180 MHz
= 25 to 50 C.
= 180 to 225 MHz
50
Fig.3 Band A gain measurement.
V
i
GND
AIN
D.U.T.
9
out
out
IF
IF
V
o
2 x 5
turns
osc
TR
= f
N1/N2 = 5
RF
2
turns
+ 33.4 MHz.
V'
meas
50
spectrum
MGD264
analyzer
Preliminary specification
TDA5737A