TDA5630BT datasheet(7/24 Pages) PHILIPS

7 / 24 page

1996 Jun 06

Philips Semiconductors

Product speciﬁcation

9 V VHF and UHF mixer/oscillator for TV

and VCR cable tuners

TDA5630BT

Notes to the characteristics

1. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency.

2. The gain is defined as the transducer gain (measured in Fig.11) plus the voltage transformation ratio of L6 to L7

(10 : 2, 15.4 dB including transformer loss).

3. The input level causing 10 kHz frequency detuning at the LO output. fosc =fRF + 33.4 MHz.

4. All s-parameters are referred to a 50

Ω system.

5. Limits are related to the tank circuits used in Fig.11. Frequency bands may be adjusted by the choice of external

components.

6. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from

VP = 9 to 8.1 V or from VP = 9 to 9.9 V.

7. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from

Tamb =25to0 °C or from 25 to 50 °C. With no compensation, all capacitors are NP0.

8. Switch on drift with no compensation is defined as the change of oscillator frequency between 5 s and 15 min after

switch on. All capacitors are NP0.

9. Switch on drift with compensation is defined as the change of oscillator frequency between 5 s and 15 min after

switch on. C5 to C11 are N750; C1, C2 and C4 are N470.

10. The values have been corrected for hybrid and cable losses. The symmetrical output impedance of the hybrid is

100

Ω.

11. Measured with RF input voltage:

a) RF voltage = 120 dB

µV at fRF < 180 MHz.

b) RF voltage = 107.5 dB

µV at 180 MHz < fRF < 225 MHz.

c) RF voltage = 97 dB

µV at 225 MHz < fRF < 860 MHz.

LO output; RL = 100 Ω

output admittance

(GP +jCPω)

fosc = 80 MHz; see Fig.15; note 4

−

2.5

−

0.9

−

fosc = 900 MHz; see Fig.15; note 4

−

3.5

−

0.7

−

output voltage

RL = 100 Ω; Vt = 0.45 to 28 V

100

µV

SRF

spurious signal on LO output

with respect to LO output

signal

note 11

−−−10

dBc

SHD

LO signal harmonics with

respect to LO signal

−−−10

dBc

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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