1996 Dec 02

10

Philips Semiconductors

Product specification

9 V VHF hyperband and UHF mixer/oscillator

for TV and VCR 3-band tuners

TDA5636B; TDA5637B

Notes

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.17) plus the voltage transformation ratio of L6 to L7

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

4. Limits are related to the tank circuits used in Fig.17. Frequency bands may be adjusted by the choice of external

components.

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

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

7. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on.

8. SRF: spurious signal on LO with respect to LO output signal:

RF level = 120 dB

RF level = 107.5 dB

RF level = 97 dB

Band C oscillator

oscillator frequency

note 4

470

−

900

MHz

frequency shift

−−

500

kHz

frequency drift

∆T=25 °C with compensation; note 6

−−

1400

kHz

5 s to 15 min. after switch on; note 7

−−

400

kHz

LO output

output reflection coefficient

see Fig.16

−−−

output admittance

see Fig.16

−

400

−Ω

see Fig.16

−

1.0

−

pF

output voltage

83

91

100

dB

µV

SRF

spurious signal on LO output

with respect to LO output

signal

−−−10

dBc

HLO

LO signal harmonics with

respect to LO signal

−−−10

dBc

IF amplifier characteristics

output reflection coefficient

magnitude; through 1 nF; see Fig.15

−−21.3 −

dB

phase; through 1 nF; see Fig.15

−

49

−

deg

output impedance

−

110

−Ω

−

65

−

nH

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT