TDA5732M datasheet(8/18 Pages) PHILIPS

8 / 18 page

1995 Mar 22

Philips Semiconductors

Preliminary speciﬁcation

Low power VHF, UHF mixer/oscillator

for TV and VCR 2-band tuners

TDA5732M

Notes

1. The RF signal is modulated with 50% AM at 15 kHz: The level of the RF signal is increased until there is a 23 dB

difference between the LO carrier and the sideband components.

2. The frequency shift is defined as a variation in oscillator frequency when the supply voltage varies from

VP = 5 to 4.75 V or from VP = 5 to 5.75 V.

3. The ripple susceptibility is measured for a 500 kHz ripple at the LO output with the set-up as illustrated in Fig.8. The

level of the ripple signal is increased until there is a 53.5 dB difference between the LO carrier and the sideband

components.

4. The frequency shift is defined as a variation in oscillator frequency when the supply voltage varies from

Tamb =25°Cto0°C or from Tamb =25°Cto50°C.

5. The switching on drift is defined as the variation in oscillator frequency between 5 seconds and 15 minutes after

switching on.

6. SRF: spurious signal on LO with respect to LO output signal;

a) RF voltage level=1V at fi = 55.25 to 225 MHz.

b) RF level = 2.5 dBm at fi = 225 to 361.25 MHz.

c) RF level =

−10 dBm at fi = 367.25 to 801.25 MHz.

Band C oscillator

frequency range

413

−

847

MHz

fshift

frequency shift

∆VP = 5%; note 2

−

200

kHz

∆V

P = 10%; note 2

−

200

−

kHz

ripple(p-p)

ripple susceptibility of the

supply voltage

(peak-to-peak value

VP = 4.75 to 5.25 V; fi = 413 MHz

−

203

−

VP = 4.75 to 5.25 V; fi = 847 MHz;

note 3

−

fdrift

frequency drift (worst case in

the frequency range)

∆T=25 °C with compensation;

note 4

−

1100

2500

kHz

5 s to 15 min after switching on;

note 5

−

300

1300

kHz

phase noise, carrier-to-noise

sideband (worst case in the

frequency range)

±50 kHz; frequency offset;

B=3kHz

−

dBc

LO output

output admittance (GP//CP)GP; fi = 101 MHz; see Fig.11

−

2.4

−

GP; fi = 847 MHz; see Fig.11

−

3.1

−

CP; fi = 101 to 847 MHz; see Fig.11 −

0.5

−

output voltage

RL =50 Ω; VP = 4.5 to 5.5 V;

Vt = 0 to 28 V

100

µV

SRF

spurious signal on LO output

with respect to LO output

signal

RL =50 Ω; note 6

−−15

−10

HLO

LO signal harmonics w.r.t. LO

signal

RL =50 Ω−

−10.5 −9.5

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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