TDA6509 datasheet(30/42 Pages) PHILIPS

部件名	TDA6509

功能描述	3-band mixer/oscillator and PLL for terrestrial tuners

PDF	42 Pages

Scroll/Zoom	100%

制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

标志

30 / 42 page

2005 Mar 25

Philips Semiconductors

Product speciﬁcation

3-band mixer/oscillator and PLL for

terrestrial tuners

TDA6508; TDA6508A;

TDA6509; TDA6509A

handbook, full pagewidth

Ω

unwanted

signal

source

wanted

signal

source

AM = 30%

MDB252

Ω

38.9 MHz

HIGH_RFIN1

HIGH_RFIN2

IFAMP_OUT1

HYBRID

18 dB

attenuator

Vo(meas)

RMS

voltmeter

modulation

analyzer

FILTER

D.U.T.

Fig.26 Cross-modulation measurement in the HIGH-band of the TDA6508A; TDA6509A.

Vo =Vo(meas) + 3.75 dB.

Wanted output signal at picture carrier frequency fRF(w); Vo(w) = 100 dBµV.

Unwanted output signal at sound sub-carrier frequency fRF(u); AM = 30%; AF = 2 kHz.

We measure the level of unwanted signal causing 0.3% AM modulation in the wanted signal

fRF(w) = 439.25 MHz (min.); 863.25 MHz (max.).

fRF(u) = 444.75 MHz (min.); 868.75 MHz (max.).

fosc = 478.15 MHz (min.); 902.15 MHz (max.).

TDA6509 数据表(PDF) 30 Page - NXP Semiconductors

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