TDA6509 datasheet(28/42 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

28 / 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

MDB258

HIGH_RFIN2

Ω

HIGH_RFIN1

IFAMP_OUT1

Vi(meas)

RMS

voltmeter

spectrum

analyzer

D.U.T.

Vo(meas)

signal

source

Ω

HYBRID

Fig.22 Gain measurement in the HIGH-band of the TDA6508A; TDA6509A.

Hybrid loss = 1 dB.

Vi =Vi(meas) − loss = 70 dBµV.

Vo =Vo(meas) + 3.75 dB.

Gv = 20 log

PAL fIF = 36.15 MHz.

------

mdb255

D.U.T.

IFAMP_OUT1

IFAMP_OUT2

NOISE

METER

NOISE

SOURCE

2 x 5

turns

N1/N2 = 5

HYBRID

Ω

HIGH_RFIN1

HIGH_RFIN2

Fig.23 Noise figure measurement in the HIGH-band of the TDA6508; TDA6509.

Hybrid loss = 1 dB.

NF = NFmeas − hybrid loss.

TDA6509 数据表(PDF) 28 Page - NXP Semiconductors

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