TDA6509 datasheet(26/42 Pages) PHILIPS

26 / 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

MDB260

MID_RFIN2

Ω

MID_RFIN1

IFAMP_OUT1

Vi(meas)

RMS

voltmeter

spectrum

analyzer

D.U.T.

Vo(meas)

signal

source

Ω

HYBRID

Fig.18 Gain measurement in the MID-band of the TDA6508A; TDA6509A.

Zi >> 50 Ω symmetrical input.

Hybrid loss = 1 dB.

Vi =Vi(meas) − loss + 6 + 3 = 80 dBµV.

Vo =Vo(meas) + 3.75 dB.

Gv = 20 log

PAL fIF = 36.15 MHz.

------

handbook, full pagewidth

unwanted

signal

source

Ω

wanted

signal

source

Ω

MDB253

D.U.T.

MID_RFIN1

MID_RFIN2

IFAMP_OUT1

IFAMP_OUT2

18 dB

attenuator

Ω

N1/N2 = 5

2 x 5

turns

FILTER

38.9 MHz

modulation

analyzer

HYBRID

RMS

voltmeter

Vo(meas)

AM = 30%

Fig.19 Cross-modulation measurement in the MID-band of the TDA6508; TDA6509.

Vo =Vo(meas) + 15 dB (transformer ratio N1/N2 and transformer loss).

Wanted output signal at picture carrier frequency fRF(w); Vo(w) = 110 dBµV.

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

Measuring the level of unwanted signal causing 0.3% AM in the wanted signal.

fRF(w) = 154.25 MHz (min.); 447.25 MHz (max.).

fRF(u) = 159.75 MHz (min.); 452.75 MHz (max.).

fosc = 193.15 MHz (min.); 486.15 MHz (max.).

TDA6509 数据表(PDF) 26 Page - NXP Semiconductors

TDA6509 数据表(HTML) 26 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

数据表下载

链接网址

TDA6509 数据表(PDF) 26 Page - NXP Semiconductors

TDA6509 数据表(HTML) 26 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

数据表 下载

链接网址

数据表下载