TDA5736 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TDA5736

TDA5736; TDA5737 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners

Philips Electronics 

Philips Semiconductors

5 V VHF, hyperband and UHF mixers/oscillators

for TV and VCR 3-band tuners

Product specification

TDA5736; TDA5737

signal

handbook, full pagewidth50 Ω source

e

Vmeas V

50 Ω

50 Ω

RMS

voltmeter

AC

HYBRID

BD

CIN1 IFOUT1

Vi D.U.T.

CIN2 IFOUT2

TR

Vo

2x5

turns

2 V'meas

turns

N1/N2 = 5

spectrum

analyzer

50 Ω

MBH048

loss(hybrid) = 1 dB.

Vi = Vmeas − loss(hybrid).

Vo = V’meas + 15.4 dB (transformer ratio N1/N2 and transformer loss).

Voltage gain for band B and C = 20 log (Vo/Vi).

Fig.9 Gain measurement in bands B and C.

handbook, full pagewidth

NOISE

SOURCE

AC

HYBRID

50 Ω

BD

CIN1 IFOUT1

D.U.T.

CIN2 IFOUT2

TR

NOISE

METER

2x5

turns

2

turns

N1/N2 = 5

MBH049

Loss of the hybrid: 1 dB.

NF = NFmeas − loss of the hybrid.

Fig.10 Noise figure measurement in bands B and C.

1997 Feb 24

13

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