TDA7021 datasheet(7/13 Pages) PHILIPS

tên linh kiện	TDA7021

Giải thích chi tiết về linh kiện	FM radio circuit for MTS

PDF	13 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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7 / 13 page

May 1992

Philips Semiconductors

Product speciﬁcation

FM radio circuit for MTS

TDA7021T

1) The AF output can be decreased by disconnecting the 100 nF capacitor from pin 16.

Fig.5 Test circuit for mono operation.

AC CHARACTERISTICS (STEREO OPERATION)

VP = 3 V; Tamb = 25 °C; measured in Fig.8; frf = 96 MHz modulated with pilot ∆f = ± 6,75 kHz and AF signal

∆f= ±22,5 kHz; f

m = 1 kHz; EMF = 1 mV (e.m.f. at a source impedance of 75 Ω); r.m.s. noise voltage measured

unweighted (f = 300 Hz to 20 kHz); unless otherwise speciﬁed

PARAMETER

CONDITIONS

SYMBOL

MIN.

TYP.

MAX.

UNIT

Sensitivity (e.m.f.)

for (S

+N)/N = 26 dB

see Fig.8; pilot off

EMF

−

−µV

Selectivity

see Fig.9; no modulation

S+300

−

S−300

−

Signal-to-noise ratio

(S+N)/N

−

Channel separation

Vi = L-signal; fm = 1 kHz; pilot on:

at frf = 97 MHz

α−

−

at frf = 87,5 MHz and 108 MHz

α−

−

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