TEA6824 Просмотр технического описания (PDF) - Philips Electronics

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производитель

TEA6824

Front-end and PLL synthesizers for car radios

Philips Electronics 

Philips Semiconductors

In Car Entertainment (ICE) car radio

Preliminary specification

TEA6824T

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP.

FM demodulator

V43-4(rms)

V37-35(rms)

MPX output voltage between

pins 43 and 4 (RMS value)

start of limiting voltage between

pins 37 and 35 (RMS value)

αAF = −3 dB

160 200

−

25

V37-35(rms)

input voltage for signal plus

noise-to-noise ratio (RMS value)

see Fig.6;

S------N+-----N--- = 26 dB

−

30

S------N+-----N--- = 46 dB

−

70

∆V43DC

residual DC-offset voltage pin 43 ∆Ldemod = typical value;

10 µV < V37-35 < 80 µV −

100

80 µV < V37-35 < 800 mV −

10

V43FM/V43AM

AM suppression pin 43

∆f = 22.5 kHz;

fmodAM = 1 kHz;

mAM = 30%;

V37-35 = 3 to 300 mV

50 60

∆V43-44AFCdis

demodulator frequency control

/∆V43-44AFCactive voltage (AFC) efficiency between

pins 43 and 44 at 100 kHz detune

28 32

from exact tuning

Ro43

B43

S------N+-----N---

output resistance pin 43

AF bandwidth pin 43

signal plus noise-to-noise ratio

−

−

200 −

66 75

THD

total harmonic distortion at pin 43 detuning ≤50 kHz;

−

0.1

∆f = 75 kHz; fmod = 1 kHz

without de-emphasis;

Ldemod = typical value;

V37-35 = 300 µV to 800 mV

MAX. UNIT

240 mV

40 µV

45 µV

100 µV

1000 mV

30 mV

−

dB

−

dB

1.5 kΩ

−

kHz

−

dB

0.35 %

1997 May 05

9

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