TEA5768HL Просмотр технического описания (PDF) - Philips Electronics

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производитель

TEA5768HL

Low-power FM stereo radio for handheld applications

Philips Electronics 

Philips Semiconductors

Low-power FM stereo radio for

handheld applications

Product specification

TEA5768HL

SYMBOL

PARAMETER

CONDITIONS

MIN.

(S+N)/N

THD

αpilot

∆fpilot

∆∆----ff--pp---ii-ll-oo--tt-12-

maximum signal plus

noise-to-noise ratio

total harmonic distortion

VRF = 1 mV; L = R;

54

∆f = 22.5 kHz; fmod = 1 kHz;

de-emphasis = 75 µs;

BAF = 300 Hz to 15 kHz

VRF = 1 mV; L = R; ∆f = 75 kHz; −

fmod = 1 kHz;

de-emphasis = 75 µs

pilot suppression measured related to ∆f = 75 kHz;

40

at pins VAFL and VAFR

fmod = 1 kHz;

de-emphasis = 75 µs

stereo pilot frequency

deviation

VRF = 1 mV; read mode;

data byte 3

bit 7 = 1

−

bit 7 = 0

1

pilot switch hysteresis

VRF = 1 mV

2

HIGH CUT CONTROL

TCde-em

de-emphasis time constant VRF = 1 mV

data byte 5 bit 6 = 0

38

data byte 5 bit 6 = 1

57

VRF = 1 µV

data byte 5 bit 6 = 0

114

data byte 5 bit 6 = 1

171

MONO TO STEREO BLEND CONTROL

αcs(stereo)

stereo channel separation

VRF = 45 µV; R = L = 0 or R = 0 4

and L = 1 including 9 % pilot;

∆f = 75 kHz; fmod = 1 kHz;

data byte 3 bit 3 = 0;

data byte 4 bit 1 = 1

MONO TO STEREO SWITCHED

αcs(stereo)

αcs(stereo)

stereo channel separation

switching from mono to

stereo with increasing RF

input level

stereo channel separation

switching from stereo to

mono with decreasing RF

input level

VRF = 1 mV; R = L = 0 or R = 0 24

and L = 1 including 9 % pilot;

∆f = 75 kHz; fmod = 1 kHz;

data byte 3 bit 3 = 0;

data byte 4 bit 1 = 0

VRF = 20 µV; R = L = 0 or R = 0 −

and L = 1 including 9 % pilot;

∆f = 75 kHz; fmod = 1 kHz;

data byte 3 bit 3 = 0;

data byte 4 bit 1 = 0

TYP. MAX.

60

−

0.4 1

50

−

3.6 5.8

3

−

−

−

50

62

75

93

150 186

225 279

10

16

−

−

−

1

UNIT

dB

%

dB

kHz

kHz

dB

µs

µs

µs

µs

dB

dB

dB

2004 Sep 13

21

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