TDA9850 データシートの表示（PDF） - Philips Electronics

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TDA9850

I2C-bus controlled BTSC stereo/SAP decoder

Philips Electronics 

Philips Semiconductors

I2C-bus controlled BTSC stereo/SAP decoder

Preliminary specification

TDA9850

SYMBOL

PARAMETER

CONDITIONS

MIN.

αcs

fL, R

THDL,R

S/N

stereo channel separation

L/R

aligned with dual tone

14% modulation for each

channel; see Section

“Adjustment procedure”

L, R frequency response

total harmonic distortion

L, R

signal-to-noise ratio

fL = 300 Hz; fR = 3 kHz 25

fL = 300 Hz; fR = 8 kHz 20

fL = 300 Hz;

15

fR = 10 kHz

14% modulation;

fref = 300 Hz L or R

fi = 50 Hz to 10 kHz −3

fi = 12 kHz

−

modulation L or R

−

1% to 100%; fi = 1 kHz

mono mode;

50

CCIR 468-2 weighted;

quasi peak; 500 mV

output signal

Stereo decoder, oscillator (VCXO); note 3

fo

nominal VCXO output

with nominal ceramic

−

frequency (32fH)

resonator

fof

spread of free-running with nominal ceramic

500.0

frequency

resonator

∆fH

capture range frequency

(nominal pilot)

±190

SAP demodulator; note 4

SAPi(rms)

SAPon(rms)

SAPoff(rms)

SAPhys

SAPLEV

fres

THD

nominal SAP carrier

15 kHz frequency

−

input voltage level (RMS deviation of intercarrier

value)

threshold voltage SAP on

−

(RMS value)

threshold voltage SAP off

28

(RMS value)

hysteresis

−

SAP output voltage level

at OUTL, OUTR

mode selector in position −

SAP/SAP;

fmod = 300 Hz;

100% modulation

frequency response

14% modulation;

−3

50 Hz to 8 kHz;

fref = 300 Hz

total harmonic distortion fi = 1 kHz

−

TYP.

MAX.

35

−

30

−

25

−

−

−

−3

−

0.2

1.0

60

−

503.5

−

±265

−

507.0

−

150

−

−

68

−

−

2

−

500

−

−

−

0.5

2.0

UNIT

dB

dB

dB

dB

dB

%

dB

kHz

kHz

Hz

mV

mV

mV

dB

mV

dB

%

1995 Jun 19

12

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