TDA9847 データシートの表示（PDF） - Philips Electronics

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TDA9847

TV and VTR stereo/dual sound processor with digital identification

Philips Electronics 

Philips Semiconductors

TV and VTR stereo/dual sound processor

with digital identification

Preliminary specification

TDA9847

SYMBOL

PARAMETER

CONDITIONS

αcr

αmute

∆VDC

PSRR

IO(DC)

crosstalk attenuation for

dual

stereo

mute attenuation

change of DC level output

voltage between any two

modes of operation

power supply ripple rejection

DC output current

notes 1 and 3

Zs ≤ 1 kΩ

Zs ≤ 1 kΩ

Zs ≤ 1 kΩ; note 1

after switching

fr = 70 Hz; see Fig.9

10 MHz crystal oscillator (pin 23)

fr

fosc

Rxtal

Rn

C0

C1

Pxtal

Vosc(p-p)

series resonant frequency of

crystal (fundamental mode)

operating oscillator frequency

(running in parallel resonance

mode)

equivalent crystal series

resistance

crystal series resistance of

unwanted mode

crystal parallel capacitance

crystal motional capacitance

level of drive in operation

oscillator operating voltage

(peak-to-peak value)

CL = 20 pF

over operating

temperature range

including ageing and

influence of drive

circuit

even at extremely low

drive level (<1 pW)

over operating

temperature range

with C0 = 6 pF

with Rr ≤ 100 Ω

Pilot processing

Vi pil(rms)

Ri pil

Ci pil

m

pilot input voltage level at pin 7

(RMS value)

pilot input resistance

pilot input capacitance

modulation depth

unmodulated

AM

MIN.

70

40

76

−

50

−

9. 995

9. 988

−

2 × Rr

−

−

−

500

5

500

−

25

TYP.

75

45

80

−

65

−

10 .008

10 .008

60

−

6

25

−

550

−

1 000

−

50

MAX.

−

−

−

±10

−

±20

10. 021

10. 028

200

−

10

50

5

600

100

−

3

75

UNIT

dB

dB

dB

mV

dB

µA

MHz

MHz

Ω

Ω

pF

fF

µW

mV

mV

kΩ

pF

%

1995 May 23

11

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