TDA9321 datasheet(21/44 Pages) PHILIPS

21 / 44 page

1998 Dec 16

Philips Semiconductors

Preliminary speciﬁcation

I2C-bus controlled TV input processor

TDA9321H

QSS AND AM SOUND OUTPUT (PIN QSS/AM)

General

output resistance

−−

250

Ω

DC output voltage

−

3.3

−

Ibias(int)

internal bias current of emitter

follower

0.7

1.0

−

Isink(max)

maximum AC and DC sink

current

−

0.7

−

Isource(max)

maximum AC and DC source

current

−

2.0

−

QSS output signal

Vo(rms)

output signal amplitude

(RMS value)

SC1 on; SC2 off

100

125

B−3dB

−3 dB bandwidth

7.5

−

MHz

∆V

r(SC)(rms)

residual IF sound carrier

(RMS value)

−

S/NW

weighted signal-to-noise ratio

(SC1/SC2)

ratio of PC/SC1 at

VIF input of 40 dB or

higher; note 16

black picture

53/48

58/55

−

white picture

52/47

55/53

−

6 kHz sine wave

(black-to-white

modulation)

44/42

48/46

−

250 kHz sine wave

(black-to-white

modulation)

44/25

48/30

−

SC subharmonics

(f = 2.75 MHz

±3 kHz)

45/44

51/50

−

SC subharmonics

(f = 2.87 MHz

±3 kHz)

46/45

52/51

−

AM output signal

Vo(rms)

output signal amplitude

(RMS value)

54% modulation

400

500

600

THD

total harmonic distortion

−

0.5

1.0

B−3dB

−3 dB bandwidth

100

125

−

kHz

S/NW

weighted signal-to-noise ratio

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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