TDA9852 datasheet(18/40 Pages) PHILIPS

18 / 40 page

1997 Mar 11

Philips Semiconductors

Preliminary speciﬁcation

I2C-bus controlled BTSC stereo/SAP

decoder and audio processor

TDA9852

Audio control part; input pins VIL and VIR to pins OUTX and OUTS

volume input impedance

8.0

10.0

12.0

Ω

output impedance

−

120

Ω

output load resistance

−−

Ω

output load capacitance

−

2.5

Vi(rms)

maximum input voltage

(RMS value)

THD < 0.5%

2.0

2.15

−

Vno

noise output voltage

CCIR 468-2 weighted;

quasi peak

Gv =16dB

−

110

220

µV

Gv =0dB

−

µV

mute position

−

−µV

total continuous control range

maximum boost

−

maximum attenuation

−

Gstep

step resolution

−

step error between adjoining

step

−−

0.5

∆Ga

attenuator set error

Gv = +16 to −50 dB

−−

2dB

Gv = −51 to −71 dB

−−

3dB

∆G

gain tracking error

Gv = +16 to −50 dB

−−

2dB

αm

mute attenuation

−−

VDC OFF

DC step offset between any

adjacent step

Gv = +16 to 0 dB

−

0.2

10.0

Gv =0to −71 dB

−−

5mV

DC step offset between any

step to mute

Gv = +16 to +1 dB

−

215

Gv =0to −71 dB

−

110

Loudness control part

maximum loudness boost

loudness on; referred to

loudness off; boost is

determined by external

components; see Fig.6

fi =40Hz

−

fi = 10 kHz

−

4.5

−

loudness control range

−12

−

+16

Muting at power supply drop for OUTR and OUTS

VCC-DROP

supply drop for mute active

−

VCAP − 0.7 −

Power-on reset; note 9

VRESET(STA)

start of reset voltage

increasing supply voltage

−−

2.5

decreasing supply voltage

4.2

5.8

VRESET(END) end of reset voltage

increasing supply voltage

5.2

6.8

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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