SAA7710T データシートの表示（PDF） - Philips Electronics

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SAA7710T

Dolby* Pro Logic Surround; Incredible Sound

Philips Electronics 

Philips Semiconductors

Dolby* Pro Logic Surround;

Incredible Sound

Product specification

SAA7710T

FEATURES

• Two stereo I2S-bus digital input channels

• Three stereo I2S-bus digital output channels

• I2C-bus mode control

• Up to 45 ms on-chip delay-line (fs = 44.1 kHz)

• Optional clock divider for crystal oscillator

• Package: SO32L

• Operating supply voltage range: 4.5 to 5.5 V.

Functions

• 4-channel active surround, 20 Hz to 20 kHz

(maximum 1⁄2fs)

• Adaptive matrix

• 7 kHz low-pass filters

• Adjustable delay for surround channel

• Modified Dolby B noise reduction

• Noise sequencer

• Variable output matrix

• Sub woofer

• Centre mode control: on/off, normal, phantom, wide

• Output volume control

• Automatic balance and master level control with

DC-offset filter

• Hall/matrix surround sound functions

• Incredible sound functions

• 5-band parametric equalizer on main channels left,

centre, right (fs = 32 kHz)

• Tone control (bass/treble) on all four output channels

(fs = 44.1 kHz).

GENERAL DESCRIPTION

This data sheet describes the 104 ROM-code version of

the SAA7710T chip. The SAA7710T chip is a high quality

audio-performance digital add-on processor for digital

sound systems. It provides all the necessary features for

complete Dolby Pro Logic surround sound on chip.

In addition to the Dolby Pro Logic surround function, this

device also incorporates a 5-band parametric equalizer, a

tone control section and a volume control. Instead of Dolby

Pro Logic surround, the Hall/matrix surround and

Incredible sound functions can be used together with the

equalizer or tone control.

QUICK REFERENCE DATA

SYMBOL

VDD

∆VDD

Vi

IDD

ISS

Tamb

Tstg

PARAMETER

DC supply voltage

voltage difference between two VDDx pins

maximum input voltage

DC supply current

DC supply current

ambient operating temperature

storage temperature range

MIN.

−0.5

−

−0.5

−

−

−40

−65

MAX.

UNIT

+6.5

V

550

mV

VDD + 0.5 V

50

mA

50

mA

+85

°C

+150

°C

Remark Dolby*: Dolby’ and ‘Pro Logic’ are trademarks of Dolby Laboratories Licensing Corporation. They are available

only to licensees of Dolby Laboratories Licensing Corporation, San Francisco, CA94111, USA, from whom licensing and

application information must be obtained.

ORDERING INFORMATION

TYPE NUMBER

SAA7710T/N104

NAME

SO32

PACKAGE

DESCRIPTION

plastic small outline package; 32 leads; body width 7.5 mm

VERSION

SOT287-1

1998 Mar 13

2

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