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AA8334 Schematic ( PDF Datasheet ) - Agamem Microelectronic

Teilenummer AA8334
Beschreibung SURROUND PROCESSOR
Hersteller Agamem Microelectronic
Logo Agamem Microelectronic Logo 




Gesamt 9 Seiten
AA8334 Datasheet, Funktion
www.DataSheet4U.com
PRELIMINARY
Agamem Microelectronics Inc.
AA8334
SURROUND PROCESSOR
DESCRIPTION
AA8334 is an analog stereo enhancement processor. It creates a stereo image with depth
in three dimensions from ordinary left and right input channels. The patented QXpander
(*1) technology developed by QSound Labs, Inc., is faithfully implemented by
Agamem(*2).
Note 1: QXpander® is a stereo to 3D enhancement processor and is a trademark of QSound
Labs, Inc...
Note 2: Agamem has got licensing agreement of QXpander® from QSound Labs, Inc...
FEATURES
• Sound spreading can be easily adjusted using an external VR.
• Few external components required through use of internal filter circuit.
• QXpander on/off switching at TTL level.
APPLICATIONS
• Sound enhancement processor for LCD TV, home theater, PC, notebook and car stereo.
BLOCK DIAGRAM
Vcc
LIN
3DF1 3DF2 3DF3 3DF4
DET
LOUT
16 15 14 13 12 11 10
9
AA8334
+-
12345678
RIN VREF S/3D
FC
SPC
3DIN ROUT GND
©Copyright Agamem Microelectronics Inc.
1
www.agamem.com.tw 2008/3/28
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.






AA8334 Datasheet, Funktion
www.DataSheet4U.com
PRELIMINARY
Agamem Microelectronics Inc.
AA8334
SURROUND PROCESSOR
Note 6: Input current of BYP terminal (pin 3) (Vbyp=0v)
Note 7: The mute signal which switches off the power supply of a power amplifier that is
connected with AA8334 appears in the 10 terminal. When the power supply of AA8334 is
switched off, the pop noise occurs. We recommend muting the pop noise. The way is that
the power supply of AA8334 is switched off after the power supply of the follow power
amplifier is switched off.
Vcc=8V
Tvoff
Vcc waveform (Pin 16)
Vdet1
Vcc=0V
Vdeth
DET pin waveform (Pin 10)
Note 8: We recommend using the regulator for the power supply which occurs the ripple.
Note 9: When the signal is input in ZLIN, it is the ratio of pin 7 output voltage to pin 9
output voltage.
Note 10: When the signal is input in ZRIN, it is the ratio of pin 9 output voltage to pin 7
output voltage.
©Copyright Agamem Microelectronics Inc.
6
www.agamem.com.tw 2008/3/28
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

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