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Agamem Microelectronics Inc. PRELIMINARY
DESCRIPTION
AA8334
SURROUND PROCESSOR
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(R) is a stereo to 3D enhancement processor and is a trademark of QSound Labs, Inc... Note 2: Agamem has got licensing agreement of QXpander(R) 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 16 LIN 15 3DF1 14 3DF2 13 3DF3 12 3DF4 11 DET 10 LOUT 9
+ -
AA8334
1 RIN
2 VREF
3 S/3D
4 FC
5 SPC
6 3DIN
7 ROUT
8 GND
(c)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.
Agamem Microelectronics Inc. PRELIMINARY
PIN DESCRIPTIONS
AA8334
SURROUND PROCESSOR
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME RIN VREF S/3D FC SPC 3DIN ROUT GND LOUT DET 3DF4 3DF3 3DF2 3DF1 LIN VCC
PIN FUNCTION Input pin R DC reference voltage pin STEREO/3D (QXpander) sound switch pin Filter frequency control pin Spread control pin 3D (QXpander) input pin Output pin R GND pin Output pin L VCC off detect pin Filter pin 4 Filter pin 3 Filter pin 2 Filter pin 1 Input pin L Supply voltage pin
(c)Copyright Agamem Microelectronics Inc.
2
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.
Agamem Microelectronics Inc. PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
AA8334
Ta=25
SURROUND PROCESSOR
PARAMETER Storage temperature Operating temperature Power supply voltage Input voltage Output current Allowable loss
SYMBOL TSTG TOPR VCC max. VIN max. Io max. Pd
RATING -40~+125 -40~+85 12
0 <= VIN <= VCC
UNIT

C C
V V mA mW
10 350
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. RECOMMENDED OPERATING RANGE
Ta = +25 C
ITEM Operating temperature Operating voltage QXpander Operating voltage bypass
SYMBOL TOPR Vopq Vopb
RATINGS -40~+85 3.8~9.0 R1=18k 3.0~9.0
UNIT
V V
ELECTRICAL CHARACTERISTICS
TA = 25C, VCC = 8V, Vbyp=5V
SYMBOL ICC Gqx1 Gqx2 Gqx3
PARAMETER Consumption current Voltage gain QXpander 1 Voltage gain QXpander 2 Voltage gain QXpander 3
CONDITIONS
LIMITS MIN TYP MAX 12 22 10.6 7.1 10.6
UNIT mA dB dB dB
ZLIN : 0.5Vrms, 1kHz , TP1 ZLIN : 0.5Vrms, 1kHz , TP2 ZRIN : 0.5Vrms, 1kHz , TP2
7.6 4.1 7.6
9.1 5.6 9.1
(c)Copyright Agamem Microelectronics Inc.
3
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.
Agamem Microelectronics Inc. PRELIMINARY
SYMBOL Gqx4 Gby1 Gby2 PARAMETER Voltage gain QXpander 4 Voltage gain bypass 1 Voltage gain bypass 2 Input voltage (1) CONDITIONS MIN ZRIN : 0.5Vrms, 1kHz, TP1 ZLIN : 0.5Vrms, 1kHz, Vbyp=0V, TP1 ZRIN : 0.5Vrms, 1kHz, Vbyp=0V, TP2 VCC=8V *1, ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2 VCC=3.8V, ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2 VCC=3V, ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2 VCC=8V *2, ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2 ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2 ZLIN : 0.5Vrms, 1kHz, TP1, or ZRIN : 0.5Vrms, 1kHz,TP2, Vbyp=0V ZLIN : 0.5Vrms, 1kHz, TP1, and ZRIN : 0.5Vrms, 1kHz,TP2, Vbyp=0V *3 *4 -1.0 4.1 -1 -1
AA8334
LIMITS TYP 5.6 0 0 MAX 7.1 1 1 dB dB dB UNIT
SURROUND PROCESSOR
VIN1
0.5
0.7
Vrms
VIN2
Input voltage (2)
0.15
0.25
Vrms
VIN3
Input voltage (3)
0.3
0.45
Vrms
VIN4
Input voltage (4) Total harmonic distortion QXpander Total harmonic distortion bypass
0.25
0.35
Vrms
THDqx
0.4
1.0
%
THDby
0.03
0.3
%
Cb
R-L channel balance Bypass pin voltage (H) Bypass pin voltage (L)
0
1.0
dB
Vbyph Vbypl
2.1
VCC 0.7
V V
(c)Copyright Agamem Microelectronics Inc.
4
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.
Agamem Microelectronics Inc. PRELIMINARY
SYMBOL Ibyph Ibypl TvOFF Vdeth Vdetl Iref RIN PSRRqx PARAMETER Bypass pin current (H) Bypass pin current (L) Recommended power supply off time DET terminal voltage (H) DET terminal voltage (L) VREF terminal current Input resistance Power supply ripple rejection ratio QXpander Power supply ripple rejection ratio bypass Crosstalk (1) CONDITIONS MIN Vbyp=5V *5 TP5 Vbyp=0V *6 TP5 *7 *7 TP6 *7 TP6 SW2 : B TP3, TP4 VCC : 8Vdc and 50mVrms, 100Hz *8, TP1 or TP2 VCC : 8Vdc and 50mVrms, 100Hz *8, Vbyp=0V, TP1 or TP2 ZLIN : 0.5Vrms, 1kHz *9, Vbyp=0V, TP1 and TP2 ZRIN : 0.5Vrms, 1kHz *10, Vbyp=0V, TP1 and TP2 -2.2 21 -10 0.1 7.5
AA8334
LIMITS TYP MAX 350 uA uA 1.0 S V 0.7 -0.6 30 -40 1 39 -30 V uA k dB UNIT
SURROUND PROCESSOR
PSRRby
-55
-40
dB
Ct1
-85
-70
dB
Ct2
Crosstalk (2)
-85
-70
dB
Note 1: f=1 kHz, It is input voltage that THD of output voltage is 1%. The difference of phase between the left input signal and the right one is 0. Note 2: f=1 kHz, It is input voltage that THD of output voltage is 1%. The difference of phase between the left input signal and the right one is 180. Note 3: High-Level input voltage of BYP terminal (pin 3) (QXpander MODE) Note 4: Low-Level input voltage of BYP terminal (pin 3) (bypass MODE) Note 5: Input current of BYP terminal (pin 3) (Vbyp=5V)
(c)Copyright Agamem Microelectronics Inc.
5
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.
Agamem Microelectronics Inc. PRELIMINARY
Note 6: Input current of BYP terminal (pin 3) (Vbyp=0v)
AA8334
SURROUND PROCESSOR
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.
Tvoff
Vcc=8V
Vcc waveform (Pin 16)
Vcc=0V Vdeth DET pin waveform (Pin 10) Vdet1
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.
(c)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.
Agamem Microelectronics Inc. PRELIMINARY
MEASURING CIRCUIT
Vcc R47 5.1K C4 22uF + TP3 Vcc
AA8334
SURROUND PROCESSOR
TP6 C18 C18 C18 C18 R5 0.01uF 0.01uF 0.01uF 0.01uF 10K C10 22uF + R12 5.1K TP1 ZLOUT Vcc
ZLIN Vcc
16 R2 18K R3 18K C3 22uF 1 ZRIN + C3 22uF R37 TP4 5.1K
15
14
13
12
11
10
9
+
AA8334 QXpander Processors
2 3 4 5 + Vbyp R4 TP5 7.5K VR2 50K R11 5.1K 6 C9 2.2uF 7 8 C11 22uF +
R4 470
L2 MUTE
ZROUT TP2
Note 1: Capacitor Tolerance +/-5% Note 2: Resistor Tolerance +/-1% Note 3: The Vbyp range is from 2.1V to Vcc for QXpander MODE.
(c)Copyright Agamem Microelectronics Inc.
7
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.
Agamem Microelectronics Inc. PRELIMINARY
APPLICATION CIRCUIT
Vcc Vcc
AA8334
SURROUND PROCESSOR
C4 22uF + Vcc 16 R2 18K PreAmplifier R3 18K C3 22uF 1 + C3 22uF Vbyp 2 15
C18 C18 C18 C18 R5 0.01uF 0.01uF 0.01uF 0.01uF 10K
C10 22uF +
14
13
12
11
10
9
Mute
+
AA8334 QXpander Processors
3 4 5 + 6 C9 2.2uF 7 8 C11 22uF + Power Amplifier
R4 7.5K
VR2 50K
Note 1: Please see recommended operating conditions Note 1). Note 2: Capacitor tolerance +/-5% Note 3: Resistor tolerance +/-1% Note 4: The QXpander effect (the spread effect) is adjusted with VR. Note 5: We recommend using the regulator for the power supply which occurs the ripple. Note 6: The mute signal which switches off the power supply of a power amplifier that is connected with AA8334 appears in the 10 terminal. Note 7: When the power supply is switched on, the pop noise occurs. We recommend muting the pop noise by the power amplifier that is connected with AA8334. ORDERING INFORMATION ORDER NO. AA8334A PACKAGE TSSOP16L PACKING Tape & Reel ONE REEL Q'TY 2,500ea MARK CHART
AA8334 XXXX A
(c)Copyright Agamem Microelectronics Inc.
8
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.
Agamem Microelectronics Inc. PRELIMINARY
PACKAGE DIMENSIONS TSSOP 16L
AA8334
SURROUND PROCESSOR
(c)Copyright Agamem Microelectronics Inc.
9
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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