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QX2130 Schematic ( PDF Datasheet ) - ROHM Semiconductor

Teilenummer QX2130
Beschreibung QXpander processor
Hersteller ROHM Semiconductor
Logo ROHM Semiconductor Logo 




Gesamt 9 Seiten
QX2130 Datasheet, Funktion
Multimedia ICs
QXpander™ processor
QX2130FS / QX2130S
The QX pander chip (QX-2000 Series) is a sound enhancement sound processor based on QSOUND's QX pan-
der™ technology, and produces virtual 3D sound from ordinary audio signals. This IC requires no special encoding
of input signals or additional speakers, and so simplifies the development of high-value-added personal computers,
televisions and audio products.
Applications
Speaker systems for desktop and notebook multimedia personal computers, televisions, audio equipment, video
games and other devices
Features
1) Virtual 3D sound from ordinary audio signals.
2) No special encoding signals are necessary.
3) Three enhanced modes:
QX1: Pro Listening
QX2: Wide Listening
QX3: Wow for Games
Block diagram
4) Internal functions for personal computers: power
saver function, output muting function and stereo
bypass function.
5) TTL-compatible control pins (at 5V).
6) Low noise (45µVrms)
7) Low power consumption
8) Available in SSOP-A20 pin package or SDIP22 pin
package.
20 19 18 17 16 15 14 13 12 11
VCC
BIAS
VIRTUAL AUDIO
QXpanderTM PROCESSOR
GND
1 2 3 4 5 6 7 8 9 10
Note:The above diagram is for the QX2130FS (SSOP - A20 package)
1






QX2130 Datasheet, Funktion
Multimedia ICs
QX2130FS / QX2130S
Digital characteristics (VCC = 4.5 – 5.5V DC, GND = 0V DC, Ta = 25°C)
Parameter
High level Input voltage
Low level Input voltage
I / O current, high level
I / O current, low level
Symbol
VIH
VIL
IIH
IIL
Min.
2.0
0.0
0.0
0.0
Typ.
Max.
5.0
0.8
0.3
0.1
Unit
V
V
mA
mA
VIH = VCC
VIL = 0V
Conditions
(VCC = 5.6 – 12.5V DC, GND = 0V DC, Ta = 25°C)
Parameter
High level Input voltage
Low level Input voltage
I / O current, high level
I / O current, low level
Symbol
VIH
VIL
IIH
IIL
Min.
2.5
0.0
0.0
0.0
Typ.
Max.
5.0
0.8
0.4
0.1
Unit
V
V
mA VIH = 5V
mA VIL = 0V
Conditions
Measurement circuit
VCC 5-12V
100µH
0.01µF
100µF
20
100µF
19
RIN CTRL1
600
3.3µF
2200p 2200p
2200p
ROUT
1200p
0.1µF
8.2k
3.3µF
POWERSAVE
18 17 16 15 14 13 12 11
VCC
BIAS
VIRTUAL AUDIO
QXpanderTM PROCESSOR
GND
1 2 3 4 5 6 7 8 9 10
3.3µF
MUTE
3.3µF
600
2200p 2200p 2200p 0.1µF
3.3µF
8.2k
LIN CTRL0
1200p
LOUT
Fig.1
Unit: R ()
C (F)
L (H)
Note: This diagram is for the QX2130FS (SSOP - A20 package) .
6

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