TOHM QX2130FS, QX2130S User Manual
1
Multimedia ICs
QXpander™ processor
QX2130FS / QX2130S
The QX pander chip (QX-2000 Series) is a sound enhancement sound processor based on QSOUND's QX pander™ 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
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 (45µV
rms)
7) Low power consumption
8) Available in SSOP-A20 pin package or SDIP22 pin
package.
•
Block diagram
GND
BIAS
V
CC
20
19
18
17 16
15
14
13
12
11
10
9
8
7
6
5
432
1
VIRTUAL AUDIO
QXpander
TM
PROCESSOR
BIASIN
MUTE
LCHIN
CTRL0
CL1
CL2
CL3
CL4
LCHOUT
GND
BIASOUT
RCHIN
CTRL1
CR1
CR2
CR3
CR4
RCHOUT
POWERSAVE
V
CC
Note:The above diagram is for the QX2130FS (SSOP - A20 package)
查询QX2130供应商
2
Multimedia ICs QX2130FS / QX2130S
•
Absolute maximum ratings (Ta = 25°C)
Parameter Symbol Limits Unit
Power supply voltage V
CC 13 V
QX2130S
Power dissipation Pd
QX2130FS
750
∗
2
1000
∗
1
mW
Operating temperature
Topr 0 ~ + 70 °C
Storage temperature
Tstg – 55 ~ + 125 °C
∗
1 When mounted on a 90 × 50 × 1.6mm glass epoxy board
Reduced by 10.0mW for each increase in Ta of 1°C over 25°C.
∗
2 When mounted on a 90 × 50 × 1.6mm glass epoxy board
Reduced by 7.5mW for each increase in Ta of 1°C over 25°C.
•
Recommended operating conditions (Ta = 25°C)
Parameter
Operating power supply voltage V
CC 4.5 12.5 V—
Symbol Min. Typ. Max. Unit
3
Multimedia ICs QX2130FS / QX2130S
•
Input / output circuits (with QX2130FS)
50k
50k
5k
30k
75k
2k
30k
RR
RR
RR
RR
R
R
25k
RRR
R
25k
10k
10k
50k
50k
RR
RR
RR
30k
75k
2k
5k
1pin BIAS IN 2pin MUTE 3pin LCH IN 4pin CTRL0 5pin CL1
6pin
CL2
7pin CL3 8pin CL4 9pin LCH OUT
11pin POWER SAVE
12pin RCH OUT
13pin
CR4
14pin
CR3
15pin CR2
16pin CR1
pin17 CTRL1
18pin RCH IN
19pin
BIAS OUT
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