ROHM_QX2130_FS.pdf
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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
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 (45
m
V
rms
)
7) Low power consumption
8) Available in SSOP-A20 pin package or SDIP22 pin
package.
•
Block diagram
13
20
19
18
17
16
15
14
12
11
V
CC
BIAS
VIRTUAL AUDIO
QXpander
TM
PROCESSOR
GND
1
2
3
4
5
6
7
8
9
10
Note:The above diagram is for the QX2130FS (SSOP - A20 package)
1
Multimedia ICs
QX2130FS / QX2130S
•
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
V
CC
13
V
1000
*
1
QX2130FS
Power dissipation
Pd
mW
750
*
QX2130S
2
Operating temperature
Topr
0 ~ + 70
°
C
Storage temperature
Tstg
– 55 ~ + 125
°
C
*
1.6mm glass epoxy board
Reduced by 10.0mW for each increase in Ta of 1
1 When mounted on a 90
´
50
´
°
C over 25
°
C.
*
1.6mm glass epoxy board
Reduced by 7.5mW for each increase in Ta of 1
2 When mounted on a 90
´
50
´
°
C over 25
°
C.
•
Recommended operating conditions (Ta = 25°C)
Parameter
Operating power supply voltage
Symbol
Min.
Typ.
Max.
Unit
V
CC
4.5
—
12.5
V
2
Multimedia ICs
QX2130FS / QX2130S
•
Input / output circuits (with QX2130FS)
1pin
BIAS IN
2pin
MUTE
3pin
LCH IN
4pin
CTRL0
5pin
CL1
50k
2k
5k
R
R
30k
30k
75k
50k
6pin
7pin
CL3
8pin
CL4
9pin
LCH OUT
11pin
POWER SAVE
CL2
50k
R
R
25k
10k
R
R
R
R
R
R
50k
10k
12pin
RCH OUT
13pin
CR4
14pin
CR3
15pin
CR2
16pin
CR1
R
R
25k
R
R
R
R
R
R
R
R
18pin
RCH IN
19pin
BIAS OUT
pin17
CTRL1
2k
5k
75k
30k
3
Multimedia ICs
QX2130FS / QX2130S
•
Analog characteristics (V
CC
= + 5V DC, GND = 0V DC, Ta = 25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
á
Supply current
ñ
Supply current (QX mode)
No signal Input
No signal Input
No signal Input
I
CC
1
1.3
3.0
5.2
mA
Supply current (stereo mode)
I
CC
2
1.3
3.0
5.2
mA
Supply current (power saving mode)
I
CC
3
—
230
500
m
A
á
Maximum input level
ñ
V
IN
= 100Hz V
OUT
1%
SINGLE channel INPUT
Maximum input level (QX3 mode)
V
INMax.
1
– 8.3
– 5.3
—
dBV
V
IN
= 100Hz V
OUT
1%
SINGLE channel INPUT
Maximum input level (QX2 mode)
V
INMax.
2
– 7.6
– 4.6
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum input level (QX1 mode)
V
INMax.
3
– 7.4
– 4.4
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum input level (stereo mode)
V
INMax.
4
– 2.4
+ 0.6
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum output level
V
OUTMax
.
– 3.0
+ 0.5
—
dBV
á
Maximum mute level
ñ
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Maximum mute level (QX mode)
VMUTE1
—
– 86
– 76
dBV
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Maximum mute level (stereo mode)
VMUTE2
—
– 97
– 87
dBV
Channel balance
CB
– 1.5
0
+ 1.5
dB
V
IN
= 600Hz, L + RIN
Output current
I
OUT
——+ / –1
mA
—
—
—
—
—
Load resistance
R
L
10
—
—
k
W
Load capacitance
C
L
—
—
1000
pF
Input impedance
R
IN
50
75
100
k
W
Output impedance
R
OUT
—
—
200
W
á
Distortion
ñ
THD + NOISE
V
IN
= 1kHz, – 20dBV
THD + NOISE
V
IN
= 1kHz, – 20dBV
THD + NOISE
V
IN
= 1kHz, – 20dBV
THD + NOISE
V
IN
= 1kHz, – 20dBV
Distortion (QX3 mode)
DSTN1
—
0.15
0.5
%
Distortion (QX2 mode)
DSTN2
—
0.07
0.3
%
Distortion (QX1 mode)
DSTN3
—
0.04
0.2
%
Distortion (stereo mode)
DSTN4
—
0.02
0.2
%
á
Output noise voltage
ñ
BW: DIN AUDIO
R
g
= 600
W
Output noise voltage (QX mode)
VNOISE1
—
– 87
– 77
dBV
BW: DIN AUDIO
R
g
= 600
Output noise voltage (stereo mode)
VNOISE2
—
– 98
– 88
dBV
W
á
Crosstalk
ñ
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Crosstalk (stereo mode)
C
T
—
– 98
– 88
dBV
*
BW1: 400Hz – 30kHz (V
IN
=
1kHz) , BW2: – 30kHz (V
IN
=
100Hz)
4
Multimedia ICs
QX2130FS / QX2130S
(V
CC
= + 12V DC, GND = 0V DC, Ta = 25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
á
Supply current
ñ
Supply current (QX mode)
Quiescent
Quiescent
Quiescent
I
CC
1
2.0
4.9
12.0
mA
Supply current (stereo mode)
I
CC
2
2.0
4.9
12.0
mA
Supply current (power saving mode)
I
CC
3
—
560
1200
m
A
á
Maximum input level
ñ
V
IN
= 100Hz V
OUT
1%
SINGLE channel. INPUT
Maximum input level (QX3 mode)
V
INMAX.
1
+ 1.6
+ 4.6
—
dBV
V
IN
= 100Hz V
OUT
1%
SINGLE channel INPUT
Maximum input level (QX2 mode)
V
INMAX.
2
+ 2.3
+ 5.3
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum input level (QX1 mode)
V
INMAX.
3
+ 2.5
+ 5.5
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum input level (stereo mode)
V
INMAX.
4
+ 8.0
+ 11.0
—
dBV
V
IN
= 1kHz V
OUT
1%
SINGLE channel INPUT
Maximum output level
V
OUTMax
.
+ 7.8
+ 10.8
—
dBV
á
Maximum mute level
ñ
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Maximum mute level (QX mode)
VMUTE1
—
– 85
– 75
dBV
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Maximum mute level (stereo mode)
VMUTE2
—
– 97
– 87
dBV
Channel balance
CB
—
0
—
dB
V
IN
= 600kHz, L + R
IN
Output current
I
OUT
——
±
1
A
Load resistance
R
L
10
—
—
k
W
Load capacitance
C
L
—
—
1000
pF
Input impedance
R
IN
50
75
100
k
W
Output impedance
R
OUT
—
—
200
W
á
Distortion
ñ
THD + NOISE
V
IN
= 1kHz, – 20dBV
Distortion (QX3 mode)
DSTN1
—
0.16
0.5
%
THD + NOISE
V
IN
= 1kHz, – 20dBV
Distortion (QX2 mode)
DSTN2
—
0.07
0.3
%
THD + NOISE
V
IN
= 1kHz, – 20dBV
Distortion (QX1 mode)
DSTN3
—
0.05
0.2
%
THD + NOISE
V
IN
= 1kHz, – 20dBV
Distortion (stereo mode)
DSTN4
—
0.02
0.2
%
á
Output noise voltage
ñ
BW: DIN AUDIO
R
g
= 600
W
Output noise voltage (QX mode)
VNOISE1
—
– 85
– 75
dBV
BW: DIN AUDIO
R
g
= 600
Output noise voltage (stereo mode)
VNOISE2
—
– 99
– 89
dBV
W
á
Crosstalk
ñ
BW: DIN AUDIO
V
IN
= 1kHz, – 20dBV
Crosstalk (stereo mode)
C
T
—
– 98
– 88
dBV
*
BW1: 400Hz – 30kHz (V
IN
= 1kHz) , BW2: – 30kHz (V
IN
= 100Hz)
5
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