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PDF CXA1352AS Data sheet ( Hoja de datos )
| Número de pieza | CXA1352AS | |
| Descripción | 2-channel 5 Elements Graphic Equalizer IC | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA1352AS
2-channel 5 Elements Graphic Equalizer IC
Description
The CXA1352AS is a bipolar IC for graphic
equalizer use. All controls are DC performed while
the addition of single-potentiometers easily
composes a 2-channel graphic equalizer.
22 pin SDIP (Plastic)
Features
• Microcomputer control possible
• Built-in electronic volume
• Built-in pseudo loudness function
• Built-in balance function
• Each channel corresponds to 5 elements
• 2 channels of FIX OUT and LINE OUT pins
Applications
Graphic equalizer for cassette tape recorder with
radio, mobile stereo and portable stereo
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC 12 V
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD 1200 mW
Operating Conditions
• Supply voltage
• Operating temperature
VCC
DVCC
Topr
4.0 to 10.0
3.5 to VCC
–20 to +75
V
V
°C
Block Diagram and Pin Configuration
22 21 20 19 18 17 16 15 14 13 12
14dB
29dB
VOLUME
CONTROL
GRAPHIC EQUALIZER
GRAPHIC EQUALIZER
BIAS
14dB
29dB
VOLUME
1 2 3 4 5 6 7 8 9 10 11
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E91912B95-TE
1 page  
CXA1352AS
Electrical Characteristics
No. Item
Supply voltage
1 (operation)
2
Supply voltage
(control)
3 Current consumption
4 Reference input level
5 Reference output level
6 Reference LINE
output level
7 Reference FIX
output level
8 Graphic equalizer
setting frequency (1)
9
Graphic equalizer
setting frequency (2)
10
Graphic equalizer
setting frequency (3)
11
Graphic equalizer
setting frequency (4)
12
Graphic equalizer
setting frequency (5)
13 Graphic equalizer
frequency deviation
14 Maximum boost (1)
15 Maximum boost (2)
16 Maximum cut (1)
17 Maximum cut (2)
18
Total harmonic
distortion
19 Volume attenuation (1)
20 Volume attenuation (2)
21 Balance adjustment (1)
22 Balance adjustment (2)
23 Noise level
24 Output offset voltage
Symbol
VCC
Test conditions
(Ta=25 °C, VCC=8 V, DVCC=5 V)
Min. Typ. Max. Unit
4.0 — 10.0 V
DVCC
ICC
VIN
VOUT
VLINE
VFIX
GEQ1
Graphic equalizer ALL FLAT,
Volume MID
Graphic equalizer ALL FLAT,
Volume MAX, f=1 kHz
f=1 kHz
Graphic equalizer ALL FLAT,
f=1 kHz
LPF cut off frequency (–3 dB)
3.5 — VCC V
8.0 12.0 16.0 mA
— –34.0 — dBm
–23.0 –20.0 –17.0 dBm
–6.5 –4.5 –2.5 dBm
–23.0 –20.0 –17.0 dBm
— 200 — Hz
GEQ2 BPF (1) central frequency
— 400 — Hz
GEQ3 BPF (2) central frequency
— 1.0 — kHz
GEQ4 BPF (3) central frequency
— 4.0 — kHz
GEQ5 HPF cut off frequency (–3 dB)
— 8.0 —
∆ EQ
GEQB1
GEQB2
GEQC1
GEQC2
THD
VOL1
VOL2
BAL1
BAL2
VNOIS
VOFF
Cut off frequency and central
frequency deviation
f=400 Hz, 1 kHz, 4 kHz
maximum boost
f=100 Hz, 10 kHz maximum boost
f=400 Hz, 1 kHz, 4kHz
maximum cut
f=100 Hz, 10 kHz maximum cut
RL=2 kΩ, Graphic equalizer
ALL FLAT, Volume MAX, f=1 kHz,
Reference +10 dB is input
Graphic equalizer ALL FLAT,
Volume MAX, f=1 kHz
Graphic equalizer ALL FLAT,
Volume MIN, f=1 kHz
Graphic equalizer ALL FLAT,
BAL=MAX,Volume MAX, f=1kHz
Graphic equalizer ALL FLAT,
BAL=MIN, Volume MAX, f=1kHz
Rg=5 kΩ, Graphic equalizer ALL
FLAT, Volume MAX, “A” WTG filter
Graphic equalizer ALL FLAT,
Volume MAX
–20
9.0
8.0
–13.0
–12.0
—
–1.5
—
—
—
—
3.5
0
11.2
10.7
–10.7
–9.5
0.25
0
–94.4
0
–66
–93.1
4.0
20
14.0
14.0
–8.5
–7.0
1.0
1.5
–80.0
—
—
–88.0
4.5
kHz
%
dB
dB
dB
dB
%
dB
dB
dB
dB
dB
V
—5—
5 Page 
CXA1352AS
2. Control through microcomputer possible
Volume, balance and the 100 Hz, 400 Hz, 1 kHz, 4 kHz, 10 kHz boost, cut control respectively are all
executed through DC voltage.
Also, the control voltage range is determined through DVCC (control power supply, independent from VCC)
and is from 0 V to DVCC. Accordingly, the control range can be varied at will, by changing DVCC voltage.
By setting DVCC 5 V, control through the microcomputer becomes possible.
Setting to DVCC=VCC enables usage with single power supply.
3. Pseudo loudness
A loudness function interlocking with volume (VOL) is featured.
With this IC, to provide a loudness effect, the 100 Hz and 10 kHz graphic equalizer part does not use a
BPF but is composed of a low pass filter (LPF) and a high pass filter (HPF) respectively.
The operation is explained as follows. As VOL drops below the center, the 100 Hz and 10 kHz graphic
equalizer part Ib (See Fig. 3.) gradually increases even if the graphic equalizer control pin (100 Hz and 10
kHz) is flat, boost applies and as a result loudness effect is obtained.
—11—
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet CXA1352AS.PDF ] | |
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