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PDF LC75344M Data sheet ( Hoja de datos )
| Número de pieza | LC75344M | |
| Descripción | Two-Channel Electronic Volume Control System | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC75344M (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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Ordering number : ENN7332
CMOS LSI
LC75344M
Two-Channel Electronic Volume Control System
Overview
The LC75344M is a two-channel electronic volume
control IC that is controlled by data input over a serial
interface.
Functions
• Volume control: 0 dB to –50 dB in 1 dB steps, –52 dB
to –78 dB in 2 dB steps, and –∞, for a total of 66
positions.
A balance function can be implemented by controlling
the left and right channels independently.
Package Dimensions
unit: mm
3086B-MFP10S
[LC75344M]
Features
• Built-in buffer amplifiers minimize the number of
external components required.
• Fabricated in a silicon gate CMOS process to minimize
the switching noise generated by internal switches.
• Built-in reference voltage generation circuit for the
analog ground level.
• All settings are controlled by data input over a serial
interface that conforms to the CCB specifications.
SANYO: MFP-10S (225 mil)
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21004TN (OT) No. 7332-1/12
1 page  
LC75344M
• Control Code Allocations
Volume control
D0 D1 D2 D3 D4 D5 D6 D7 Operation
0 0 0 0 0 0 0 0 0dB
1 0 0 0 0 0 0 0 –1dB
0 1 0 0 0 0 0 0 –2dB
1 1 0 0 0 0 0 0 –3dB
0 0 1 0 0 0 0 0 –4dB
1 0 1 0 0 0 0 0 –5dB
0 1 1 0 0 0 0 0 –6dB
1 1 1 0 0 0 0 0 –7dB
0 0 0 1 0 0 0 0 –8dB
1 0 0 1 0 0 0 0 –9dB
0 1 0 1 0 0 0 0 –10dB
1 1 0 1 0 0 0 0 –11dB
0 0 1 1 0 0 0 0 –12dB
1 0 1 1 0 0 0 0 –13dB
0 1 1 1 0 0 0 0 –14dB
1 1 1 1 0 0 0 0 –15dB
0 0 0 0 1 0 0 0 –16dB
1 0 0 0 1 0 0 0 –17dB
0 1 0 0 1 0 0 0 –18dB
1 1 0 0 1 0 0 0 –19dB
0 0 1 0 1 0 0 0 –20dB
1 0 1 0 1 0 0 0 –21dB
0 1 1 0 1 0 0 0 –22dB
1 1 1 0 1 0 0 0 –23dB
0 0 0 1 1 0 0 0 –24dB
1 0 0 1 1 0 0 0 –25dB
0 1 0 1 1 0 0 0 –26dB
1 1 0 1 1 0 0 0 –27dB
0 0 1 1 1 0 0 0 –28dB
1 0 1 1 1 0 0 0 –29dB
0 1 1 1 1 0 0 0 –30dB
1 1 1 1 1 0 0 0 –31dB
0 0 0 0 0 1 0 0 –32dB
1 0 0 0 0 1 0 0 –33dB
0 1 0 0 0 1 0 0 –34dB
1 1 0 0 0 1 0 0 –35dB
0 0 1 0 0 1 0 0 –36dB
1 0 1 0 0 1 0 0 –37dB
0 1 1 0 0 1 0 0 –38dB
1 1 1 0 0 1 0 0 –39dB
0 0 0 1 0 1 0 0 –40dB
Continued on next page.
No. 7332-5/12
5 Page 
LC75344M
Volume Control Step Characteristics
0
VDD=9V
–10 VSS=0V
f=1kHz
–20 VIN=0dBV
–30
–40
–50
–60
–70
–80
–90
–100
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
Step
ILC05482
THD vs. Frequency Characteristics
0.1
7 VDD=9V
5 VSS=0V
3 80kHz LPW
2
0.01
7
5
3
2
0.001
7
5
3
2
VIN= –10dBV
0dBV
0.0001
10
2 3 5 7 100
2
3 5 71000
Frequency
2
—
3
Hz
5
710000 2
3 5 7100000
ILC05484
Crosstalk Characteristics
0
VDD=9V
–10 VSS=0V
f=1kHz
–20 VIN=0dBV(LIN)
–30 Vin = 1 kΩ, terminated (RIN)
ROUT Measured
–40
–50
–60
–70
–80
–90
–100
10
2 3 5 7 100
2 3 5 71000 2 3 5 710000 2 3 5 7100000
Frequency — Hz
ILC05486
THD vs. Volume Control Step Characteristics
1.0
7
5
3
VDD=9V
VSS=0V
2 80kHz LPW
0.1 All settings flat overall.
7
5
3
2
0.01
7
5
3
2
0.001
7
5
3
2
10kHz
1kHz
0.0001
–40 –30 –20 –10
0
10
Volume Step
ILC05483
THD vs. Input Level Characteristics
1.0
7
5
3
VDD=9V
VSS=0V
2 80kHz LPW
0.1 All settings flat overall.
7
5
3
2
0.01
7
5
3
2
0.001
7
5
3
2
10kHz
1kHz
0.0001
–40 –30 –20 –10
0
10
Input level — dBV
ILC05485
THD vs. Supply Voltage Characteristics
0.01
VDD=9V
7 VSS=0V
5 80kHz LPW
All settings flat overall.
3
2 10kHz
0.001
7
5
3
6
1kHz
100Hz
7 8 9 10 11 12
Supply voltage, VDD — V
ILC05487
No. 7332-11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LC75344M.PDF ] | |
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