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PDF LC75391M Data sheet ( Hoja de datos )
| Número de pieza | LC75391M | |
| Descripción | Single-Chip Electronic Volume Control System | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number :EN*5201A
CMOS LSI
LC75391, 75391M
Single-Chip Electronic Volume Control System
Overview
The LC75391 and LC75391M are single-chip electronic
volume and tone control systems that support volume
control, tone control, and input and output signal
switching functions controlled by serial input data.
Functions
• Input and output signal switching: The four I/O switches
can be set to on or off independently.
• Volume control: Independent control of the left and
right channels can be used to implement a balance
function.
0 to –20 dB in 2 dB steps, –20 to –32 dB in 3 dB steps,
–32 to –53 dB in 4 dB steps, –52 to –70 dB in 4.5 dB
steps, and –∞.
• Tone controls: Four frequency characteristic types
selectable by setting internal switches.
Also supports a buffer function that requires no external
components.
• Two general-purpose output ports: These ports allow
this LSI to control motorized volume controls and
general-purpose logic.
Package Dimensions
unit: mm
3196-DIP30SD
[LC75391]
unit: mm
3216-MFP30S
[LC75391M]
• 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.
SANYO: DIP30SD
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN max
Pd max
Topr
Tstg
Conditions
VDD
CL, DI, CE, L1 to L4, R1 to R4
Ta ≤ 85°C
SANYO: MFP30S
Ratings
12
VSS – 0.3 to VDD + 0.3
160
–40 to +85
–50 to +125
Unit
V
V
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N3095HA (OT) No. 5201-1/13
1 page  
2. Output noise voltage
LC75391, 75391M
No. 5201-5/13
5 Page 
LC75391, 75391M
Application Circuit Example 1 (3-input type)
Usage Notes
1. The internal analog switch states are undefined when power is first applied. Signals should be muted externally until
the control data has been set up.
2. Cover the CL, DI, and CE pin signal lines with the ground pattern or use shielded cable for those lines to prevent the
high-frequency digital signals transmitted to the CL, DI, and CE pins from entering the analog system as noise.
3. Use bipolar capacitors if at all possible for capacitors for which no polarity is indicated.
4. We recommend making large changes in the electronic volume control setting, such as from 0 dB to –∞ dB, by using
several intermediate steps as shown in the example below. This can reduce the switching noise associated with large
changes.
Example: 0 dB → –10 dB → –20 dB → –40 dB → –70 dB → –∞
No. 5201-11/13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet LC75391M.PDF ] | |
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