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PDF LC75342 Data sheet ( Hoja de datos )
| Número de pieza | LC75342 | |
| Descripción | Single-Chip Volume and Tone Control System | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENN*6271
CMOS IC
LC75342, 75342M
Single-Chip Volume and Tone Control System
Preliminary
Overview
The LC75342 and LC75342M are electronic volume and
tone control systems that provide volume, balance, a 2-
band equalizer, and input switching functions that can be
controlled from serially transferred data.
Functions
• Volume: 0 dB to –79 dB (in 1-dB steps) and –∞, for a
total of 81 settings.
The volume can be controlled independently in the left
and right channels to implement a balance function.
• Bass boost: Up to +20 dB in 2-dB steps. Peaking
characteristics.
• Treble: ±10 dB in 2-dB steps. Shelving characteristics.
• Selector: One of four sets of left/right inputs can be
selected.
• Input gain: The input signal can be boosted by from
0 dB to +30 dB in 2-dB steps.
Features
• On-chip buffer amplifiers minimize the number of
external components.
• Fabricated in a silicon gate CMOS process to minimize
switching noise from internal switches.
• Built-in analog ground reference voltage generation
circuit.
• All controls can be set from serially transferred data.
Supports the CCB standard.
Package Dimensions
unit: mm
3196-DIP30SD
[LC75342]
30 16
1 15
27.2
1.14 1.78
0.48 0.95
unit: mm
3216-MFP30S
30
[LC75342M]
16
SANYO: DIP30SD
1 15.3 15 0.15
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is a SANYO’s original bus format and all the
bus addresses are controlled by SANYO.
0.35 1.0 0.65
SANYO: MFP30S
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
D2499RM (OT) No. 6271-1/20
1 page  
LC75342, 75342M
Control System Timing and Data Format
Applications control the LC75342 and LC75342M by applying the stipulated serial data to the CL, DI, and CE pins. This
data consists of a total of 40 bits, of which 8 bits are the address and 32 bits are the data itself.
• Address code (B0 to A3)
The LC75342 and LC75342M have an 8-bit address code, and can be used together with other ICs that support the
Sanyo CCB serial bus format.
Address code B0 B1 B2 B3 A0 A1 A2 A3
(LSB)
0
1
0
0
0
0
0
1 (82HEX)
• Control code allocation
Input switching control D0 D1 D2 D3 Operation
(L1, L2, L3, L4, R1, R2, R3, R4)
0
0
0
0 L1 (R1) ON
1 0 0 0 L2 (R2) ON
0 1 0 0 L3 (R3) ON
1 1 0 0 L4 (R4) ON
0 0 1 0 All switches off
1 0 1 0 All switches off
0 1 1 0 All switches off
1 1 1 0 All switches off
No. 6271-5/20
5 Page 
Continued from preceding page.
Pin No.
Pin
LC75342, 75342M
Description
• Connection to the 0.5 × VDD voltage generator circuit used as the
analog signal ground.
28 Vref
Applications must connect a capacitor of about 10 µF between this pin
and VSS to exclude power supply ripple.
3 VSS • Ground
29 VDD • Power supply
• Chip enable
2 CE Data is written to the internal latch when this pin goes from high to low.
The internal analog switches operate at this point. Data transfer is
enabled when this pin is high.
1 DI
• Serial data and clock inputs used for IC control.
30 CL
• Electronic volume and tone control testing
4 VSS This pin must be tied to VSS during normal operation.
15 • Unused.
16 NC These pins must be left open or connected to VSS during normal
27 operation.
Notes
No. 6271-11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LC75342.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LC75341 | Single-Chip Volume and Tone Control System | Sanyo Semicon Device |
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| LC75342 | Single-Chip Volume and Tone Control System | Sanyo Semicon Device |
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