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PDF LC75345M Data sheet ( Hoja de datos )
| Número de pieza | LC75345M | |
| Descripción | Electronic Volume Control System on-Chip | |
| Fabricantes | Sanyo Electric | |
| Logotipo |  |
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Ordering number : ENN6868
CMOS IC
LC75345M
Electronic Volume Control System
on-Chip
Overview
The LC75345M is an electronic volume system that can
control the volume, balance, 2-band equalizer, super bass,
and input switching functions by serial data input.
Functions
• Volume: 0 dB to –78 dB (1-dB step) and –∞ (64
positions)
0 dB to –50 dB (1-dB step), –50 dB to –70 dB
(2-dB step), –70-dB to –78 dB (4-dB step)
Balance function with separate L/R control
• Treble: ±10-dB control in 2-dB steps is possible.
Shelving characteristic.
• Bass: ±10-dB control in 2-dB steps is possible. Peaking
characteristics.
• Super bass: +10-dB control in 2-dB steps is possible.
Peaking characteristics.
• Selector: 5 input signals can be selected both for L and
R
• Input gain: 0 dB to +30 dB (2-dB step) amplification is
possible for the input signal.
• General-purpose amp (ATT): 2 on-chip general-purpose
amplifiers
Features
• On-chip buffer amplifier cuts down number of external
components
• Low switching noise generated by on-chip switch due to
use of silicon gate CMOS process
• On-chip reference voltage circuit for analog ground
• Controls performed with serial data input (CCB)
Package Dimensions
unit: mm
3263-MFP36SDJ (375 mil)
[LC75345M]
15.2
36 19
1 0.8
(0.8)
0.3 18
0.25
SANYO: MFP36SDJ (375 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
20901RM (OT) No. 6868-1/22
1 page  
Bass band equalizer control block
LC75345M
Parameter
Control range
Step resolution
Internal feedback resistance
Symbol
Geq
Estep
Rfeed
Pin Name
Conditions
max. boost/cut
Super bass band equalizer control block
Parameter
Control range
Step resolution
Internal feedback resistance
Symbol
Geq
Estep
Rfeed
Pin Name
Conditions
max. boost
General
Parameter
Total harmonic distortion
Crosstalk
Output noise voltage
Maximum attenuated output
Current drain
Input high-level current
Input low-level current
Symbol
Conditions
THD
CT
VN
Vomin
IDD
IIH
IIL
VIN = 1 Vrms, f = 1 KHz, total flat overall
VIN = 1 Vrms, f = 1 KHz, Rg = 1 kΩ, total flat overall
Flat overall, 80 kHz L.P.F
Flat overall, f = 1 kHz
VDD – VSS = +9 V
CL, DI, CE: VIN = 9 V
CL, DI, CE: VIN = 0 V
min
±8
1
Ratings
typ
±10
2
33.1
max
±12
3
Unit
dB
dB
kΩ
min
+8
1
Ratings
typ
+10
2
33.1
max
+12
3
Unit
dB
dB
kΩ
Ratings
min typ
80
9.3
–90
40
–10
max
0.01
µV
10
Unit
%
dB
dB
mA
µA
µA
No. 6868-5/22
5 Page 
Pin Functions
Pin No.
18
17
16
15
14
20
21
22
23
24
13
25
Pin Name
L1
L2
L3
L4
L5
R1
R2
R3
R4
R5
LSEL0
RSEL0
LC75345M
Function
• Input signal pins
• Input selector output pins
Equivalent circuit
VDD
Ln
Rn
Vref
VDD
SEL0
VDD
10 LBASS1
9 LBASS2
28
RBASS1
• Capacitor and resistor connection pins for configuring filter,
29
RBASS2
used for bass and super bass band
8 LSB
30 RSB
BASS1
SB
BASS2
7
LOUT
• ATT + equalizer output pins/Capacitor connection pins
31
ROUT
used to configure super bass filter
VDD
OUT
12 LVRIN
• Volume input pins
26 RVRIN
VDD
VRIN
11 LTRE
• Capacitor connection pins for configuring treble band filter
27 RTRE
VDD
TRE
Continued on next page.
No. 6868-11/22
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LC75345M.PDF ] | |
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