|
|
PDF LC75386NE Data sheet ( Hoja de datos )
| Número de pieza | LC75386NE | |
| Descripción | Electronic Volume and Tone Control for Car Stereo Systems | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LC75386NE (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
Ordering number : EN*5937
Preliminary
CMOS IC
LC75386NE
Electronic Volume and Tone Control
for Car Stereo Systems
Overview
The LC75386NE is an electronic volume and tone control
IC that can implement a wide range of functions including
volume, balance, fader, bass and treble controls, loudness,
input switching, and input gain control with a minimal
number of external components.
Functions
• Volume:
0 to –79 dB ( in 1-dB steps) and –∞ for
a total of 81 settings.
A balance function can be implemented
by controlling the left and right channel
volume settings independently.
• Fader:
The rear or the front outputs can be
attenuated over 16 settings.
(0 to –2 dB in 1-dB steps, –2 to –20 dB
in 2 dB steps, –20 to –30 dB in 10-dB
steps, –45 dB, -60 dB, and –∞ for a
total of 16 settings.)
• Bass and treble: Control over a ±12-dB range in 2-dB
steps in each band.
• Input gain: The input signal can be amplified from
0 to +18.75 dB (in 1.25-dB steps).
• Input switching: One of 6 inputs can be selected for
each of the left and right channels.
(Five are single-ended inputs, and one
is a differential input.)
• Loudness:
Taps are output from the –32-dB
positions of the 2-dB step volume
ladder resistors, and loudness operation
can be implemented by attaching
external capacitors.
Features
• On-chip buffer amplifiers minimize the number of
external components required.
• The low level of switching noise generated from internal
switches due to fabrication in a CMOS process
minimizes switching noise when no input signals are
present.
• The use of built-in zero-cross switching circuits
minimizes switching noise when input signals are
present.
• Built-in VDD/2 reference voltage generation circuit
• All controls are controlled from CCB serial data input.
Package Dimensions
unit: mm
3159-QFP64E
[LC75386NE]
SANYO: QFP64E
• 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 Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
51298RM (OT) No. 5937-1/20
1 page  
LC75386NE
Fader Control Block
Parameter
Input resistance
Inter-step setting error
Left/right balance
Overall Characteristics
Parameter
Total harmonic distortion
Inter-input crosstalk
Left/right crosstalk
Maximum attenuation
Output noise voltage
Current drain
High-level input current
Low-level input current
Maximum input voltage
Symbol
Applicable pins
Rfed LFIN, RFIN
ATerr
BAL
Conditions
0 dB to –2 dB
–2 dB to –20 dB
–20 dB to –30 dB
–30 dB to –60 dB
min
25
Ratings
typ
50
max
100
±0.5
±1
±2
±3
±0.5
Unit
kΩ
dB
dB
dB
dB
dB
Symbol
Conditions
THD1
THD2
CT
CT
Vomin1
Vomin2
VN1
VN2
IDD
IIH
IIL
VCL
VIN = –10 dBV, f = 1 kHz
VIN = –10 dBV, f = 10 kHz
VIN = 1 Vrms, f = 1 kHz
VIN = 1 Vrms, f = 1 kHz
VIN = 1 Vrms, f = 1 kHz
VIN = 1 Vrms, f = 1 kHz, INMUTE, Fader: –∞
All flat, IHF-A filter
All flat, 20 Hz to 20 kHz bandpass filter
CL, DI, CE, VIN = 9 V
CL, DI, CE, VIN = 0V
THD = 1%, RL = 10 kΩ, All flat, fIN = 1 kHz
min
80
80
80
90
Ratings
typ
0.004
0.006
88
88
88
95
5
7
33
–10
2.5 2.9
max
0.01
0.01
10
15
40
10
Unit
%
%
dB
dB
dB
dB
µV
µV
mA
µA
µA
Vrms
Control System Timing and Data Format
The LC75386NE is controlled by inputting stipulated data serially to the CL, DI, and CE pins. The data consists of a total
of 52 bits, of which 8 bits are the address and 44 bits are the actual control data.
Note*: The minimum value is determined by the value of the capacitor connected to the TIM pin (pin 20).
If the value of the capacitor is CTIM and the minimum value is TDmin, then:
TDmin = 3 × 103 × CTIM
If CTIM is 0.033 µF, then:
TDmin = 3 × 103 × 0.033 × 10–6 ≈ 100 µs
No. 5937-5/20
5 Page 
LC75386NE
Continued from preceding page.
Pin No.
42
41
40
7
8
9
36
35
34
13
14
15
39
38
37
10
11
12
Pin name
LF1C1
LF1C2
LF1C3
RF1C1
RF1C2
RF1C3
LF3C1
LF3C2
LF3C3
RF3C1
RF3C2
RF3C3
NC
NC
NC
NC
NC
NC
Function
• Connections for the capacitors that form the filters used for
tone circuit low band.
Connect capacitors between:
LF1C1 (RF1C1) and LF1C2 (RF1C2), and between
LF1C2 (RF1C2) and LF1C3 (RF1C3).
• Connections for the capacitors that form the filters used for
tone circuit high band.
Connect capacitors between:
LF3C1 (RF3C1) and LF3C2 (RF3C2), and between
LF3C2 (RF3C2) and LF3C3 (RF3C3).
• Unused pins. These pins are not connected to any part of
the IC.
33 LTOUT
• Equalizer outputs
16 RTOUT
32
LFIN
• Fader block inputs
17
RFIN
• These pins must be driven by low-impedance circuits.
31 LFOUT
30
LROUT
• Fader outputs. The front and rear signals are attenuated
separately. The amount of the attenuation is the same in
18
RFOUT
the left and right channels.
19 RROUT
• A capacitor with a value of a few tens of µF must be
57 Vref connected between Vref and AVSS (VSS) to reduce power
supply ripple in the VDD/2 voltage generation block.
56 VDD • Power supply
27
DVSS
• Logic system ground
29 LAVSS
• Analog system ground
22 RAVSS
Notes
Continued on next page.
No. 5937-11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LC75386NE.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LC75386NE | Electronic Volume and Tone Control for Car Stereo Systems | Sanyo Semicon Device |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |