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PDF LV1100 Data sheet ( Hoja de datos )
| Número de pieza | LV1100 | |
| Descripción | Digital Surround Audio Signal-Processing IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : EN5506
Bi-CMOS LSI
LV1100
Digital Surround Audio Signal-Processing IC
Overview
The LV1100 is an audio signal-processing Bi-CMOS LSI
that integrates input and output filters, a delay line (built-
in memory), and a delay/reverb function with a maximum
delay of 120 ms on a single chip. It also provides built-in
fixed matrix (L+R, L–R) and front mixing (with level and
phase switching) functions. A full complement of
surround modes can be easily implemented by combining
these functions.
Functions and Features
• Input switching (L+R, L–R, IN–A)
• On-chip memory (12K SRAM)
• Front adder (+3 dB, 0 dB, –3 dB, -∞)
• Input and output filters
• Input filter –7 kHz low-pass filter
• Output filter –5 kHz low-pass filter: switchable with a
3 kHz low-pass filter
• On-chip VDD circuit
• Input and output muting function
• A simulated surround system can be easily implemented
with only one chip.
• ADM A/D and D/A converters
• Variable delay times
– Short mode; Maximum delay: 60 ms. Delay time
selectable from six delay times in 10-ms steps.
– Long mode; Maximum delay: 120 ms. Delay time
selectable from six delay times in 20-ms steps.
Package Dimensions
unit: mm
3067-DIP24S
[LV1100]
SANYO: DIP24S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Ta ≤ 70°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Symbol
VCC
VCC opg
Conditions
Conditions
Ratings
12
420
–25 to +70
–40 to +125
Unit
V
mW
°C
°C
Ratings
9
8 to 10
Unit
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
83196HA (OT) No. 5506-1/10
1 page  
Command List
LV1100 Control Format
LV1100
A = L ... Selects the LV1100.
B = L ... When B is low, the mode settings listed below can be made.
L
D1 IN-A DELAY
D2 L+R
D3 DELAY OUT ON;
Turns on surround system feedback
7 kHz L.P.F ON/OFF
D4, D5
LL THROUGH
LH NOT USE
HL FILTER
HH A/D INPUT MUTE
L
D6 OUT-L, –R MUTE ON
D7 OUT-A MUTE ON
D8 FRONT ADD INPHASE
(In-phase addition)
FRONT ADD EFFECT VOL (Addition to the front left and right channels)
D9, D10
LL +3 dB
LH 0 dB
HL –3 dB
HH MUTE
B = H ... When B is high, the mode settings listed below can be made.
D1 D2 IN-A output filter
L L 3 kHz L.P.F-OFF
L H 3 kHz L.P.F-ON
D3 D4 D5
***
* = don’t care
H
L+R, L–R DELAY
L–R
DELAY OUT OFF;
Turns off surround system feedback
H
OUT-L, –R MUTE OFF
OUT-A MUTE OFF
FRONT ADD INVERTED PHASE
(Out-of-phase addition)
No. 5506-5/10
5 Page | ||
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| PDF Descargar | [ Datasheet LV1100.PDF ] | |
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