LV1100 Datasheet, PDF (1/10 Pages) Sanyo Semicon Device – Digital Surround Audio Signal-Processing IC

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 V_DD 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
V_CC max
Pd max
Topr
Tstg
Ta ≤ 70°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Symbol
V_CC
V_CC opg
Conditions
Conditions
Ratings
Unit
12
V
420
mW
–25 to +70
°C
–40 to +125
°C
Ratings
Unit
9
V
8 to 10
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