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LV1041M Datasheet

  • LV1041M

  • Dolby Prologic Decoder

  • 3頁

  • SANYO

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Ordering number : EN5889
Monolithic Linear IC
LV1041M
Dolby Prologic Decoder
Overview
The LV1041M is a Dolby Prologic Surround signal-
processing IC that implements in a single chip the
functions of the Sanyo LV1016 and LA2786 ICs and
a master volume control for the center and surround
channels. This IC allows both systems of Dolby Prologic
surround and digital surround to be formed into a single
IC.
Note *: Dolby and the double D symbol are registered
trademarks of the Dolby Laboratories Licensing
Corporation. This IC can only be used by Dolby
licensees. Licensing information and
corresponding technical information is available
from:Dolby Licensing Corporation
San Francisco, CA 94103-4813
USA
Features
鈥?Implements a Prologic surround decoder in a single
chip.
鈥?Wide dynamic range
鈥?All modes can be controlled from control data
transmitted serially over four lines: CLOCK, DATA,
ENABLE, and ENABLE2. This function is compatible
with the LV1016 and the LA2786.
Package Dimensions
unit: mm
3174-QFP80E
[LV1041M]
Functions
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Adaptive matrix
Center mode control (normal, phantom, wide)
4/3 channel logic control
Auto-balance (on/off)
Prologic off mode (bypass and full bypass)
Center trim (0 to 鈥?1 dB in 1-dB steps)
On-chip memory: (8K SRAM)
Variable delay time: 15, 20, 25, 30, 40, or 50 ms (15, 20,
25, or 30 ms for Dolby Prologic surround)
New A/D and D/A converter circuits adopted
On-chip Dolby B noise reduction
On-chip input and output filters
Built-in V
DD
circuit
Surround trim (0 to 鈥?1 dB in 1-dB steps)
Input and output muting functions
Master volume control for the center and surround
channels (0 to 鈥?4 dB in 鈥?-dB steps, 鈥?4 to 鈥?6 dB in
鈥?-dB steps, and muted)
SANYO: QIP80E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
51898RM (OT) No. 5889-1/19

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