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LV1050M

Sanyo Semicon Device
Part Number LV1050M
Manufacturer Sanyo Semicon Device
Description Dolby Pro Logic Surround Decoder
Published Sep 24, 2005
Detailed Description Ordering number : ENN6628 LV1050M Bi-CMOS IC LV1050M Dolby Pro Logic Surround Decoder Overview The LV1050M is a Dolby...
Datasheet PDF File LV1050M PDF File

LV1050M
LV1050M

Overview
Ordering number : ENN6628 LV1050M Bi-CMOS IC LV1050M Dolby Pro Logic Surround Decoder Overview The LV1050M is a Dolby Pro Logic surround effect signal-processing Bi-CMOS IC that in addition to LV1018 and LA2787 function, realizes virtual surround processing with the use of 5.
1ch input signal.
This IC can implement a Dolby Pro Logic surround system and various digital surround system in just one chip.
• • • • • • • Functions and Features • • • • • • • • Pseudo-tap function.
Built-in input switch for the L, C, R, LS, RS, and LFE channels.
Virtual surround function (VDS 2 modes, VDD 1 mode).
Simulated surround function for Dolby Digital.
Input and output muting function.
Reference level : 300 mVrms.
Operating supply voltage : 8 to 10V.
Package : QIP80E.
• • Adaptive matrix.
Center mode control (Normal/Phantom/Wide).
4ch/3ch logic control.
Auto balance (ON/OFF).
Prologic off-mode (Bypass/Full Bypass).
On-chip memory (8k bit S-RAM).
Variable delay time.
Dolby surround mode : 15, 20, 25, or 30ms.
Simulated surround mode : 7.
5, 15, 20, 25, 30, 40 or 50ms.
Modified B type noise-reduction.
Center trim, surround trim (LS-ch, RS-ch) and LFE trim (0 to -31dB in -1dB steps).
Input and output filter.
Output : 7kHz L.
P.
F in dolby surround mode.
5kHz L.
P.
F in simulated surround mode.
Built-in VDD.
Simulated surround function.
Fixed matrix : L+R, L--R.
Front addition : 0, -2, -4 and -6 dB inverted and non inverted addition.
Reverb function.
Rear-channel monaural/stereo switching.
Rear addition : 0, -2, -4 and -6 dB inverted and noninverted addition .
Note : Dolby and Double D Symbol are registered trademarks of Dolby Laboratories Licensing Corporation.
This IC is available only to licensees of Dolby Laboratories Licensing Corporation.
San Francisco, C94103-4813, USA, from whom licensing and application information must be obtained.
Package Dimensions unit : mm 3174-QIP80E [LV1050M] 0.
8 1.
0 0.
8 0.
35 23.
2 20.
0 1.
6 • 41 64 65 0.
8 0.
15 40 • • 17.
2 14.
0 80 1.
6 25 ...


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