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零件编号 | YSS915 | ||
描述 | Karaoke Processor 2 for Video disc player | ||
制造商 | ETC | ||
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YSS915
Karaoke Processor 2 for Video disc player
(KP2V2)
INTRODUCTION
YSS915 (KP2V2) is an LSI for processing Karaoke voice signals.
This LSI has an A/D converter (1 channel) for the microphone echo, and a memory for the microphone echo and
key control. These features allow achieving the functions needed for the Karaoke system by using only one LSI
chip. As for the microphone echoes, many other types of echoes are available in addition to ordinary ones so that
YSS915 is applicable to various uses.
In addition to these Karaoke programs, YSS915 is able to provide the Movie & Music programs, with which the
surround effect is applied to the movie and music sources for giving the users more enjoyment.
YSS915 is pin compatible with and register compatible with YSS903 (KP2V).
FEATURES
[ Fundamental Functions ]
1) Karaoke program
• Key Control (Control by 50 cents in +/- 600 cent range, +/- one octave, etc.)
• Voice Cancel
Microphone Echo
• Normal microphone echo (174 msec or less (fs = 44.1 kHz))
• Stereo-Echo/ Reverb-Echo
• Microphone Key Control (+/- 10 cents, +/- 20 cents, +/- 400 cents, +/- 700 cents and +/- 1 octave)
• Microphone "YMERSION™"
Tone Control
• Bass, Mid-tone, Treble (0 to +/- 10 dB at 2 dB steps)
Surround
• "YMERSION™" (Yamaha's original wide surround technology)
2) Movie and music program
Surround
• Initial reflection sound synthesizing system
• Yamaha "YMERSION™"
Tone Control
• Bass, Mid-tone, Treble (0 to +/- 10 dB at 2 dB steps)
[ I/O Interface ]
• Digital signal inputs
: 2 channels (16/18/20/24 bits)
• Digital signal outputs : 2 channels (16/18/20/24 bits)
• Analog signal input
: 1 channel ( for the microphone )
• Microprocessor interface : Serial four line system
• Through-mode
: Digital input is outputted without any processing
(Correspond with fs = 96 kHz 24 bit DVD format)
[ Others ]
• Pin/register upper compatible with YSS903 (KP2V)
• Sampling frequency
: 32, 37.8, 44.1, 48 kHz or correspond with 96 kHz through-mode.
• Package
: 28 pin SOP ( YSS915-M )
YAMAHA CORPORATION
YSS915
CATALOGUE No:LSI-4SS915A2
1999.09
YSS915
4. Digital audio interface
SDSY, BCI,DI, L/R,DO,BCO
-1) Digital audio signal is inputted through BCI, SDSY and DI pins using the following format.
BCI
SDSY
DI(16bit )
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DI(18bit )
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DI(20bit )
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DI(24bit )
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Lch Rch
-2) Digital audio signal is outputted through BCO, L/R, and DO pins using the following format.
BCO
L/R
DO(16bit )
DO(18bit )
DO(20bit )
DO(24bit )
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Lch
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Rc h
-3) The digital audio interface is made compatible with the following format with OPR register ($00) and DAR register
($04).
Format
Format1
Format2
Format3
Format4
BCI
-
32-96fs
64fs
48fs
-
BCO
64fs
64fs
BCI
64fs
OPR
[5]
1
0
0
0
0
0
Format1
Use this format when digital audio input is not used.
DAR
[3:2]
*
0
1
2
3
*
MDR
[3]
0
0
Available
mode
N,E
N,E
0E
1E
N=KP2 standard mode
E=KP2V extended mode
Format2
Use this format when digital audio input is used.
BCI is able to accept any frequency between including 96fs from 32fs, while BCO outputs only 64 fs.
BCI, SDSY and DI signals must be synchronized with XI clock.
Format3
Use this format when digital audio input is used.
BCI input signal is passed to the BCO output, being inverted.
SDSY input signal is passed to the L/R output, being delayed by 2.5 clocks of BCI.
BCI, SDSY and DI signals must be synchronized with XI clock.
8
YSS915
1. Functions
Functions, default value and controllable mode are as shown below.
The default value is the value that is set at initial clear or the one obtained in other than the controllable mode.
-1) OPR($00): Control of internal operation
bit
Function
Default Controllable
mode
0 Unused (Set "1" here.)
1-
Controlling De-emphasis
"1" = De-emphasis is disabled.
1 "0" = De-emphasis is enabled.
1 N,E
Note ; Whenever DEPI is "H", de-emphasis is enable regardless of the status of
this bit.
2 Unused (Set "0" here.)
1-
Controlling soft mute
"1" = Soft mute is off (Fade-in at (1024/fs (sec))
3 "0" = Soft mute is on (Fade-out at (1024/fs (sec))
1 N,E
Note ; fs = sampling frequency (Hz)
Controlling internal accumulator output clear on/off
4 "1" = Internal accumulator output clear is on.
"0" = Internal accumulator output clear is off (Normal operation).
1 N,E
Controlling sync mode
5 "1" = Internal synchronization mode
1 N,E
(Digital audio input signals (BCI, SDSY and DI) are not used.)
"0" = External synchronization mode
(Digital audio input signals (BCI, SDSY and DI) are used.)
Selecting sampling frequency
‘b7 b6’
6 "0 0 " =37.8kHz
"0 1 " =44.1kHz
"1 0 " =32.0kHz
7 "1 1 " =48.0kHz
1 N,E
0E
Note ; The frequencies 32.0 kHz and 48.0 kHz are valid in KP2V extension mode.
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页数 | 30 页 | ||
下载 | [ YSS915.PDF 数据手册 ] |
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