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PDF QS1532 Data sheet ( Hoja de datos )
| Número de pieza | QS1532 | |
| Descripción | high quality PCM synthesizer LSI | |
| Fabricantes | Altonics | |
| Logotipo |  |
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QS1532
1. General Description
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T. he QS1532 is a high quality PCM synthesizer LSI for General MIDI Sound Modules comparable
to Roland's SC-xx series.
Its playback capability is provided by an internal MIDI handler that supports the full GS spec.
Equipped with the HWASS QPCM synthesizer, the QS1532 is capable of generating up to 48
polyphonics at various sample rates, and can also apply effects.
Two kinds of special effects are supported to improve the liveness and reality of the sound,
known as Reverb and Chorus in the General MIDI specification.
The QS1532 contains a delay memory of 32k words to implement these features, along with a
32Mbit sound font for GS.
MIDI data is received from the host via MIDI_IN, and are interpreted simultaneously with MIDI
messages by the MIDI handler.
Most of control parameters can be adjusted real time during the synthesis of the musical notes
according to the GS specification.
The QS1532 is the best solution to put at the heart of your designs for digital pianos,
karaoke machines, electric keyboards, and all other sorts of digital musical instruments.
2. Features
Up to 48 voices generated at 46.875 Khz
Built in MIDI handler
Supports Serial and Parallel interface for MIDI
4bit and 8bit ADPCM and 16bit PCM decoder
Fully Supports GS specification
Support for SPDIF digital out
Various sampling rate of 8 ~ 44.1Khz
Supports 16bit/18bit CODAC I/F
Full support for reverb and chorus function
3-Band Digital EQ
Low power operation voltage 2.7V ~ 3.3V
Super slim package 81 Ball BGA (8 X 8mm)
Internal PLL for generating low frequency main clock to prevent EMI : 6 Mhz
Built in 32M Sound Font ROM (MCP Stack)
Low power consumption of under 50uA in power down mode
Application
- High Quality Karaoke Machine
- High Performance Digital Piano
- Effect Module
- Arcade Game Machine for BGM(Back groud music)
- Electric Keyboard
MIDI synthesizer with special effects and 32M sound font ROM
1 page  
4. Application
4-1. Typical Hardware Configuration
< Usage with DAC Interface >
MIDI_IN
31.25K bps
QS1532
BCLK
WCLK
FDOUT
MCLK
16/18bit
D/AC
LOUT
ROUT
Pre-
AMP
QS1532
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AUDIO OUT
< Usage with CODEC Interface >
BCLK
DIN
MIDI_IN
31.25K bps
QS1532
WCLK
FDOUT
MCLK
CODEC
ROUT
LOUT
Pre-
AMP
AUDIO OUT
MIC INPUT
4-2. Recommended parallel interface
When selecting the parallel interface, the I/O pins CSB,WR,D7 to D0 are used as inputs to input midi data
and the PMIDI_RY are used as output to read the status of midi buffer in QS1532.
The parallel inferface becomes effective when the PMIDI_RY output at ‘H’ level. As this reason, The external
micom should have to check it before a midi data is written.
If the external micom couldn’t check its pin. the Twi( write pulse interval )time must have to longer than
40us to prevent midi buffer overlap. For the detail information refer to “5-1. AC/DC Characteristics”
4-3. Recommented Power circuit for QS1532
For prevent unstable reset from power niose, The bypass capacitor of 0.1uF should be placed on as near as
possible by QS1532. But the best solution to prevent it is that power of QS1532 supply after set on stable.
( Please refer to “Fig 1 Recommended power circuit” as next page )
MIDI synthesizer with special effects and 32M sound font ROM
5 Page 
6. Physical Dimensions
- Package Out Dimensions -
QS1532
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01
SYM
BOL
aaa
bbb
ccc
ddd
eee
fff
MILLIMETER
MIN NOM MAX
0.10
0.20
0.20
0.12
0.15
0.08
INCH
MIN NOM MAX
0.0039
0.0079
0.0079
0.0047
0.0059
0.0031
SYM
BOL
A
A1
A2
A3
D
D1
E
E1
e
b
ALL DIMENSIONS ARE IN MILLIMETERS
MILLIMETER
INCH
MIN NOM MAX MIN NOM MAX
--- --- 1.34 --- --- 0.0528
0.22 0.28 0.34 0.0087 0.0110 0.0134
0.92 0.96 1.00 0.0362 0.0378 0.0394
0.70 BASIC
0.0276 BASIC
7.90 8.00 8.10 0.3110 0.3150 0.3189
6.40 BASIC
0.2520 BASIC
7.90 8.00 8.10 0.3110 0.3150 0.3189
6.40 BASIC
0.2520 BASIC
0.80 BASIC
0.0315 BASIC
0.35 0.40 0.45 0.0138 0.0157 0.0177
MIDI synthesizer with special effects and 32M sound font ROM
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet QS1532.PDF ] | |
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