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QS1532

器件型号:QS1532
厂商名称:Altonics
厂商官网:http://www.altonics.com
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器件描述

high quality PCM synthesizer LSI for General MIDI Sound Modules comparable

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QS1532
1. General Description
.
The 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
QS1532
3. Pin Rotation and Description
3- 1 Pin Rotation
A1
QS1532
DateCodeE
Package 81P CABGA
8 X 8mm Ball Pitch = 0.8mm
Ball diameter = 0.4mm
3- 2 Pin Description
PAD NAME
P_GND
F_WPB/ACC
F_RESET
P_V25
CLK_MODE
PAD Position
A1
A4
A5
B1
B2
I/O
P
I
I
P
I
DESCRIPTION
Internal PLL Analog Ground
NOR FLASH ACC pin( keep this pin ‘L’ level )
Internal NOR FLASH RESET
( must be connect to “RESETB(A2) )
Internal PLL Analog Power 2.5V
2X Clock Select
This pin is used to assign a clock source between 2x and
PLL mode. if this pin input low level PLL mode be selected.
In this mode, XIN is required 6Mhz.
Master Reset
Operates on active Low.
Power 3.3V
Parallel MIDI Ready
The parallel midi data input is valid at ‘H’ level.
This pin output ‘L’ When midi data is captures to inside.
DAC Data Width Select
18bit dac at ‘ L’ level and 16bit dac at ‘H’ level .
RESETB
V33
PMIDI_RY
DAC_SEL
A2
C5,D1
D6,G7
C3
C1
I
P
O
I
MIDI synthesizer with special effects and 32M sound font ROM
QS1532
PAD NAME
XOUT
XIN
V25
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
WRB
TEST
RESV
RESV
MIDI_IN
RESV
CSB
MCLK
DIN
SPDIF
RDOUT
FDOUT
BCLK
WCLK
PMIDI_SEL
GND
Test
Test
PAD Position
C2
D4
A3,F8,G8
E1
F2
F1
E2
F4
G4
F3
G2
E6
D5
B3
B4
E5
C8
D3
I9
I8
I5
H5
H6
I7
I6
C9
B8,E7,E9F9
G9,H9
C7
B7
I/O
I
I
P
I
I
I
I
I
I
I
I
I
I
I
I
I
O
I
O
I
O
O
O
O
O
I
P
I
I
MIDI Data Input FOR Single wire
( 31.25K bps)
Reserved for test( keep this pin open )
QS1532H2 Chip Select .
Data can be Written when input at ‘L’ level.
Serial Data System Clock out for CODAC.
Serial Data Input
SPDIF Output
Rear Serial Data Output
Front Serial Data Output
Serial Data Bit Clock
Serial Data Sample Rate Clock
Parallel MIDI selection
Serial MIDI interface at ‘L’ level Parallel MIDI interface at ‘H’level
Ground
Test pin for device ( keep this pin at “H” level with pull-up
resister of 10k ohms )
DESCRIPTION
The inverting output of XIN
Crystal Input ( when internal PLL is selected. XIN is 6Mhz )
Power 2.5V
Parallel MIDI data input[0] for MIDI
Parallel MIDI data input[1] for MIDI
Parallel MIDI data input[2] for MIDI
Parallel MIDI data input[3] for MIDI
Parallel MIDI data input[4] for MIDI
Parallel MIDI data input[5] for MIDI
Parallel MIDI data input[6] for MIDI
Parallel MIDI data input[7] for MIDI
Parallel MIDI Write Strobe
Test pin for device ( keep this pin at “H” level with pull-up
resister of 10k ohms )
Reserved for test( keep these pins at “L” level )
MIDI synthesizer with special effects and 32M sound font ROM
QS1532
3- 3. Pin out
1
A
P_GND
2
3
4
5
6
7
8
9
MRSTB
V25
F_WPB/ACC F_RESET
NC
NC
NC
NC
B
P_V25
CLK_MODE
RESV
RESV
NC
NC
TEST
GND
NC
C
DAC_SEL
XOUT
PMIDI_RY
NC
V33
NC
TEST
RESV
PMIDI_SEL
D
V33
NC
CSB
XIN
TEST
V33
NC
NC
NC
E
D0
D3
NC
NC
MIDI_IN
WRB
GND
NC
GND
F
D2
D1
D6
D4
NC
NC
NC
V25
GND
G
NC
D7
NC
D5
NC
NC
V33
V25
GND
H
NC
NC
NC
NC
RDOUT
FDOUT
NC
NC
GND
I
NC
NC
NC
NC
SPDIF
WCLK
BCLK
DIN
MCLK
TOP VIEW
MIDI synthesizer with special effects and 32M sound font ROM
QS1532
4. Application
4-1. Typical Hardware Configuration
< Usage with DAC Interface >
BCLK
MIDI_IN
31.25K bps
WCLK
QS1532
FDOUT
MCLK
16/18bit
D/AC
ROUT
LOUT
Pre-
AMP
AUDIO OUT
< Usage with CODEC Interface >
BCLK
DIN
MIDI_IN
31.25K bps
QS1532
WCLK
FDOUT
ROUT
LOUT
CODEC
Pre-
AMP
AUDIO OUT
MCLK
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

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