ES1788 AudioDrive mixed-signal single-chip solution that adds 16-bit s

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ES1788 AudioDrive mixed-signal single-chip solution that adds 16-bit s

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ES1788 AudioDrive® Product Brief
ES1788 AudioDrive mixed-signal single-chip solution that adds 16-bit stereo sound music synthesis personal computers. includes embedded microprocessor, 20-voice ESFMmusic synthesizer, 16-bit stereo wave DAC, 16bit stereo music DAC, MPU-401 UART mode serial port, dual game ports, hardware master volume control, serial port interfaces external external wavetable music synthesizer, control logic with FIFO, inferface logic. There three stereo inputs (typically line, Audio, auxiliary line) mono microphone input internal preamp. this single chip that designed into motherboard, add-on card, integrated into other peripheral cards such Fax/Modem, VGA, LAN, I/O, etc. ES1788 AudioDrive® record, compress, play back voice, sound, music with built-in 6-channel mixer controls. Using high-performance channels, ES1788 supports full-duplex analog operation simultaneous record playback. ESFMsynthesizer extended capabilities within native mode operation providing superior sound power-down capabilities. ES1788 register compatible OPL3TM. MPU-401 serial port interfacing with external MIDI device. dual game port supports joysticks both having resistor value settings pushbutton switches. speaker volume modified software. software address selection modes allow motherboard Plug Play configuration. serial interface allows external take over resources. wavetable serial port allows ES1788 interface with either ES689 ES690 wavetables. address, DMA, interrupt selection controlled through system software. Advanced power management features include suspend/resume from disk host-independent self-timed power-down automatic wake-up. ES1788 AudioDrive® available industry-standard 100pin Plastic Quad Flat Pack (PQFP) package.
FEATURE HIGHLIGHTS
Single, high-performance, mixed-signal, 16-bit stereo VLSI chip digital audio High-quality, 20-voice ESFMmusic synthesizer; patents pending Patented ESPCM® compression
Record Playback Features
Record, compress, play back voice, sound, music Programmable sample rate from 44.1 record playback 3-button hardware volume control down, mute Mixer controlled record playback with programmable logarithmic volume controls
Inputs Outputs
MIDI serial port compatible with MPU-401 UART mode high-performance integrated dual game port Address decode joysticks Programmed demand transfer Software address mapping, selections motherboard Plug Play Wavetable serial port interface ES689/ES690 direct access music speaker input/output with volume control Serial port interface external optionally controls fullduplex analog operation
Mixer Features
6-channel stereo mixer inputs line, auxiliary audio), auxiliary digital audio (wave files), music synthesizer, plus mono channel mixer input microphone 4-channel record mixer with stereo inputs line, auxiliary audio), auxiliary plus mono input microphone Programmable 6-bit step) logarithmic master volume control
Power
APPLICATIONS
Advanced power management with self-timed power-down, automatic wake-up, suspend/resume from disk Supports operation
Audio Games Business Audio Multimedia Music Synthesis
Compatibility
Supports games Sound Blasterand Sound BlasterPro OPL3 synthesizers Supports Microsoft® WindowsTM, Windows NTTM, Windows WorkgroupsTM, Windows®95 Windows Sound System® Supports IBM® OS/2
BLOCK DIAGRAM
ANALOG
LINE_L LINE_R AUXA_L AUXA_R AUXB_L AUXB_R PCSPKI PCSPKO CMR,VREF
TYPICAL APPLICATION
ES1788
VDDD GNDD RESET IRQA IRQB IRQC IRQD IRQE DRQA DRQB DRQC DACKBA DACKBB DACKBC A[11:0] D[15:0] IORB IOWB VOLUP VOLDN MUTE PCSPKI EXTCLK **NOTE **NOTE **NOTE SCLK MCLK **NOTE AMODE VDDA GNDA AUXA_L AUXA_R AUXB_L AUXB_R LINE_L LINE_R
78L05 Regulator
7.5K 10µF
7.5K 10µF
RECORDING SOURCE INPUT VOLUME CONTROL
SWITCHED CAPACITOR LOW-PASS FILTER
OUTPUT VOLUME MUTE CONTROL RECORD MONITOR
AOUT_L AOUT_R FDXI FDXO
IRQ9 IRQ5 IRQ7 IRQ10
SPEAKER CNTRL ESFMFM MUSIC SYNTHESIZER
16-BIT STEREO GAME DAC/ADC STEREO PROGRAMMABLE MIXER
VDDA GNDA FOUT_L FOUT_R CIN_L CIN_R SE,DCLK DX,DR FSX,FSR MCLK
IRQ11,IRQ12,OR IRQ15(IRQ15 recommended)
16-BIT STEREO MUSIC
DRQ0 DRQ1 DRQ3 -DACK0 -DACK1 -DACK3
Left Right AuxB Left AuxB Right Line Left Line Right
VREF FOUT_L CIN_L FOUT_R CIN_R AOUT_L AOUT_R PCSPKO
SERIAL PORT WAVETABLE SERIAL PORT MPU-401 SERIAL PORT FIFOs DATA BUFFER WITH BYTE FIFO
.001 .001
VOLUP,VOLDN MUTE
HARDWARE VOLUME CONTROL DUAL GAME PORT TIMERS
SW(A-D) T(A-D)
Hardware Volume Front Panel Controls From Timer Chip 14.31818
DOWN MUTE
2.2K 2.2K 2.2K
Stereo Amplifier DB15S
CE,RSTB A[11:0] IRQ(A-E) DRQ(A-C) DACKB(A-C) IOWB,IORB RESET,AEN AMODE ENB245 GPO[1:0]
D[7:0]
PROGRAMMABLE CONTROLLER
2.2K 2.2K 2.2K 2.2K 2.2M
MICROPROCESSOR
CLOCK GENERATOR TIMER
SCLK EXTCLK
**NOTE **NOTE **NOTE **NOTE
SCLK disables internal oscillator (XI/XO) enables EXTCLK receive 14.32 clock from Bus. designs where interface used, recommended low. designs where ES689/ES690 serial interface used, recommended MCLK low. AMODE selects software address configuration methods. this example, Read-Sequence-Key method selected.
PINOUT
VDDD GNDD GNDD VDDD IOWB IORB PCSPKI IRQE IRQA IRQB IRQC IRQD DACKBA DRQA DACKBB DRQB DACKBC GNDD VDDD DRQC GPO0 MUTE VOLUP VOLDN GNDD VDDD EXTCLK SCLK RESET RSTB GPO1 DCLK MCLK
ES1788 AudioDrive
PCSPKO FDXO FDXI AOUT_R AOUT_L LINE_R LINE_L VREF CIN_R CIN_L VDDA EN1788 GNDA AUXA_R AUXA_L AUXB_R AUXB_L FOUT_R
VDDD GNDD ENB245 GNDD VDDD AMODE FOUT_L
ES1788
DIGITAL DESCRIPTIONS
Name VDDD GNDD VOLDN VOLUP MUTE GPO0 Description Digital supply voltage (3.0V 5.5V). Digital ground. Active-low volume decrease button input. Active-low volume increase button input. Active-low mute toggle button input. Output that external reset thereafter controlled port 2x7h. Available system software power management other applications. Output that high external reset thereafter controlled port 2x7h. Available system software power management other applications. MIDI serial input. Either MPU-401 SoundBlaster formats. Schmitt trigger input with internal pull-up resistor. MIDI serial data output. Active-high reset from bus. Inverted RESET output. Clock selection output: Clock from EXTCLK input Clock from crystal connection pins 14.32 clock input from bus. Duty cycle must 40%-60%. connection SCLK=1. Crystal oscillator output. Crystal oscillator input. connection SCLK=0. Input with internal pull-up. Active-high chip enable. When low, outputs become high impedance, forced high internally, thereby disabling activity to/from ES1788. Active-low read strobe from bus. Active-low write strobe from bus. Address inputs from bus. Address inputs from bus. ES1788 requires these pins address decodes. These pins have internal pull-down device enabled when input signal AMODE=0. this case they float(ES688 compatible designs). Active-low address enable from bus. Bidirectional data bus. These pins have weak pullup devices prevent these inputs from floating when driven. Active-low output when ES1788 being read written Intended connected enable control external 74LS245. Four (A,B,C,D) active-low joystick switch setting inputs. These pins have internal pullup resistor which pulled ground switch each joystick. joystick port typically address 201. Four (A,B,C,D) joystick timer pins. These pins connect positioning variable resistors joysticks. Input with pull-down device. ES1788 disabled following hardware reset must configured methods (optioned AMODE) software address selection: Read-Sequence-Key method System-Control-Register method Three (A,B,C) active-low acknowledge inputs from bus. MCLK DCLK PCSPKI DRQ(A-C) IRQE Name IRQ(A-D) Description Four (A,B,C,D) active-high interrupt requests bus. Unselected outputs high impedance. IRQs software configurable. Active-high interrupt request bus. Reserved MPU-401 hardware volume control. Three (A,B,C) active-high requests bus. Unselected outputs high impedance. When active, selected output pull-down device that holds line inactive unless another device that shares same line source enough current make line active. DRQs software configurable. Normally digital speaker signal input. This signal converted analog signal with volume control appears analog output PCSPKO. Input with internal pull-down. Frame sync receive data from external DSP. Programmable activehigh active-low. Input with internal pull-down. Frame sync transmit request from external DSP. Programmable active-high active-low. Input with internal pull-down. Serial data clock from external DSP. Typically 2.048 MHz. Input with internal pull-down. Data receive from external DSP. Tri-state output. Data transmit external DSP. High impedance when transmitting. Input with internal pull-down. Music serial data from external ES689 ES690 Wavetable Music Synthesizer. Input with internal pull-down. Music serial clock from external ES689 ES690 Wavetable Music Synthesizer. Input with internal pull-down. Active-high enable serial mode, i.e., enables external control analog resources ES1788 through serial interface.
GPO1
RESET RSTB SCLK
EXTCLK
IORB IOWB A[9:0] A[11:10]
DIGITAL CHARACTERISTICS
Symbol VIH1 VIH2 VOL1 Parameter Input high voltage: except GPI1 Input high voltage: GPI1 Input voltage Output voltage: except D[7:0], DRQx, IRQx Output high voltage: except D[7:0], DRQx, IRQx Output voltage: D[7:0], DRQx, IRQx Output high voltage: D[7:0], DRQx, IRQx Output voltage: Select DRQx when inactive VDDD active Unit Conditions VDDD=min VDDD=min VDDD=max IOL=4mA, VDDD=min IOH=-3mA, VDDD=max IOL=16mA, VDDD=min IOH=-12mA, VDDD=max IOL=0.8
D[7:0]
ENB245
SW(A-D)
VOH1
VOL2 VOH2 VOL3
T(A-D)
AMODE
ICC1
VDDD=max osc. rate 14.32 VDDA=max
DACKB(A-C)
ICC2
VDDA active
Product Brief
ANALOG DESCRIPTIONS
Name VDDA GNDA LINE_L, LINE_R AUXA_L, AUXA_R Description Analog supply voltage (4.5 Should greater than equal VDDD-0.3 Analog ground. Microphone input. internal pullup resistor CMR. Line inputs left right. LINE_L, LINE_R have internal pullup resistors CMR. Auxiliary inputs left right. AUXA_L, AUXA_R have internal pullup resistors CMR. Normally intended connection internal external CD-ROM analog output. Auxiliary inputs left right. AUXB_L, AUXB_R have internal pullup resistors CMR. Normally intended connection external music synthesizer other line-level music source. Normally connected internal resistor. programmed connect internal FOUT_R during serial mode. Input with internal pullup CMR. Alternate input left channel filter stage serial mode. Filter outputs left right. AC-coupled externally CIN_L, CIN_R remove offsets. These outputs have internal series resistors about ohms. Capacitors analog ground these pins used create low-pass filter pole that removes switching noise introduced switched-capacitor filters. Capacitive coupled inputs left right. These inputs have internal pull-up resistors approximately ohms. Reference generator resistor divider output. Should bypassed analog ground with capacitor. Buffered reference output. Should bypassed analog ground with µFelectrolytic capacitor with capacitor parallel. Line-level stereo outputs, left right. Analog output PCSPKI with volume control. Analog VDD.
ANALOG CHARACTERISTICS
Parameter Reference voltage Input impedance Pins CMR, VREF 2.25 Unit Volts (VDDA =5.0V) 100k Ohms
LINE_L, LINE_R, AUXA_L, AUXA_R, AUXB_L, AUXB_R, CIN_L, CIN_R
3.5k
6.5k
Ohms Ohms Ohms
Output impedance
FOUT_L, FOUT_R AOUT_L, AOUT_R load full-scale output range LINE_L, LINE_R, AUXA_L, AUXA_R, AUXB_L, AUXB_R AOUT_L, AOUT_R full-scale output range preamp
AUXB_L, AUXB_R
Input voltage range
VDDA -0.5 VDDA -1.0
mVp-p Volts
FDXO
Output voltage range Gain
Volts
FDXI FOUT_L, FOUT_R
MAXIMUM RATINGS
Rating Analog supply voltage Digital supply voltage Input voltage Operating temperature range Storage temperature range Symbol VDDA VDDD TSTG Value -0.3 -0.3 -0.3
CIN_L, CIN_R VREF
AOUT_L, AOUT_R PCSPKO EN1788
BUNDLED SOFTWARE DRIVERS
AudioRackBundled Drivers for: Microsoft Windows Microsoft Windows Workgroups Microsoft Windows Microsoft Windows95 OS/2
SERVICE SUPPORT
Evaluation Manufacturing Reference Design
U.S. Patent 4,214,125 others, other patents pending. specifications subject change without prior notice. ESPCM® AudioDrive® registered trademarks Technology, Inc. AudioRackis trademark Technology, Inc. other trademarks owned their respective holders. Document Number: SAM0067 REV:

ES1788 AudioDrive mixed-signal single-chip solution that adds 16-bit s

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