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Details, datasheet, quote on part number:AD1817A
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Datasheet text preview:
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FEATURES Compatible with Microsoft PC 97 Logo Requirements Supports Applications Written for Windows® 95, Windows 3.1, Windows NT, SoundBlaster® Pro, AdLib®/OPL3® Stereo Audio 16-Bit Codec MPC Level-3 Mixer ISA Plug and Play Compatible 16-Bit Address Decode Dual Type F FIFO DMA Support MPU-401 Compatible MIDI Port Supports Wavetable Synthesizers
SoundPort®* Controller AD1817A
Integrated Enhanced Digital Game Port Integrated OPL3 Compatible Music Synthesizer Software & Hardware Volume Control Full-Duplex Capture and Playback Operation at Different Sample Rates 1 Hz Resolution Programmable Sample Rates from 5.7 kHz to 55.2 kHz ACPI Power Management Modes Operation from +5 V Supply Built-In 24 mA Bus Drivers 100-Lead PQFP Package PRODUCT OVERVIEW
AD1817A
DIGITAL VOLUME CONTROL
MIC LINE CD SYNTH PHONE_IN
0dB/ 20dB
SELECTOR
FORMAT
PGA
FIFO
16-BIT A/ CONVERTER
PLUG AND PLAY ISA BUS PARALLEL INTERFACE
RY NA AL I LIM NIC RE CH TA PE T DA
FUNCTIONAL BLOCK DIAGRAM
CLK MIDI_IN A-VOL DATA MIDI_OUT A_1 B_1
ANALOG VOLUME CONTROL E2PROM CONTROL SB PRO REGISTERS MPU-401 16-BIT A/ CONVERTER G A M G A M 16-BIT D/A CONVERTER ATTEN MUTE 16-BIT D/A CONVERTER M A
The AD1817A SoundPort® Controller is a single chip Plug and Play multimedia audio subsystem for concurrently processing
VOL_DN
VOL_UP
A_X
B_X
A_2
GAME PORT
B_2
A_Y
B_Y
DRQ (X) IRQ (X)
PC_D (7:0) PC_A (15:0) AEN (X)
G A M
L_OUT
MV
MUSIC SYNTHESIZER
PHONE_OUT
MV
FORMAT
R_OUT
MV
M
A
14.31818 MHz OSCILLATORS/CLOCK
G = GAIN A = ATTENUATE M = MUTE MV = MASTER VOLUME
XTALO
*SoundPort is a registered trademark of Analog Devices, Inc. All trademarks are the property of their respective holders.
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Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997
XTALI
FIFO
AD1817A
multiple digital streams of 16-bit stereo audio in personal computers. The AD1817A maintains full legacy compatibility with applications written for SoundBlaster Pro and AdLib, while servicing Microsoft PC 97 application requirements. The AD1817A includes an internal OPL3 compatible music synthesizer, an MPU-401 UART and a joystick interface with a built-in timer. The AD1817A on-chip Plug and Play routine provides configuration services for all integrated logical devices. Using an external E2PROM allows the AD1817A to decode up to three additional external user-defined logical devices such as modem and CD-ROM.
TABLE OF CONTENTS
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PIN FUNCTION DESCRIPTION . . . . . . . . . . . . . . . . . . 10 HOST INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ISA INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 AD1817A Chip Registers . . . . . . . . . . . . . . . . . . . . . . . . . 16 AD1817A Plug and Play Device Configuration Registers . . 16 Sound System Direct Registers . . . . . . . . . . . . . . . . . . . . . 18 Sound System Indirect Registers . . . . . . . . . . . . . . . . . . . 24 SB Pro; Adlib Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 33 MIDI and MPU-401 Registers . . . . . . . . . . . . . . . . . . . . . 33 Game Port Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 APPENDIX A. PLUG AND PLAY INTERNAL ROM . . . . . . . . . . . . . . 35 PLUG AND PLAY KEY and "ALTERNATE KEY" SEQUENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 USING AN EEPROM WITH THE AD1817A . . . . . . . . 37 AD1817A FLAG BYTES . . . . . . . . . . . . . . . . . . . . . . . . 37 USING THE AD1817A WITHOUT AN EEPROM . . . . 39 PIN MUXING IN THE AD1817A . . . . . . . . . . . . . . . . 39 PROGRAMMING EXTERNAL EEPROMS . . . . . . . . . 41 REFERENCE DESIGNS AND DEVICE DRIVERS . . . 41 OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figures
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Tables
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. PIO Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. PIO Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. DMA Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4. DMA Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 5. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 6. Reset Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 8. Typical Application Circuit . . . . . . . . . . . . . . . . . 42 Figure 9. AD1817A Frequency Response Plots . . . . . . . . . 43 Table I. Chip Register Diagram . . . . . . . . . . . . . . . . . . . . . Table II. Logical Devices and Compatible Plug and Play Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table III. Logical Device Configuration . . . . . . . . . . . . . . . Table IV. Sound System Direct Registers . . . . . . . . . . . . . . Table V. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . Table VI. Indirect Register Map and Reset/Default States . Table VII. Sound System Indirect Registers . . . . . . . . . . . . Table VIII. SoundBlaster Pro ISA Bus Registers . . . . . . . . . Table IX. AdLib ISA Bus Registers . . . . . . . . . . . . . . . . . . Table X. MIDI ISA Bus Registers . . . . . . . . . . . . . . . . . . . Table XI. Game Port ISA Bus Registers . . . . . . . . . . . . . . . Table XIII. AD1817A Pin Muxing . . . . . . . . . . . . . . . . . . . 16 17 17 18 22 25 26 33 33 33 34 39
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AD1817A
SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature Digital Supply (VDD) Analog Supply (VCC) Sample Rate (FS) Input Signal Frequency Audio Output Passband V IH V IL
25 5.0 5.0 48 1008 20 Hz to 20 kHz 5.0 0
°C V V kHz Hz V V
DAC Test Conditions 0 dB Attenuation Input Full Scale 16-Bit Linear Mode 100 k Output Load Mute Off Measured at Line Output ADC Test Conditions 0 dB Gain Input 3 dB Relative to Full Scale Line Input Selected 16-Bit Linear Mode
ANALOG INPUT
Parameter Full-Scale Input Voltage (RMS Values Assume Sine Wave Input) PHONE_IN, LINE, SYNTH, CD MIC with +20 dB Gain (MGE = 1) MIC with 0 dB Gain (MGE = 0) Input Impedance* Input Capacitance*
Min
Typ 1 2.83 0.1 0.283 1 2.83 17 15
Max
Units V rms V p-p V rms V p-p V rms V p-p k pF
PROGRAMMABLE GAIN AMPLIFIER--ADC
Parameter Step Size (0 dB to 22.5 dB) (All Steps Tested) PGA Gain Range Span
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Min Min
Typ 1.5 22.5
Max
Units dB dB
CD, SYNTH, MICROPHONE, INPUT ANALOG GAIN/ATTENUATORS/MUTE
Parameter CD, SYNTH, MIC Step Size: (All Steps Tested) +12 dB to 34.5 dB Input Gain/Attenuation Range PHONE_IN Step Size 0 dB to 45 dB: (All Steps Tested) Input Gain/Attenuation Range
Typ
Max
Units
1.5 46.5 3.0 45
dB dB dB dB
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3
AD1817A
DIGITAL DECIMATION AND INTERPOLATION FILTERS*
Parameter Audio Passband Audio Passband Ripple Audio Transition Band Audio Stopband Audio Stopband Rejection Audio Group Delay Group Delay Variation Over Passband
ANALOG-TO-DIGITAL CONVERTERS
Min 0 0 . 4 × FS 0 . 6 × FS 82
Typ
Max 0 . 4 × FS ± 0.09 0 . 6 × FS 12/FS 0.0
Units Hz dB Hz Hz dB sec µs
Parameter Resolution Signal-to-Noise Ratio (SNR) (A-Weighted, Referenced to Full Scale) Total Harmonic Distortion (THD) (Referenced to Full Scale) Audio Dynamic Range (60 dB Input THD+N Referenced to Full Scale, A-Weighted) Audio THD+N (Referenced to Full-Scale)
Min
Typ 16 82 0.011 79
Max 80 0.015 76.5
Units Bits dB % dB dB % dB dB dB dB dB dB % dB mV
Signal-to-Intermodulation Distortion* (CCIF Method) ADC Crosstalk* Line Inputs (Input L, Ground R, Read R; Input R, Ground L Read L) Line to MIC (Input LINE, Ground and Select MIC, Read ADC) Line to SYNTH Line to CD Gain Error (Full-Scale Span Relative to Nominal Input Voltage) Interchannel Gain Mismatch (Difference of Gain Errors) ADC Offset Error
DIGITAL-TO-ANALOG CONVERTERS
Parameter
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22 Min 79
79
82 76 82 95 95 95 95 0.019 74.5
80 80 80 80 ± 10 ±1 +15
Typ 16 83 0.006 85 82 0.013 78 95
Max 79 0.009 80.5
Units Bits dB % dB dB % dB dB % dB dB dB dB
Resolution Signal-to-Noise Ratio (SNR) (A-Weighted) Total Harmonic Distortion (THD) Audio Dynamic Range (60 dB Input THD+N Referenced to Full Scale, A-Weighted) Audio THD+N (Referenced to Full Scale) Signal-to-Intermodulation Distortion* (CCIF Method) Gain Error (Full-Scale Span Relative to Nominal Input Voltage) Interchannel Gain Mismatch (Difference of Gain Errors) DAC Crosstalk* (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT) Total Out-of-Band Energy (Measured from 0.6 × FS to 100 kHz at L_OUT and R_OUT)* Audible Out-of-Band Energy (Measured from 0.6 × FS to 20 kHz at L_OUT and R_OUT)*
MASTER VOLUME ATTENUATORS (L_OUT AND R_OUT, PHONE_OUT)
0.017 75.5 ± 10 ± 0.5 80 45 75
Parameter Master Volume Step Size (0 dB to 43.5 dB) Master Volume Step Size (43.5 dB to 46.5 dB) Master Volume Output Attenuation Range Span Mute Attenuation of 0 dB Fundamental* 4
Min
Typ 1.5 1.5 46.5
Max
Units dB dB dB dB REV. 0
80
AD1817A
DIGITAL MIX ATTENUATORS*
Parameter Step Size: Music, ISA Digital Mix Attenuation Range Span
ANALOG OUTPUT
Min
Typ 1.505 94.8
Max
Units dB dB
Parameter Full-Scale Output Voltage (at L_OUT, R_OUT, PHONE_OUT) Output Impedance* External Load Impedance* Output Capacitance* External Load Capacitance V REFX * VREFX Current Drive* VREFX Output Impedance* Mute Click (Muted Analog Mixers), Muted Output Minus Unmuted Output at 0 dB
SYSTEM SPECIFICATIONS*
Min
Typ 2.8
Max 570
Units V p-p k pF pF V µA k mV
10 15 2.10 2.25 100 6.5 ±5 100 2.40
Parameter
System Frequency Response Ripple (Line In to Line Out) Differential Nonlinearity Phase Linearity Deviation
STATIC DIGITAL SPECIFICATIONS
Parameter
High Level Input Voltage (VIH) XTALI Low Level Input Voltage (VIL) High Level Output Voltage (VOH), IOH = 8 mA Low Level Output Voltage (VOL), IOL = 8 mA Input Leakage Current Output Leakage Current
POWER SUPPLY
RY AL IN A IM IC EL HN PR EC TA T DA
Min Min 2 2.4 2.4 10 10 Min 4.75 4.75
Typ
Max 1.0 ±1 5
Units dB LSB Degrees
Typ
Max
Units V V V V V µA µA
0.8 0.4 +10 +10
Parameter Power Supply Range--Analog Power Supply Range--Digital Power Supply Current Power Dissipation Analog Supply Current Digital Supply Current ACPI Power-Down Modes D0 Analog Supply Current D0 Digital Supply Current D1 Analog Supply Current D1 Digital Supply Current D2 Analog Supply Current D2 Digital Supply Current D3 Analog Supply Current D3 Digital Supply Current Digital Power Supply Current--Power-Down Analog Power Supply Current--RESET Digital Power Supply Current--RESET Power Supply Rejection (100 mV p-p Signal @ 1 kHz)* (At Both Analog and Digital Supply Pins, Both ADCs and DACs) REV. 0 5
Typ
Max 5.25 5.25 221 1105 51 170
Units V V mA mW mA mA mA mA mA mA mA mA mA mA mA mA mA dB
47 120 20 20 10 18 0 6 24 0.2 10 40
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