AD1812JS Analog Devices, AD1812JS Datasheet

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AD1812JS

Manufacturer Part Number
AD1812JS
Description
SoundPort Controller
Manufacturer
Analog Devices
Datasheet

Specifications of AD1812JS

Case
QFP
Dc
96+

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a
REV. 0
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.
FEATURES
Compatibility with:
16-Bit
MPC Level-2+ Mixer
Dual DMA/Full Duplex Operation
On-Chip FIFO Buffers
Sample Rates from 5.5 kHz to 50 kHz
ADPCM Compression/Decompression
Plug and Play Compliant
Compatible MIDI MPU-401 Port
Integrated Game Port
Free Supporting Software:
Power Management Modes
Operation from +5 V Supply
16-Bit Parallel Interface to ISA Bus
24 mA Bus Drive Capability
*Sound Blaster Pro is a trademark of Creative Labs, Ltd.
*AdLib is a trademark of AdLib Multimedia.
*Windows is a trademark and Microsoft is a registered trademark of
*Microsoft Corp.
SoundPort is a registered trademark of Analog Devices, Inc.
MONO I/O
Sound Blaster Pro*
AdLib*
Windows* Sound System
Windows 3.1 Driver
Windows 95 Driver
Control Applets
Diagnostics
MONO_IN
DACOUT
R_OUT
L_OUT
DACIN
AUX1
AUX2
LINE
MIC
Stereo Codec
AD1812
M
0dB/
20dB
OSCILLATORS
G
M
G
M
XTALI/O
G
M
G
M
M
G
G = GAIN/AMPLIFIER BLOCK
M = MUTE BLOCK
ATTN/
MUTE
ATTN
A_1
PGA
FUNCTIONAL BLOCK DIAGRAM
B_1
JOYSTICK/GAME PORT INTERFACE
CONVERTER
CONVERTER
CONVERTER
A_X
A/D
D/A
D/A
B_X
DIGITAL MIX
ATTENUATE
A_2
B_2
ROM
PRODUCT OVERVIEW
The AD1812 SoundPort® Controller is a single chip audio sub-
system for adding 16-bit stereo audio to personal computers.
The AD1812 is compatible with Sound Blaster Pro, AdLib, and
the Microsoft* Windows Sound System. The AD1812 provides
an integrated audio solution for enhanced business audio, enter-
tainment sound effects, and multimedia applications.
The AD1812 audio subsystem combines an integrated digital
audio controller, a powerful signal processor, a mixer, and a
16-bit
dows Sound System register set, music synthesis hardware, an
MPU-401 compatible UART interface, a game port (with
timer), and a Plug and Play ISA interface are all contained on
chip. The on-chip Plug and Play (PnP) routine provides con-
figuration services for the internal logical devices and an exter-
nal modem chipset.
The AD1812 can record compress and playback voice, sound
and music. The system provides all PC 95 audio conversion and
compatibility requirements for a multimedia enabled PC.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
ADSP-2171
FORMAT
FORMAT
A_Y
RAM
B_Y
stereo codec. The DOS games register set, the Win-
FIFO
FIFO
MIDI _IN
MPU-401 UART
REGISTER
REGISTER
GAME
WSS
SET
SET
&
MIDI _OUT
SoundPort Controller
INTERFACE
REGISTERS
PARALLEL
REGISTERS
CONTROL
PLUG
PLAY
BUS
AND
© Analog Devices, Inc., 1996
MODEM_IRQ
MODEM_SEL
DRQ (0, 1, 3, 5, 6, 7)
IRQ (3, 4, 5, 7, 9, 10, 11, 12)
PC_A (15:0)
AEN
DACK (0, 1, 3, 5, 6, 7)
IOR
IOW
SBHE
IO_CH16
PWRDWN
PC_D (15:0)
PnP
AD1812
(continued on Page 12)
Fax: 617/326-8703

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AD1812JS Summary of contents

Page 1

... AUX2 DACIN DACOUT REV. 0 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. ...

Page 2

AD1812–SPECIFICATIONS STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED Temperature 0 Digital Supply (V ) 5.0 DD Analog Supply (V ) 5.0 CC Sample Rate ( Input Signal 1008 Analog Output Passband kHz V 2.0 ...

Page 3

ANALOG-TO-DIGITAL CONVERTERS Parameter Resolution Dynamic Range (–60 dB Input THD+N Referenced to Full Scale, A-Weighted) THD+N (Referenced to Full Scale) Signal-to-Intermodulation Distortion* (CCIF Method) ADC Crosstalk* Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L) ...

Page 4

AD1812 ANALOG OUTPUT Parameter Full-Scale Output Voltage Output Impedance* External Load Impedance Output Capacitance* External Load Capacitance V REF V Output Impedance REF Mute Click (Muted Output Minus Unmuted Midscale DAC Output)* ...

Page 5

TIMING PARAMETERS (GUARANTEED OVER OPERATING TEMPERATURE RANGE) Parameter IOW/IOR Strobe Width IOW/IOR Rising to IOW/IOR Falling Write Data Setup to IOW Rising IOR Falling to Valid Read Data AEN Setup to IOW/IOR Falling AEN Hold from IOW/IOR Rising Adr Setup ...

Page 6

AD1812 Table I. Codec Transfer 16-Bit Interface, No Byte Swap (P/CINF8 = 0, P/CBSW = 0)* Format Word 1 (16-Bit) MSB Mono, 16-Bit Upper 8 Bits of Sample 1 Little Endian Left Channel Stereo, 16-Bit Upper 8 Bits of Sample ...

Page 7

Table II. Codec Transfer 16-Bit Interface with Byte Swap (P/CINF8 = 0, P/CBSW = 1)* Format MSB Mono, 16-Bit Lower 8 Bits of Sample 1 Little Endian Left Channel Stereo, 16-Bit Lower 8 Bits of Sample 0 Little Endian Right ...

Page 8

AD1812 Table III. Codec Transfer 8-Bit Interface (P/CINF8 = 1)* Format Byte 3 MSB LSB Mono, 16-Bit Upper 8 Bits of Sample 1 Little Endian Left Channel Stereo, 16-Bit Upper 8 Bits of Sample 0 Little Endian Right Channel Mono, ...

Page 9

... V 10 0.3 V Temperature 0.3 V Model Range DD +70 C AD1812JS +70 C +150 C AD1812JST +70 C PQFP AND TQFP PIN LOCATIONS AD1812 TOP VIEW PINS DOWN (Not to Scale) –9– AD1812 ORDERING GUIDE Package Package Description Option 160-Lead PQFP S-160 160-Lead TQFP ST-160 WARNING! ...

Page 10

AD1812 PIN DESCRIPTION Parallel Interface Pin Name P/TQFP PC_D[15:0] 128–131, 136–139, 142–145, 150–153 IRQ(x) 108–115 DRQ(x) 98–103 PC_A[15:0] 8–15, 18–25 AEN 32 DACK (x) 84–85, 87–90 IOR 26 IOW 33 SBHE 7 IOCH16 97 RESET 35 RESET 119 Analog Signals ...

Page 11

Modem Interface Signals Pin Name P/TQFP MODEM_IRQ 38 MODEM_EN 39 MODEM_SEL 118 Game Port Pin Name P/TQFP A_1 41 A_2 42 A_X 46 A_Y 47 B_1 43 B_2 44 B_X 48 B_Y 49 MIDI Interface Signals Pin Name P/TQFP MIDI_IN ...

Page 12

AD1812 Power Supplies Pin Name P/TQFP V 51, 61 GNDA 52, 62 17, 28, 91, DD 94, 104, 107, 116, 126, 132, 135, 140, 146, 149, 154 GNDD 5, 16, 27, 34, 82, 83, 86, ...

Page 13

... Sound Blaster ADPCM. MUSIC SYNTHESIZER EMULATION The AD1812 includes an embedded signal processor based on Analog Devices’ 16-bit fixed-point digital signal processor fam- ily. All DSP instructions are ROM coded internally. The EuSynth-1+ music synthesis algorithm running on the signal processor emu- lates the functions of industry standard OPL3 FM synthesizer chips and delivers 20 voice polyphony ...

Page 14

AD1812 Table VIII. Windows Sound System, Logical Device Number = 0 Register Name Address Type Activate 0x30 Read/Write Activates device. I/O Range Check 0x31 Read/Write Performs conflict check I/O Port Base 0x60 Read/Write I/O Base [15:8]. Address 0x61 Read/Write I/O ...

Page 15

Table XIV. Codec Power-Down Modes Mode Powered-Down Blocks Total Power Down ADC, DAC, Mixer, Reference Standby ADC, DAC, Mixer Mixer Power Down DAC, Mixer Mixer Only ADC, DAC ADC Power Down ADC DAC Power Down DAC The registers found in ...

Page 16

AD1812 A detailed map of all direct and indirect register contents is summarized for reference as follows: Table XVIII. Codec Direct Registers (16-Bit Interface) Direct Address Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 ...

Page 17

... MNP classes 2, 3, and 4), and data compression (V.42bis and MNP class 5). Reference designs can also be found in the AD1812 SoundPort Controller Technical Reference which can be obtained by contacting your local Analog Devices sales repre- sentative or authorized distributor. You can also find us on the World Wide Web at http://www.analog.com. ...

Page 18

AD1812 INDEX FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 19

REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 160-Lead PQFP (S-160) 1.239 (31.45) 1.219 (30.95) 0.160 (4.07) MAX 1.107 (28.10) 1.100 (27.90 120 121 4 4 ...

Page 20

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