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| 型號： | AD73511 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low-Power CMOS Analog Front End with Flash based DSP Microcomputer(帶閃速DSP微計(jì)算機(jī)的單模擬前端) |
| 中文描述： | 低功耗CMOS模擬前端與閃存的DSP微機(jī)（帶閃速DSP的微計(jì)算機(jī)的單模擬前端） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 77K |
| 代理商： | AD73511 |
AD73511
a
Prelimnary Technical Data
REV. PrA 08/99
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, PO. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
Low-Power CMOS Analog Front End
wth Flash based DSP Mcrocomputer
DATA
Writable in pages of 128 bytes
Fast Page Write Cycle of 5 ms (typical)
TECHNCAL
FEATURES
AFE PERFORMANCE
16-Bit A/D Converter
16-Bit D/A Converter
Programmable Input/Output Sample Rates
77 dB ADC SNR
77 dB DAC SNR
64 kS/s Maximum Sample Rate
–90 dB Crosstalk
Low Group Delay (25
μ
s typ per ADC Channel,
50
μ
s typ per DAC Channel)
Programmable Input/Output Gain
On-Chip Reference
DSP PERFORMANCE
19 ns Instruction Cycle Time @ 3.3 Volts, 52 MIPS
Sustained Performance
AD73511-80
80K Bytes of On-Chip RAM, Configured as 16K Words
Program Memory RAM and 16K Words
Data Memory RAM
AD73511-40
40K Bytes of On-Chip RAM, Configured as 8K Words
Program Memory RAM and 8K Words
Data Memory RAM
FLASH Memory
64 kbytes
GE NE RAL D E SC RIPT ION
T he AD73511 is a single-device incorporating a single analog
front end, microcomputer optimized for digital signal
processing (DSP) and a FLASH based boot memory for the
DSP.
T he AD73511’s analog front end (AFE) section is suitable
for general purpose applications including speech and
telephony. T he AFE section features a 16-bit A/D converter
and a 16-bit D/A converter. Each converter provides 77 dB
signal-to-noise ratio over a
voiceband signal bandwidth.
T he AD73511 is particularly suitable for a variety of applica-
tions in the speech and telephony area including low bit rate,
high quality compression, speech enhancement, recognition
and synthesis. T he low group delay characteristic of the AFE
makes it suitable for single or multichannel active control
applications. T he A/D and D/A conversion channels feature
programmable input/ouput gains with ranges 38 dB and 21
dB respectively. An on-chip reference voltage is included
to allow single supply operation.
F UNC T IONAL BL OC K D IAGRAM
separate settings offering 64, 32, 16 and 8 kHz sampling rates
(from a master clock of 16.384 MHz) while the serial port
(SPORT 2) allows easy expansion of the number of I/O
channels by cascading extra AFEs external to the AD73511.
T he AD73511’s DSP engine combines the ADSP-2100
family base architecture (three computational units, data
address generators and a program sequencer) with two serial
ports, a 16-bit internal DMA port, a byte DMA port, a
programmable timer, Flag I/O, extensive interrupt capabilities
and on-chip program and data memory.
T he AD73511-80 integrates 80K bytes of on-chip memory
configured as 16K words (24-bit) of program RAM, and 16K
words (16-bit) of data RAM. T he AD73511-40 integrates
40K bytes of on-chip memory configured as 8K words (24-
bit) of program RAM, and 8K words (16-bit) of data RAM.
Both devices feature a Flash memory array of 64 kbytes (512
kbits) connected to the DSP’s byte-wide DMA port
(BDMA). T his allows non-volatile storage of the DSP’s boot
code and system data parameters. Power-down circuitry is
also provided to meet the low power needs of battery
operated portable equipment. T he AD73511 is available in a
119-ball PBGA package.
ADC
DAC
ADDRESS
BUS
BYTE DMA
CONTROLLER
EXDATA
BUS
FULMODE
SERIAL PORTS
SPORT 0
SHIFTER
MAC
ALU
ARITHMETIC UNITS
MEMORY
PROGRI/O
FAND
TIMER
ADSP-2100 BASE
ARCHITECTURE
PCONTROL
PROGRAM
DAG 2
GADATA
DAG 1
PROGRAM MEMORY ADDRESS
DATA MEMORY ADDRESS
PROGRAM MEMORY DATA
DATA MEMORY DATA
16K DM
(OPTIONAL
8K)
16K PM
(OPTIONAL
8K)
SPORT 1
SERIAL PORT
SPORT 2
REF
ANALOG FRONT END
SECTION
64FLASH
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