adsp-21483 Analog Devices, Inc., adsp-21483 Datasheet - Page 3

• Manufacturer Part Number: adsp-21483
• Description: Sharc Processor
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
GENERAL DESCRIPTION
The ADSP-2148x SHARC
SIMD SHARC family of DSPs that feature Analog Devices'
Super Harvard Architecture. The processors are source code
compatible with the ADSP-2126x, ADSP-2136x, ADSP-2137x,
ADSP-2146x, and ADSP-2116x DSPs as well as with first gener-
ation ADSP-2106x SHARC processors in SISD (single-
instruction, single-data) mode. These new processors are 32-
bit/40-bit floating point processors optimized for high perfor-
mance audio applications with its large on-chip SRAM, multiple
internal buses to eliminate I/O bottlenecks, and an innovative
digital applications interface (DAI).
Table 1
processors.
offerings.
Table 2. ADSP-2148x Family Features
1
2
3
Feature
Maximum Instruction Rate
RAM
ROM
Audio Decoders in ROM
Pulse-Width Modulation
DTCP Hardware Accelerator
External Port Interface (SDRAM, AMI)
Serial Ports
Direct DMA from SPORTs to External Port
(External Memory)
FIR, IIR, FFT Accelerator
MLB Interface
IDP/PDAP
UART
DAI (SRU)/DPI (SRU2)
S/PDIF Transceiver
SPI
TWI
SRC Performance
Thermal Diode
VISA Support
Package
Audio decoding algorithms include Dolby AC-3 DTS 5.1, and Nueral Surround Decoder, MPEG-2 and AAC. Decoder/post-processor algorithm combination support varies
These products contain the Digital Transmission Content Protection protocol, a proprietary security protocol. Contact your Analog Devices sales office for more information.
The 100-lead packages of the ADSP-21483/21486/21488/ADSP-21489 processors do not contain an external port. And the ADSP-21486 processor in the 176-lead package
depending upon the chip version and the system configurations. Please visit www.analog.com for complete information.
does not contain a SDRAM controller.
shows performance benchmarks for the ADSP-2148x
3
Table 2
shows the features of the individual product
1
®
processors are members of the
2
ADSP-21483
–128 dB
4 Mbits
Rev. PrA | Page 3 of 66 | March 2010
Yes
3 Mbits
ADSP-21488
–140 dB
ADSP-21483/21486/21487/21488/21489
No
No
176-Lead LQFP EPAD
100-Lead LQFP EPAD
Table 1. Processor Benchmarks
1
Benchmark Algorithm
1024 Point Complex FFT (Radix 4, With Reversal) 23 μs
FIR Filter (per Tap)
IIR Filter (per Biquad)
Matrix Multiply (Pipelined)
[3 × 3] × [3 × 1]
[4 × 4] × [4 × 1]
Divide (y/×)
Inverse Square Root
Assumes two files in multichannel SIMD mode
Automotive Models Only
ADSP-21486
Yes (16-bit)
400 MHz
4 Mbits
4 Units
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
8
1
1
1
1
ADSP-21489
–128 dB
5 Mbits
No
No
ADSP-21487
176-Lead LQFP
Speed
(at 400 MHz)
1.25 ns
5 ns
11.25 ns
20 ns
7.5 ns
11.25 ns
4 Mbits
EPAD
Yes