SPPDM-01 Datasheet, PDF (1/4 Pages) Frequency Devices, Inc. – Dual Channel, Differential Input FIR Filter Platform

SPPDM-01
DSP Solutions
with Analog Input/Output
Dual Channel, Differential Input
FIR Filter Platform
Description
Design engineers now have an off-the-shelf
precision, dual channel hardware solution for
development of digital FIR filters that can be used
in production subassemblies. Designers can
generate FIR filter characteristics in a MatLab^TM
V5.3 or V6.0 environment and directly load
standard or custom coefficient sets into the
SPPDM-01 platform via an RS232 interface
located on the users field programmable
subassembly or from the SPPDB-01 development
board.
By utilizing the SPPDF-01 hardware with the
enclosed MatLab GUI, generated coefficients are
loaded directly into the removable SPPDM-01
platform for insertion into finished EOEM
products. This unique capability minimizes
product development and manufacturing cycle
times while providing precise unit-to-unit product
matching in a small 2” x 2” footprint that can be
reconfigured or upgraded in the field.
SPPDM-01 Platform
Analog I/O
+
_
Analog
Filters
+
_
ADC / DAC
Converters
∑∆
A/D
Digital
Filters
∑∆
A/D
∑∆
D/A
DSP
10 wire digital
input bus
Program
memory
EE-Prom
Digital
Signal
Processor
Flash
memory
(coefficients)
SPPDM-01 FIR filter platforms operates over a
100 Hz to 20 kHz audio frequency range. Each
channel can be configured to provide up to 9-bits
of filter frequency programmability per channel.
This dual channel DSP design solution contains
anti-alias and reconstruction filters along with
ADC’s and DAC’s offering low noise and distortion
signal processing with THD approaching –100 dB.
Sampling at 48 kHz the fixed point DSP utilizes
32-bit math to achieve 24-bits of precision.
Features/ Benefits:
• Compact 2” x 2” dual channel design
combined with large program memory (256 k
EE-Prom) and 4-Mbits of flash memory
optimizes DSP processing power in minimal
board space.
• SPPDB-01 development hardware offers rapid
set-up, programming and performance
evaluation, shortening the product
development cycle while insuring high
precision field programmable installation.
• Field programmability of coefficient sets,
analog I/O and storage for 100’s of application
specific FIR filters provide designers with
unmatched design, implementation and field
upgrade flexibility.
∑∆
D/A
SPPDM-01 Block diagram
3 wire digital
output bus
Applications
• Brick-Wall; High-Pass, Low-Pass, Band-Pass,
Band-Reject and Multi-Rate filters with Linear
Phase and Signal Generators for Data
Acquisition Systems.
• Speech analysis, research, pathology
• Sound and vibration testing
OTHER AVAILABLE PLATFORM PRODUCTS
SPP-01: Plug and play hardware/evaluation board,
programmable with turnkey or customer generated
algorithms.
SPPDB-01: Development Board, for the SPP-01
family of products. May also be used as a mounting
assembly.
SPPDS-01: Development Suite for all SPP platform
products. Requires TI’s Code Composer Studio^TM.
SPPDF-01: Development Suite for SPPDM-01 FIR
filter products. Requires MatLab^TM V5.3 or V6.0.
1
25 Locust St., Haverhill, Massachusetts 01830 • Tel: [phone] • FAX:[phone]
e-mail: [e-mail] • Web Address: http://www.freqdev.com