ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 724

• Manufacturer Part Number: ATEVK1104
• Description: KIT DEV/EVAL FOR AVR32 AT32UC3A
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1104

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A3
• Data Bus Width: 32 bit
• Interface Type: USB, SPI, USART
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A3256
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

34.6.2
34.6.3
34.6.4
32058J–AVR32–04/11
Interpolation filter
Sigma Delta Modulator
Data Format
The interpolation filter interpolates from f
Comb filter, and the basic building blocks of this filter is a comb part and an integrator part.
This part is a 3rd order Sigma Delta Modulator consisting of three differentiators (delta blocks),
three integrators (sigma blocks) and a one bit quantizer. The purpose of the integrators is to
shape the noise, so that the noise is reduces in the band of interest and increased at the higher
frequencies, where it can be filtered.
Input data is on two’s complement format.
s
to 128f
s
. This filter is a 4th order Cascaded Integrator-
AT32UC3A
724