CDK5560 Cirrus Logic Inc, CDK5560 Datasheet - Page 40

• Manufacturer Part Number: CDK5560
• Description: KIT - CDB5560 W/ Capture Plus II System
• Manufacturer: Cirrus Logic Inc
• Series: CapturePLUS™IIr

Specifications of CDK5560

• Number Of Adc's: 1
• Number Of Bits: 24
• Sampling Rate (per Second): 50k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±3 V
• Power (typ) @ Conditions: 90mW @ 2.5 V
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: CS5560
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1277; CDK5560-1

APPENDIX C. FFT WINDOW LEAKAGE
Windowing functions which are used to make FFT (Fast Fourier Transform) plots more informative also
generate a measurable error by spreading energy from the FFT signal peaks to the surrounding noise
floor. This results from an effect known as “window leakage”.
The following table lists the windowing functions and their associated peak signal losses that are used by
the Cirrus Logic CapturePlus II system.
40
Crystal 7 Term (Proprietary)
Hodie 5 Term (Proprietary)
Windowing Function
Rectangular
Peak Signal Loss
3.457 dB
4.203 dB
0 dB
Side Lobe Attenuation
125 dB
175 dB
0 dB
CapturePlus II
DS789UM2