Specifications

DATA SHEET QF4A512
Rev D4, Dec 07 46 www.quickfiltertech.com
*0 = No overflow
1 = Overflow
Description: FIR, filter 1, input buffer overflow flag.
fir_outsat0
*0 = Not saturated
1 = Saturated
Description: FIR output saturation flag, filter 0.
fir_outsat1
*0 = Not saturated
1 = Saturated
Description: FIR output saturation flag, filter 1.
Configuration Registers
32h CH1_CFG (Channel configuration)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address 32h fir_0_0_bypass fir_0_1_enable fir_0_0_enable cic_0_bypass X chpc_calph0 chpc_inv0 aaf_freq0
aaf_freq
*0 = 0.5MHz
1 = 3MHz
Description: Anti-aliasing filter cutoff frequency select.
chpc_inv0
*0 = No invert
1 = Invert
Description: Inverts the input signal using the chopper circuit. Do not alter. – for factory use only
chpc_calph0
*0 = Default
1 = Use calibrated chopper phase
Description: Use calibrated chopper phase. Do not alter. – for factory use only
cic_0_bypass
0 = No bypass
*1 = Bypass
Description: Bypasses the CIC module. Do not alter. – for factory use only
fir_0_0_enable
0 = Disable
*1 = Enable
Description: Enable FIR operation, filter 0.
fir_0_1_enable
0 = Disable
*1 = Enable