Specifications

DATA SHEET QF4A512
Rev D4, Dec 07 53 www.quickfiltertech.com
Default value = 8000
Description: Gain calibration value is written here.
5Ah – 5Fh – Reserved
The following registers implement similar functionality for the three remaining channels. Please refer to the descriptions above.
60h – 8Fh Channel 2 Registers (see 30h – 5Fh for functionality)
90h – BFh Channel 3 Registers (see 30h – 5Fh for functionality)
C0h – E9h Channel 4 Registers (see 30h – 5Fh for functionality)
12.8 Global Maintenance 2 Registers
Table 21. Control Register listing (Global Maintenance 2)
Hex* Register Name Description
EAh DIE_REV Metal Revision ID
EBh, ECh IGC_SEQADDR Extended Initialization Sequence Start Address
EDh CAL_CTRL Calibration Control
EEh, EFh CAL_DTGT Target Calibration Value
F0h DBG_TEST Factory Use Only
F1h - FFh Reserved
EAh DIE_REV – Read Only
Default value = C1
Description: Die revision.
EBh IGC_SEQADDR (Extended Initialization Sequence Start Address)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address EBh D7 D6 D5 D4 D3 D2 D1 D0
ECh IGC_SEQADDR (Extended Initialization Sequence Start Address)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address ECh X X X X D11 D10 D9 D8
Default value = F00h
Description: Starting address for an Extended Initialization Sequence (See Section 5.2).
EDh CAL_CTRL (Calibration Control)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address EDh X X X cal_srst cal_enab cal_gain_mode cal_chan_sel cal_chan_sel
cal_chan_sel
Description: Selects the channel to be calibrated.
cal_gain_mode
*0 = Offset calibration