ISL29501 Datasheet, PDF (18/23 Pages) Intersil Corporation – Auto gain control mechanism

Register Map (Continued)
ADDR
0x19
REGISTER NAME
AGC Control
ACCESS
RW
DEFAULT
0x22
SECTION 0.4A: CLOSED LOOP CALIBRATION REGISTERS
0x24
Crosstalk I
Exponent
RW
0x00
0x25 Crosstalk I MSB
RW
0x00
0x26 Crosstalk I LSB
RW
0x00
0x27
Crosstalk Q
Exponent
RW
0x00
0x28 Crosstalk Q MSB
RW
0x00
0x29 Crosstalk Q LSB
RW
0x00
0x2A
Crosstalk Gain
MSB
RW
0xFF
0x2B
Crosstalk Gain
LSB
RW
0x00
0x2C
Magnitude
Reference Exp
RW
0x00
0x2D
Magnitude
Reference MSB
RW
0x00
0x2E
Magnitude
Reference LSB
RW
0x01
0x2F Phase Offset MSB RW
0x00
BIT(S)
BIT NAME
2 min_vga1_exp[2:0]
4 min_vga2_exp[2:0]
7:0 i_xtalk_exp[7:0]
7:0 i_xtalk[15:8]
7:0 i_xtalk[7:0]
7:0 q_xtalk_exp[15:8]
7:0 q_xtalk[15:8]
7:0 q_xtalk[7:0]
7:0 gain_xtalk[15:8]
7:0 gain_xtalk[7:0]
3:0 mag_ref_exp[3:0]
7:0 mag_ref[15:8]
7:0 mag_ref[7:0]
7:0 phase_offset[15:8]
0x30 Phase Offset LSB
RW
0x00
7:0 phase_offset[7:0]
SECTION 0.4B: AMBIENT LIGHT AND TEMPERATURE CORRECTIONS
0x31
Temperature
Reference
RW
0x00
7:0
0x33 Phase Exponent
RW
0x00
3:0
0x34
Phase
Temperature B
RW
0x00
7:0
0x36 Phase Ambient B
RW
0x00
7:0
0x39
Phase
Temperature A
RW
0x00
7:0
0X3B Phase Ambient A
RW
0x00
7:0
ol_temp_ref[7:0]
ol_phase_co_exp[3:0]‘
ol_phase_temp_B[7:0]
ol_phase_amb_B[7:0]
ol_phase_temp_A[7:0]
ol_phase_amb_A[7:0]
FUNCTION
COMMENT
Set VGA1 minimum
Set VGA2 minimum
Set minimum allowed value of VGA1
Set minimum allowed value of VGA2
Crosstalk I channel exponent
Unsigned 8-bit exponent
Crosstalk I channel MSB
Crosstalk I channel LSB
Crosstalk Q channel exponent
Signed 16-bit mantissa
Unsigned 8-bit exponent
Crosstalk Q channel MSB
Crosstalk Q channel LSB
Crosstalk gain MSB
Signed 16-bit mantissa
Unsigned 16-bit integer
Crosstalk gain LSB
Magnitude reference exponent
Unsigned 4-bit exponent
Magnitude reference significant Unsigned 16-bit integer
Fixed distance offset calibration
MSB
Fixed distance offset calibration
LSB
Unsigned 16-bit integer
Temperature reference
Reference for temperature correction
Correction exponent
Temperature correction
coefficient B
Ambient correction coefficient B
Temperature correction
coefficient A
Ambient correction coefficient A
Unsigned 4-bit exponent for all corrections
Equation format Ax²+Bx+C
Equation format Ax²+Bx+C
Equation format Ax²+Bx+C
Equation format Ax²+Bx+C