mic3002 Micrel Semiconductor, mic3002 Datasheet - Page 53

• Manufacturer Part Number: mic3002
• Description: Mic3002 Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
July 2007
Default Value
Serial Address
Byte Address
A write to OEMCFG1 will result in any A/D conversion in progress being aborted and the result discarded. The A/D will begin a
new conversion sequence once the write operation is complete. All bits in OEMCFG1 are non-volatile and will be maintained
through power and reset cycles. A valid OEM password is required for access to this register.
D[7]
D[6]
D[5]
D[4:2]
D[1]
D[0]
read/write
D[2:0]
D[3]
D[7]
INV
Bit(s)
VAUX[2:0]
INV
GAIN
BIASREF
RFB[2:0]
SRCE
SPOL
MODREF
read/write
GAIN
D[6]
and V BIAS .
Selects whether V MOD is
referenced to ground or V DD .
Selects the voltage reported in
VINh:VINl.
Inverts the APC op-amp inputs.
When set to “0” the BIAS DAC
output is connected to the “+”input
and FB is connected to the “–” input
of the op amp. Set to “0” to use the
ADC feedback loop.
Sets the feedback voltage range by
changing the APCDAC output
swing; 0-V
0-V
Selects whether FB and VMPD are
referenced to ground or V
selects feedback resistor termination
voltage (V
Selects internal feedback resistance.
(Resistors will be terminated to V
or GNDA according to BIASREF.)
V
Polarity of shutdown output, SHDN,
when active.
Function
BIAS
REF
source vs. sink drive.
/4 for electrical feedback.
read/write
BIASREF
DDA
REF
D[5]
or GNDA).
for optical feedback,
OEM Configuration Register 1 (OEMCFG1)
0000 0000 b = 00 h
A6 h
1 = 01 h
read/write
DD
RFB[2]
D[4]
and
DDA
1 = V DD ; 0 = GND; non-volatile.
000 = V IN ; 001 = V DDA ; 010 = V BIAS ; 011 = V MOD ;
100 = APCDAC; 101 = MODDAC; 110 = FLTDAC; non-
volatile
Operation
0 = emitter follower (no inversion);
1 = common emitter (inverted); read/write; non-volatile.
1 = V
0 = V
1 = V
000 = ∞;
001 = 800Ω,
010 = 1.6kΩ,
011 = 3.2kΩ,
100 = 6.4kΩ,
101 = 12.8kΩ,
110 = 25.6kΩ,
111 = 51.2kΩ;
read/write; non-volatile.
1 = source (NPN),
0 = sink (PNP); read/write; non-volatile.
1 = high;
0 = low; read/write; non-volatile.
read/write
53
RFB[1]
REF
REF
DD
D[3]
; 0 = GND; read/write; non-volatile.
/4 full scale;
full scale; read/write; non-volatile.
read/write
RFB[0]
D[2]
[e-mail]
read/write
SRCE
D[1]
or [phone]
read/write
M9999-073107-B
SPOL
D[0]
MIC3002