
12. Analog comparator and OP-AMP
MC97F6108A User’s manual
128
12.2
Block diagram
+
-
+
-
-
+
<option>
15/50VDD , 25/50VDD
17/50VDD , 26/50VDD
19/50VDD , 27/50VDD
20/50VDD , 28/50VDD
21/50VDD , 29/50VDD
22/50VDD , 31/50VDD
23/50VDD , 33/50VDD
24/50VDD , 35/50VDD
<option>
1/50VDD
2/50VDD
3/50VDD
4/50VDD
5/50VDD
6/50VDD
8/50VDD
10/50VDD
Sync signal
x2.5
x3
x3.53
x4
x4.62
x5
x8
x10
-
+
<option>
20/50VDD , 28/50VDD
21/50VDD , 29/50VDD
22/50VDD , 30/50VDD
23/50VDD , 32/50VDD
24/50VDD , 34/50VDD
25/50VDD , 36/50VDD
26/50VDD , 38/50VDD
27/50VDD , 40/50VDD
by pass
0.3 us
0.6 us
1.2 us
<option>
20/50VDD , 28/50VDD
21/50VDD , 29/50VDD
22/50VDD , 30/50VDD
23/50VDD , 32/50VDD
24/50VDD , 34/50VDD
25/50VDD , 36/50VDD
26/50VDD , 38/50VDD
27/50VDD , 40/50VDD
+
-
CMPOSL[2:0]
PPG
Control ppgo
CIENAB[1]
CMP0_IN_P
CMP0_IN_N
CMP1_IN_P
AMP1I
AMP2O
CMP2_IN_P
CMPXO
AN7
AN6
AN5
AN4
AN3
AN2
CMP4
AMP2
Voltage
divider
PPGMD
PPGO
CIEDGE[1]
CIPOLA[1]
CIBOTH[1]
C1_FLAG
CMP1IF
CFEDGE[0]
CFPOLA[0]
CFBOTH[0]
CMP0IF
INT6
IE1.1
C0_FLAG
CIENAB[4]
CIEDGE[4]
CIPOLA[4]
CIBOTH[4]
C4_FLAG
INT10
CMP4IF
(T0CAP0)
capture2
capture1
CFEDGE[4]
CFPOLA[4]
CFBOTH[]
CFEDGE[1]
CFPOLA[1]
CFBOTH[1]
CIEDGE[0]
CIPOLA[0]
CIBOTH[0]
CMP1
CMP0
CMP3
CMP2
AMP1
C3DBSEL[1:0]
by pass
0.3 us
0.6 us
1.2 us
C0DBSEL[1:0]
by pass
0.3 us
0.6 us
1.2 us
C1DBSEL[1:0]
4 us
8 us
16 us
32 us
C4DBSEL[1:0]
by pass
0.3 us
0.6 us
1.2 us
C2DBSEL[1:0]
CFENAB[4]
IE1.4
CFENAB[1]
CFENAB[0]
CIENAB[0]
CIEDGE[3]
CIPOLA[3]
CIBOTH[3]
C3_FLAG
INT9
IE.5
CMP3IF
CFEDGE[3]
CFPOLA[3]
CFBOTH[3]
CIENAB[3]
CFENAB[3]
INT7
IE1.1
CIEDGE[2]
CIPOLA[2]
CIBOTH[2]
C2_FLAG
CMP2IF
CFEDGE[2]
CFPOLA[2]
CFBOTH[2]
CIENAB[2]
CFENAB[0]
INT8
IE1.2
4 us
2 us
8 us
by pass
PPGO3DB[1:0]
PPGO on/off-time detect
x1
x1.5
x2
x2.5
x3
x4
x5
x6
Control ppgo
Change
period
C4OUTINV
0
1
C1OUTINV
0
1
C0OUTINV
0
1
C3OUTINV
0
1
C2OUTINV
0
1
ADC
AN1
AN0
Figure 59. Analog Comparator and OP-AMP Block Diagram