Datasheet

LTC1099
13
TYPICAL APPLICATIONS
U
0001 0000
0002 0032 AORG >32
0003 0032 CE01 DINT Disable Interrupts
0004 0033 C800 LDPK >00 Data Page Pointer Is 0
0005 0034 8064 LOOP IN 100,PAO Input 1099 Data to Address 100
0006 0035 CB13 RPTK 12 Repeat Next Instruction 12 Times
0007 0036 5500 NOP Don’t Convert Again Too Soon
0008 0037 FF80 B LOOP Go for Another Conversion
TMS320C25 Assembly Code for RD Mode Interface to LTC1099
V
IN
DB0
DB1
DB2
DB3
WR/RDY
MODE
RD
INT
GND
V
CC
TC
OFL
DB7
DB6
DB5
DB4
CS
REF
+
REF
–
V
CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
A0
A1
A2
IS
A3
D4
D5
D6
D7
D0
D1
D2
D3
A
B
C
G2A
G2B
G1
Y7
GND
5V
C1 C2
C1 C2
LTC1099
+
+
10k
5V
5V
(6)
(B8) (C10) (H10)
(4)
(5)
(3)
(1)
(2)
READY
MSC
STRB
V
SS
V
CC
TMS320C25
(B1, K11, L2)
(A10, B11, H2, L6)
(K1)
(K2)
(L3)
(J11)
(K3)
(D1)
(C2)
(C1)
(B2)
(F1)
(E2)
(E1)
(D2)
ANALOG
INPUT
VOLTAGE
1/2 74AS00
5V
1099 TA03
C1 = 4.7µF TANTALUM
C2 = 0.1µF CERAMIC
74AS138
TMS320C25 Interface Using RD Mode