LTC1400
U
TYPICAL APPLICATIO S
LTC1400 Interface to ADSP2181’s SPORT0 (Frame Sync is Generated from RFS0)
ADSP2181
SCLKO
5V
1
2
6
7
CLK
V
A
CC
IN
UNIPOLAR
INPUT
+
CONV
LTC1400
RFSO
DR0
10µF
0.1µF
3
5
V
V
D
REF
OUT
+
GND
SS
8
0.1µF
10µF
4
1400 TA05a
Logic Analyzer Waveforms Show 2.88μs Throughput Rate (Input Voltage = 2.240V, Output Code = 1000 1100 0000 = 2240 )
10
Data from LTC1400 (Normal Mode)
X
D10 D9
D7 D6 D5 D4 D3
D2
D1 D0
X
X
RDY D11
D8
1400 TA05c
Data Stored in ADSP2181’s Memory (Normal Mode, SLEN = D)
0
RDY D11
D10
D9 D8 D7 D6 D5
D4
D3 D2 D1
D0
0
0
1400 TA05d
1400fa
16