Datasheet

11
1605fc
LTC1605
Figure 11. LTC1605 Nonaveraged 4096 Point FFT Plot
APPLICATIONS INFORMATION
WUU
U
ACQUIRE CONVERT ACQUIRE
DATA
VALID
t
1
t
10
t
10
t
1
t
10
t
10
t
3
t
6
t
4
t
CONV
t
12
t
7
HI-ZHI-Z
R/C
BUSY
CS
MODE
DATA BUS
1605 • F09
Figure 9. Using CS to Control Conversion and Read Timing
FREQUENCY (kHz)
–130
–120
–100
–110
–80
–90
–20
–40
–60
0
–30
–50
–70
–10
MAGNITUDE (dB)
1605 • F11
0 5 10 15 20 25 30 35 40 45 50
f
SAMPLE
= 100kHz
f
IN
= 1kHz
SINAD = 87.5dB
THD = –101.7dB
Figure 10. Using CS and BYTE to Control Data Bus Read Timing
t
10
t
10
t
12
t
7
t
12
HI-Z
HI-Z
HI-Z
HI-Z
HIGH BYTE
LOW BYTE
LOW BYTE
HIGH BYTE
R/C
BYTE
CS
PINS 6 TO 13
PINS 15 TO 22
1605 • F03