
LTC6909
19
6909fa
typicAl ApplicAtions
Combining Eight Outputs With a Lowpass Filter to Create a Sine Wave
LTC6909
249k
2.7V TO 5.5V
0.1F
1
16
15
14
13
12
11
10
9
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2
3
4
5
6
7
8
0.1F
100kHz
SINE WAVE
OUTPUT
787k
V+A
GND
PH0
PH1
OUT1
OUT2
OUT3
OUT4
SET
PH2
MOD
V+D
OUT8
OUT7
OUT6
OUT5
787k
402k
140k
80.6k
402k
140k
80.6k
LTC1563-2
LP
SA
NC
INVA
NC
LPA
AGND
V–
OPEN
16.2k
20k
21k
V+
LPB
NC
INVB
NC
SB
NC
EN
6909 TA04
500mV/DIV
2s/DIV
V+ = 5V
THD = 0.2%
6909 TA06