Datasheet

4
LTC1569-7
TYPICAL PERFOR A CE CHARACTERISTICS
UW
THD vs Input Voltage
THD vs Input Frequency
INPUT VOLTAGE (V
P-P
)
0
1 2 3 45
THD (dB)
1569-7 G02
–50
–60
–70
–80
–90
f
IN
= 10kHz
f
CUTOFF
= 128kHz
IN
+
TO OUT
R
EXT
= 10k
PIN 5 AT V
–
V
S
= 5V
PIN 3 = 2V
V
S
= 3V
PIN 3 = 1.11V
INPUT FREQUENCY (kHz)
020
10 30 50 70 9040 60 80 100
THD (dB)
1569-7 G01
–68
–70
–72
–74
–76
–78
V
IN
= 1.5V
P-P
f
CUTOFF
= 128kHz
IN
+
TO OUT
R
EXT
= 10k
PIN 5 AT V
–
V
S
= 5V
PIN 3 = 2V
FREQUENCY (kHz)
5
LOG MAG (10dB/DIV)
10
–90
10 100 1000
1569-7 G03
V
S
= 3V
f
C
= 128kHz
R
EXT
= 10k
PIN 5 AT V
–
FREQUENCY (kHz)
1
GAIN (dB)
DELAY (µs)
1
0
–1
–2
–3
–4
20
19
18
17
16
15
14
13
12
11
10
10 100
1569-7 G04
V
S
= 3V
f
C
= 128kHz
R
EXT
= 10k
PIN 5 AT V
–
Gain vs Frequency
Passband Gain and Group Delay
vs Frequency
f
CUTOFF
(kHz)
1
I
SUPPLY
(mA)
10 100 1000
1569-7 G05
12
11
10
9
8
7
6
5
4
DIV-BY-16
DIV-BY-4
DIV-BY-1
EXT CLK
f
CUTOFF
(kHz)
1
I
SUPPLY
(mA)
10 100 1000
1569-7 G06
23
21
19
17
15
13
11
9
7
5
DIV-BY-16
DIV-BY-4
DIV-BY-1
EXT CLK
5V Supply Current
3V Supply Current
f
CUTOFF
(kHz)
1
I
SUPPLY
(mA)
10 100 1000
1569-7 G07
35
32
29
26
23
20
17
14
11
8
5
DIV-BY-16
DIV-BY-4
DIV-BY-1
EXT CLK
± 5V Supply Current