LTC1064
U W
TYPICAL PERFORMANCE CHARACTERISTICS
Mode 2, (f /f ) = 25:1
Mode 3, (f /f ) = 50:1
CLK O
Mode 2, (f /f ) = 50:1
CLK
O
CLK
O
T
= 25°C
T
= 25°C
A
S
A
–
V
= ±7.5V
PIN 17 AT V
(R2/R4) = 3
Q = 5
T
= 25°C
A
C
20
15
10
5
+
20
15
10
5
V
= ±5V
PIN 17 AT V
(R2/R4) = 3
S
V
S
= ±2.5V
C
= 5pF
20
15
10
5
R2 = R4
V
= ±5V
S
Q = 10
Q = 5
Q = 10
Q = 5
= 22pF
Q = 2
= 39pF
V = ±2.5V
S
V
= ± 7.5V
S
C
C
C
C
0
0
V
S
= ± 7.5V
–5
–5
0
–5
1.5
1.0
0.5
0
1.5
1.0
0.5
0
V
= ±5V
S
Q = 2
Q = 5
1.5
1.0
0.5
0
V
= ±2.5V
S
V
= ±5V
S
V
S
= ± 7.5V
V
S
= ± 7.5V
V
S
= ±2.5V
0
20
80
120140160180200
100
CENTER FREQUENCY (kHz)
40 60
0
10
40
60 70 80 90 100110 120
50
CENTER FREQUENCY (kHz)
20 30
0
10
40
60 70 80 90 100110 120
50
20 30
1064 G04
1064 G05
CENTER FREQUENCY (kHz)
1064 G06
Mode 3, (f /f ) = 50:1
Mode 3, (f /f ) = 100:1
Wideband Noise vs Q
CLK
O
CLK
O
240
220
200
180
160
140
120
100
80
T
= 25°C
T
= 25°C
ANY OUTPUT
R3 = R1
ONE SECOND ORDER
SECTION
MODE 1 OR 3
100:1 OR 50:1
A
C
A
C
C
= 15pF
C
= 5pF
20
15
10
5
20
15
10
5
R2 = R4
V
R2 = R4
Q = 10
V
= ±2.5V
S
= ±7.5V
V
S
= ±5V
S
Q = 2
Q = 1
±7.5V
±5V
±2.5V
V
S
= ± 7.5V
0
0
–5
–5
V
S
= ±5V
V
= ±2.5V
S
V
= ±7.5V
S
1.5
1.0
0.5
0
1.5
1.0
0.5
0
60
V
= ±2.5V
S
V = ± 7.5V
S
V
= ±5V
40
S
20
0
0
10
40
60 70 80 90 100110 120
50
20 30
0
10
40
60 70 80 90 100110 120
50
20 30
0
2
8 12 14 16 18 20 22 24
10
4
6
CENTER FREQUENCY (kHz)
CENTER FREQUENCY (kHz)
Q
1064 G07
1064 G08
1064 G09
Harmonic Distortion, 8th Order
LP Butterworth, f = 20kHz,
Power Supply Current vs
Supply Voltage
C
THD = 0.015% for 3V
Input
RMS
48
44
40
36
32
28
24
20
16
12
8
–55°C
25°C
125°C
4
0
1064 G11
0
2
8
12 14 16 18 20 22 24
4
6
10
+
–
POWER SUPPLY VOLTAGE (V – V )
1064 G10
1064fb
5