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参数资料
| 型号： | LTC1562CG-2#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC FILTER UNIV RC QUAD LN 20SSOP |
| 标准包装： | 66 |
| 滤波器类型： | 通用连续计时 |
| 频率 - 截止或中心： | 300kHz |
| 滤波器数： | 4 |
| 滤波器阶数： | 8th |
| 电源电压： | 4.75 V ~ 10.5 V，±4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 1324 (CN2011-ZH PDF) |
4
LTC1562-2
15622fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Peak BP Gain vs Nominal fO
(VS = ±5V) (Figure 3, V1 Output)
Q Error vs Nominal fO (VS = ±2.5V)
Peak BP Gain vs Nominal fO
(VS = ±2.5V) (Figure 3, V1 Output)
NOMINAL fO (kHz)
100
Q
ERROR
(%)
55
50
45
40
35
30
25
20
15
10
5
0
–5
260
1562-2 G04
140
180
220
300
240
120
160
200
280
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
NOMINAL fO (kHz)
100
PEAK
BP
GAIN
(dB)
0.25
0
0.50
1.00
3.00
2.00
140
180 200
280
2.50
1.50
0.75
1.25
2.25
2.75
1.75
120
160
220 240 260
300
1562-2 G5
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
NOMINAL fO (kHz)
100
PEAK
BP
GAIN
(dB)
0.25
0
0.50
1.00
3.00
2.00
140
180 200
280
2.50
1.50
0.75
1.25
2.25
2.75
4.00
3.50
3.25
3.75
1.75
120
160
220 240 260
300
1562-2 G6
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
LP Noise vs Nominal fO
(VS = ±5V, 25°C) (Figure 3,
V2 Output) (RIN = R2)
NOMINAL fO (kHz)
120
10
LP
NOISE
(
V
RMS
)
30
60
70
80
90
100
160
200
220
1562-2 G07
20
50
40
140
180
240 260
280
Q = 5
Q = 2.5
Q = 1
BP Noise vs Nominal fO
(VS = ±5V, 25°C) (Figure 3,
V1 Output) (RIN = RQ)
NOMINAL fO (kHz)
120
10
BP
NOISE
(
V
RMS
)
30
60
70
80
90
100
160
200
220
1562-2 G08
20
50
40
140
180
240 260
280
Q = 5
Q = 2.5
Q = 1
PIN FUNCTIONS
UU
U
Distortion vs External Load
Resistance and Frequency
(VS = ±5V, 25°C) (Figure 8)
EXTERNAL LOAD RESISTANCE (
)
10k
–100
THD
(AMPLITUDE
BELOW
FUNDAMENTAL)
(dB)
THD
(AMPLITUDE
BELOW
FUNDAMENTAL)
(%)
–80
–70
–60
–50
–40
–30
5k
2k
1562-2 G09
–20
–10
0
0.001
0.01
0.1
1
10
100
–90
1k
fIN = 20kHz
fIN = 50kHz
2nd ORDER LOWPASS
fO = 200kHz
Q = 0.7
OUTPUT LEVEL 1VRMS (2.83VP-P)
±5V SUPPLIES
fIN = 100kHz
Power Supply Pins: The V+ and V – pins should be
bypassed with 0.1
F capacitors to an adequate analog
ground or ground plane. These capacitors should be
connected as closely as possible to the supply pins. Pins
4, 7, 14 and 17 are internally connected to V – (Pin 16) and
should also be tied to the same point as Pin 16 for best
shielding. Low noise linear supplies are recommended.
Switching supplies are not recommended as they will
lower the filter dynamic range.
Analog Ground (AGND): The AGND pin is the midpoint of
a resistive voltage divider, developing a potential halfway
between the V + and V – pins, with an equivalent series
resistance nominally 7k. This serves as an internal ground
reference. Filter performance will reflect the quality of the
analog signal ground and an analog ground plane
surrounding the package is recommended. The analog
ground plane should be connected to any digital ground at
a single point. For dual supply operation, the AGND pin
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