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参数资料
| 型号： | LTC1060CSW#TR |
| 厂商： | Linear Technology |
| 文件页数： | 20/20页 |
| 文件大小： | 0K |
| 描述： | IC BUILDING BLK DUAL FLTR 20SOIC |
| 标准包装： | 1,000 |
| 滤波器类型： | 通用开关电容器 |
| 频率 - 截止或中心： | 30kHz |
| 滤波器数： | 2 |
| 滤波器阶数： | 4th |
| 电源电压： | ±2.37 V ~ 5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 带卷 (TR) |
9
LTC1060
1060fb
Table 2. Wideband RMS Noise
fCLK
NOTCH/HP
BP
LP
VS
f0
(VRMS)(VRMS)(VRMS)
CONDITIONS
±5V
50:1
49 (42)
52 (43)
75 (65)
Mode1, R1 = R2 = R3
±5V
100:1
70 (55)
80 (58)
90 (88)
Q = 1
±2.5V
50:1
33 (31)
36 (32)
48 (43)
±2.5V
100:1
48 (40)
52 (40)
66 (55)
±5V
50:1
20 (18)
150 (125)
186 (155)
Mode 1, Q = 10
±5V
100:1
25 (21)
220 (160)
240 (180)
R1 = R3 for BP out
±2.5V
50:1
16 (15)
100 (80)
106 (87)
R1 = R2 for LP out
±2.5V
100.1
20 (17)
150 (105)
150 (119)
±5V
50:1
57
62
Mode 3, R1 = R2 = R3 = R4
±5V
100:1
72
80
Q = 1
±2.5V
50:1
40
42
±2.5V
100.1
50
53
±5V
50:1
135
120
140
Mode 3, R2 = R4, Q = 10
±5V
100:1
170
160
185
R3 = R1 for BP out
±2.5V
50:1
100
88
100
R4 = R1 for LP and HP out
±2.5V
100:1
125
115
130
Short-Circuit Currents
Short circuits to ground, positive or negative power supply
are allowed as long as the power supplies do not exceed
±5V and the ambient temperature stays below 85C.
Above ±5V and at elevated temperatures, continuous
short circuits to the negative power supply will cause
excessive currents to flow. Under these conditions, the
device will get damaged if the short-circuit current is
allowed to exceed 80mA.
Each building block of the LTC1060, together with an
external clock and a few resistors, closely approximates
2nd order filter functions. These are tabulated below in the
frequency domain.
1. Bandpass function: available at the bandpass output
Pins 2 (19). (Figure 1.)
G(s) = HOBP
sωo/Q
s2 + (sωo/Q) + ωo2
HOBP = Gain at ω = ωo
f0 = ω/2π; f0 is the center frequency of the complex
pole pair. At this frequency, the phase shift
between input and output is –180.
Q = Quality factor of the complex pole pair. It is the
ratio of f0 to the –3dB bandwidth of the 2nd or-
der bandpass function. The Q is always mea-
sured at the filter BP output.
2. Lowpass function: available at the LP output Pins
1 (20). (Figure 2.)
G(s) = HOLP
ωo
s2 + s(ωo/Q) + ωo
2
HOLP DC gain of the LP output.
APPLICATIO S I FOR ATIO
WU
UU
DEFINITION OF FILTER FUNCTIONS
UU
U
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