参数资料
型号: LTC1068-50CG#TRPBF
厂商: Linear Technology
文件页数: 3/30页
文件大小: 0K
描述: IC FILTR BUILDNG BLK QUAD 28SSOP
标准包装: 2,000
滤波器类型: 通用开关电容器
频率 - 截止或中心: 50kHz
滤波器数: 4
滤波器阶数: 8th
电源电压: 3.14 V ~ 11 V,±3.14 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 带卷 (TR)
LTC1068 Series
11
1068fc
PIN FUNCTIONS
BLOCK DIAGRAM
path. A 200Ω resistor between clock source and Pin 11
will slow down the rise and fall times of the clock to further
reduce charge coupling (Figures 1 and 2).
Output Pins
Each 2nd order section of an LTC1068 device has three
outputs that typically source 17mA and sink 6mA. Driv-
ing coaxial cables or resistive loads less than 20k will
degrade the total harmonic distortion performance of
any filter design. When evaluating the distortion or noise
performance of a particular filter design implemented with
a LTC1068 device, the final output of the filter should be
buffered with a wideband, noninverting high slew rate
amplifier (Figure 3).
Inverting Input Pins
These pins are the inverting inputs of internal op amps
and are susceptible to stray capacitive coupling from low
impedance signal outputs and power supply lines.
In a printed circuit layout any signal trace, clock source
trace or power supply trace should be at least 0.1 inches
away from any inverting input pins
Summing Input Pins
These are voltage input pins. If used, they should be driven
with a source impedance below 5k. When they are not
used, they should be tied to the analog ground pin.
The summing pin connections determine the circuit to-
pology (mode) of each 2nd order section. Please refer to
Modes of Operation.
Figure 3. Wideband Buffer
+
LT1354
1k
1068 F03
+
RA*
RB*
V+ (8)
CLK (21)
V(23)
NC (6)
NC (9)
NC (20)
NC (22)
AGND (7)
1068 BD
+
HPC/NC
(27)
BPC
(26)
LPC
(25)
HPB/NB
(2)
BPB
(3)
LPB
(4)
*THE RATIO RA/RB VARIES ±2%
BPA
(12)
LPA
(11)
INV A
(14)
AGND
(7)
INV C
(28)
HPA/NA
(13)
+ Σ
SA
(10)
+
+
+
+
INV D
(15)
INV B
(1)
HPD/ND
(16)
Σ
SB
(5)
Σ
SC
(24)
Σ
SD
(19)
+
BPD
(17)
LPD
(18)
PIN 28-LEAD SSOP PACKAGE
DEVICE
LTC1068
LTC1068-200
LTC1068-25
LTC1068-50
RA
10k
11.3k
RB
10k
8.6k
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LTC1068-50IG#TR 功能描述:IC FILTER BUILDG BLK QUAD 28SSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间,带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V,±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC W 包装:带卷 (TR)
LTC1068-50IG#TRPBF 功能描述:IC FILTR BUILDNG BLK QUAD 28SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间,带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V,±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC W 包装:带卷 (TR)
LTC1068-50IG-PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Clock-Tunable, Quad Second Order, Filter Building Blocks