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參數(shù)資料
| 型號(hào)： | LTC1065CSW#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTR 5TH ORDR LOWPASS 16SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 濾波器類型： | 貝塞爾，低通開關(guān)電容器 |
| 頻率 - 截止或中心： | 50kHz |
| 濾波器數(shù)： | 1 |
| 濾波器階數(shù)： | 5th |
| 電源電壓： | ±2.37 V ~ 8 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
7
LTC1065
1065fb
CLOCK FREQUENCY (MHz)
1
MAXIMUM
LOAD
CAPACITANCE
(pF
)
200
180
160
140
120
100
80
60
40
20
0
310
1065 F02
24
5
6 78 9
VS = ±2.5V
VS = ±5V
VS = ±7.5V
TA = 25°C
PI FU CTIO S
U
UU
Input Pin (Pin 1, N Package)
Pin 1 is the filter input and it is connected to an internal
switched-capacitor resistor. If the input pin is left floating,
the filter output will saturate. The DC input impedance of
pin 1 is very high; with
±5V supplies and 1MHz clock, the
DC input impedance is typically 1G
. A resistor RIN in
series with the input pin will not alter the value of the filter’s
DC output offset (Figure 1). RIN should however, be limited
to a maximum value (Table 1), otherwise the filter’s pass-
band will be affected. Refer to the Applications Information
section for more details.
VIN
VOUT
1065 F01
V–
V+
RIN 1
2
3
4
8
7
6
5
LTC1065
fCLK
Figure 1.
Table 1. RIN(MAX) vs Clock and Power Supply
RIN(MAX)
VS = ±7.5V
VS = ±5V
VS = ±2.5V
fCLK = 4MHz
1.82k
–
fCLK = 3MHz
3.01k
2.49k
–
fCLK = 2MHz
4.32k
3.65k
2.37k
fCLK = 1MHz
9.09k
8.25k
7.5k
fCLK = 500kHz
17.8k
16.9k
fCLK = 100kHz
95.3k
90.9k
100:1. The high (VHIGH) and low (VLOW) clock logic
threshold levels are illustrated in Table 2. Square wave
clocks with duty cycles between 30% and 50% are strongly
recommended. Sinewave clocks are not recommended.
Output Pin (Pin 7, N Package)
Pin 7 is the filter output. This pin can typically source over
20mA and sink 2mA. Pin 7 should not drive long coax
cables, otherwise the filter’s total harmonic distortion will
degrade. The maximum load the filter output can drive and
still maintain the distortion levels, shown in the Typical
Performance Characteristics, is 20k.
Clock Input Pin (Pin 5, N Package)
An external clock, when applied to pin 5, tunes the filter
cutoff frequency. The clock-to-cutoff frequency ratio is
Table 2. Clock Pin Threshold Levels
POWER SUPPLY
VHIGH
VLOW
VS = ±2.5V
1.5V
0.5V
VS = ±5V
3V
1V
VS = ±7.5V
4.5V
1.5V
VS = ±8V
4.8V
1.6V
VS = 5V, 0V
4V
3V
VS = 12V, 0V
9.6V
7.2V
VS =15V, 0V
12V
9V
Clock Output Pin (Pin 4, N Package)
Any external clock applied to the clock input pin appears
at the clock output pin. The duty cycle of the clock output
equals the duty cycle of the external clock applied to the
clock input pin. The clock output pin swings to the power
supply rails. When the LTC1065 is used in a self-clocking
mode, the clock of the internal oscillator appears at the
clock output pin with a 30% duty cycle. The clock output
pin can be used to drive other LTC1065s or other ICs. The
maximum capacitance, CL(MAX), the clock output pin can
drive is illustrated in Figure 2.
Figure 2. Maximum Load Capacitance at the Clock Output Pin
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| LTC1065IN8 | 功能描述:IC FILTR 5TH ORDR LOWPASS 8-DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1065IN8#PBF | 功能描述:IC FILTR 5TH ORDR LOWPASS 8-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1065ISW | 功能描述:IC FILTR 5TH ORDR LOWPASS 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1065ISW#PBF | 功能描述:IC FILTR 5TH ORDR LOWPASS 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LTC1065ISW#TR | 功能描述:IC FILTER LP 5TH ORD LIN 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
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