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參數(shù)資料
| 型號(hào)： | LTC6603IUF#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTER LOWPASS 24-QFN |
| 標(biāo)準(zhǔn)包裝： | 91 |
| 濾波器類型： | 低通 |
| 頻率 - 截止或中心： | 80MHz |
| 濾波器數(shù)： | 2 |
| 濾波器階數(shù)： | 9th |
| 電源電壓： | 2.7 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-QFN 裸露焊盤（4x4） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1323 (CN2011-ZH PDF) |
LTC6603
10
6603fa
V+IN (Pin 1): Input Voltage Supply (2.7V ≤ V ≤ 5.5V). This
supply must be kept free from noise and ripple. It should
be bypassed directly to a ground plane with a 0.1μF ca-
pacitor unless it is tied to V+A (Pin 2). The bypass should
be as close as possible to the IC, but is not as critical as
the bypassing of V+A and V+D (Pin16).
V+A (Pin 2): Analog Voltage Supply (2.7V ≤ V ≤ 3.6V). This
supply must be kept free from noise and ripple. It should be
bypassed directly to a ground plane with a 0.1μF capacitor.
The bypass should be as close as possible to the IC.
VOCM (Pin 3): Output Common Mode Voltage Reference.
If oated, an internal resistive divider sets the voltage
on this pin to half the supply voltage (typically 1.5V),
maximizing the dynamic range of the lter. If this pin is
oated, it must be bypassed with a quality 1μF capacitor
to ground. This pin has a typical input impedance of 3.4k
and may be overdriven. Driving this pin to a voltage other
than the default value will reduce the signal range the lter
can handle before clipping.
RBIAS (Pin 4): Oscillator Frequency-Setting Resistor Input.
The value of the resistor connected between this pin and
ground determines the frequency of the master oscillator,
and sets the bias currents for the lter networks. The voltage
on this pin is held by the LTC6603 to approximately 1.17V.
For best performance, use a precision metal lm resis-
tor with a value between 30.9k and 200k and limit the
capacitance on this pin to less than 10pF. This resistor is
necessary even if an external clock is used.
CLKCNTL (Pin 5): Clock Control Input. This three-state
input selects the function of CLKIO (Pin 15). Tying the
CLKCNTL pin to ground allows the CLKIO pin to be driven
by an external clock (CLKIO is the master clock input).
If the CLKCNTL pin is oated, the internal oscillator is
enabled, but the master clock is not present at the CLKIO
pin (CLKIO is a no-connect). If the CLKCNTL pin is tied
to V+D (Pin 16), the internal oscillator is enabled and the
master clock is present at the CLKIO pin (CLKIO is the
master clock output). To detect a oating CLKCNTL pin,
the LTC6603 attempts to pull the pin toward mid-supply.
This is realized with two internal 15μA current sources, one
tied to V+D and CLKCNTL and the other one tied to ground
and CLKCNTL. Therefore, driving the CLKCNTL pin high
requires sourcing approximately 15μA. Likewise, driving
the CLKCNTL pin low requires sinking 15μA. When the
CLKCNTL pin is oated, it should be bypassed by a 1nF
capacitor to ground or be surrounded by a ground shield
to prevent excessive coupling from other PCB traces.
TYPICAL PERFORMANCE CHARACTERISTICS
Integral Input Referred Noise
PIN FUNCTIONS
INTEGRATION BW (Hz)
VOL
TAGE
NOISE
(μ
V)
6603 G34
1000
100
10
1
10k
1M
10M
100k
VS = 3V, RBIAS = 30.9k
LPF1 = 0, LPF0 = 1, BW = 625kHz
TA = 25°C
GAIN = 0dB
GAIN = 6dB
GAIN = 12dB
GAIN = 24dB
INTEGRATION BW (Hz)
VOL
TAGE
NOISE
(μ
V)
6603 G35
1000
100
10
1
10k
100k
1M
VS = 3V, RBIAS = 30.9k
LPF1 = LPF0 = 0, BW = 156.25kHz
TA = 25°C
GAIN = 24dB
GAIN = 12dB
GAIN = 0dB
GAIN = 6dB
Integral Input Referred Noise
INTEGRATION BW (Hz)
VOL
TAGE
NOISE
(μ
V)
6603 G33
1000
100
10
1
10k
1M
10M
100k
VS = 3V, RBIAS = 30.9k
LPF1 = 1,BW = 2.5MHz
TA = 25°C
GAIN = 0dB
GAIN = 6dB
GAIN = 12dB
GAIN = 24dB
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| LTC6603IUF-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Adjustable Lowpass Filter |
| LTC6604CUFF-10-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 10MHz Lowpass Filter |
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