參數(shù)資料
型號： LTC6602CUF#TRPBF
廠商： Linear Technology
文件頁數(shù)： 8/28頁
文件大?。?/td> 0K
描述： IC FILTER BANDPASS/LOWPASS 24QFN
標準包裝： 2,500
濾波器類型： 帶通
頻率 - 截止或中心： 300kHz
濾波器數(shù)： 2
濾波器階數(shù)： 5th
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： 帶卷 (TR)
LTC6602
16
6602fc
APPLICATIONS INFORMATION
Gain and Group Delay vs Frequency
(45kHz to 300kHz Bandpass Response)
Gain and Group Delay vs Frequency
(15kHz to 150kHz Bandpass Response)
Gain and Group Delay vs Frequency
(90kHz to 900kHz Bandpass Response)
Gain and Group Delay vs Frequency
(900kHz Lowpass Response)
are shown in Table 3. When the LTC6602 is programmed
for the lowest lowpass cutoff frequency (LPF1, LPF0 = ‘0’),
the power is automatically reduced by about 35%.
Table 2. Cutoff Frequency Control, RBIAS = 54.9k, fCLK = 90MHz
LPF1
LPF0
LOWPASS
BW (kHz)
HPF1
HPF0
HIGHPASS
BW (kHz)
0
150
0
15
0
1
300
0
1
45
1
0
900
1
0
90
1
900
1
Bypass HPF
Table 3. Cutoff Frequency Control, RBIAS = 200k, fCLK = 24.705MHz
LPF1
LPF0
LOWPASS
BW (kHz)
HPF1
HPF0
HIGHPASS
BW (kHz)
0
41.175
0
4.1175
0
1
82.35
0
1
12.3525
1
0
247.05
1
0
24.705
1
247.05
1
Bypass HPF
The following graphs show a few of the possible combina-
tions of highpass and lowpass filters.
FREQUENCY (Hz)
GAIN
(dB)
GROUP
DELA
Y(s)
6602 G28
40
10
20
30
0
–60
–50
–40
–30
–20
–10
20
14
16
18
12
0
2
4
6
8
10
1k
1M
10M
100k
10k
TA = 25°C
VS = 3V
EXTERNAL
CLOCK
RBIAS = 54.9k
GAIN = 30dB
GROUP
DELAY
GAIN = 24dB
GAIN = 0dB
GAIN = 12dB
FREQUENCY (Hz)
GAIN
(dB)
GROUP
DELA
Y(s)
6602 G29
40
10
20
30
0
–60
–50
–40
–30
–20
–10
60
42
48
54
36
0
6
12
18
24
30
1k
1M
100k
10k
TA = 25°C
VS = 3V
EXTERNAL
CLOCK
RBIAS = 54.9k
GAIN = 30dB
GROUP
DELAY
GAIN = 24dB
GAIN = 0dB
GAIN = 12dB
FREQUENCY (Hz)
GAIN
(dB)
GROUP
DELA
Y(s)
6602 G30
40
10
20
30
0
–60
–50
–40
–30
–20
–10
10
7
8
9
6
0
1
2
3
4
5
10k
10M
1M
100k
TA = 25°C
VS = 3V
EXTERNAL
CLOCK
RBIAS = 54.9k
GAIN = 30dB
GAIN = 24dB
GAIN = 12dB
GAIN = 0dB
GROUP
DELAY
FREQUENCY (Hz)
GAIN
(dB)
GROUP
DELA
Y(s)
6602 G28
40
10
20
30
0
–60
–50
–40
–30
–20
–10
1.0
0.7
0.8
0.9
0.6
0.0
0.1
0.2
0.3
0.4
0.5
1k
1M
10M
100k
10k
TA = 25°C
VS = 3V
EXTERNAL CLOCK
RBIAS = 54.9k
GAIN = 30dB
GROUP DELAY
GAIN = 24dB
GAIN = 0dB
GAIN = 12dB
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