參數(shù)資料
型號： LTC6603CUF#PBF
廠商： LINEAR TECHNOLOGY CORP
英文描述： LOW PASS FILTER
封裝： LEAD FREE, PLASTIC, QFN-24
文件頁數(shù)： 9/24頁
文件大小： 278K
代理商： LTC6603CUF#PBF
LTC6603
17
6603fa
APPLICATIONS INFORMATION
Figure 6. Current Controlled Clock Frequency
Figure 8. Voltage Controlled Clock Frequency
6603 F06
V+IN
V+A
VOCM
RBIAS
CLKCNTL
LPF1(CS)
+INB
–INB
LPF0(SCLK)
SDI
SDO
–OUTB
+INA
–INA
GAIN1
GAIN0(D0)
VOCM CAP
+OUTA
–OUTA
SER
V+D
CLK IO
GND
+OUTB
LTC6603
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
C1
100nF
C2
2.2μF
C4
100nF
C3
2.2μF
C19
50pF
C18
50pF
C15
10nF
+OUTA
–OUTA
+OUTB
–OUTB
R23
50k
R24
50k
–INB
+INB
R25
50k
R26
50k
+INA
–INA
C17
50pF
C16
50pF
–IN
+IN
5V
7
OUT
–IN
+IN
OUT
R1
30.5k
5V
C7
100nF
V+
V–
2
3
SDO
SDI
SCK
CLR
CS/LD
LDAC
5V
C8
100nF
R4
100k
5V
7
1
2
3
4
5
10
C9
1μF
VOUT
VREF VCC
GND
LTC2621-1
SDI
SCLK
CS
5V
3V
I RANGE = 6μA TO 38.4μA
USE NARROW SHORT
TRACES FOR MINIMUM
CAPACITANCE.
Q1
RK7002AT116CT
2
1
LTC6078
CLR LOW WILL SET DAC TO MID-SCALE (WITH A LTC6603-1 VERSION).
HAS ~100ms TC AT START-UP TO RESET TO ZERO-SCALE.
DATA FORMAT
DATA IS SHIFTED FROM MOSI (MASTER OUT, SLAVE IN) THRU LTC6603 INTO THE LTC2621.
THE TOTAL PACKET IS 32 BITS. IT STARTS WITH A CONTROL BYTE (0011 XXXX) THEN MSB OF THE DAC,
WITH DUMMY BITS AT THE END, 16 BITS (24 BITS TOTAL). THEN 8 BITS TO THE FILTER.
D6 AND D7 = GAIN, D4 AND D5 = LPF, D1 = SHDN. D0 = GEN. PURPOSE OUTPUT.
SPI INTERFACE
VOCM
V+
V–
V+
V+IN
RBIAS
6603 F08
VCONTROL
fCLK = 247.2MHz (10k/RBIAS) (1 – VCONTROL/1.17V)
RBIAS
+
–
FREQUENCY (Hz)
GAIN
(dB)
6603 F07
10
0
–10
–20
–30
–40
–50
–60
–70
–80
1k
1M
10M
100k
10k
VS = 3V
TA = 25°C
Figure 7. Frequency Response Controlled by LTC2621-1
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LTC6603CUF-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Adjustable Lowpass Filter
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LTC6603IUF-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Adjustable Lowpass Filter
LTC6603IUF-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Adjustable Lowpass Filter
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