參數(shù)資料
型號(hào): MAX7491EEE+T
廠商: Maxim Integrated Products
文件頁數(shù): 16/18頁
文件大?。?/td> 0K
描述: IC FILTER SW CAP DUAL 16-QSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
濾波器類型: 通用開關(guān)電容器
頻率 - 截止或中心: 40kHz
濾波器數(shù): 2
濾波器階數(shù): 2nd
電源電壓: 2.7 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-QSOP
包裝: 帶卷 (TR)
MAX7490/MAX7491
Dual Universal Switched-Capacitor Filters
_______________________________________________________________________________________
7
-20
-120
1k
10k
MAX7490
THD + NOISE vs. FREQUENCY
MAX7490-13
INPUT FREQUENCY (Hz)
THD
+
NOISE
(dB)
-30
-40
-50
-60
-70
-80
-90
-100
-110
B
A
A = MODE 1
B = MODE 3
-90
-80
-70
-60
-50
-40
-30
-20
-10
01.0
0.5
1.5
2.0
2.5
3.0
MAX7491
THD + NOISE vs. INPUT VOLTAGE
MAX7490-14
INPUT VOLTAGE (Vp-p)
THD
+
NOISE
(dB)
B
A
A = MODE 1
B = MODE 3
-90
-80
-70
-60
-50
-40
-30
-20
-10
012345
MAX7490
THD + NOISE vs. INPUT VOLTAGE
MAX7490-15
INPUT VOLTAGE (Vp-p)
THD
+
NOISE
(dB)
B
A
A = MODE 1
B = MODE 3
2.0
3.0
2.5
3.5
4.0
4.5
5.0
08
412
16
20
OUTPUT VOLTAGE SWING
vs. LOAD RESISTANCE
MAX7490-16
RLOAD (k
Ω) TO COM
OUTPUT
SWING
(Vp-p)
VDD = 5V
VDD = 3V
0
500
1500
1000
2000
2500
0400
200
600
800
1000
INTERNAL OSCILLATOR PERIOD
vs. SMALL CAPACITANCE
MAX7490-17
CAPACITANCE (pF)
INTERNAL
OSCILLATOR
FREQUENCY
(kHz)
VDD = 3V
VDD = 5V
0
20
40
60
80
100
120
140
160
13
2
4567
INTERNAL OSCILLATOR PERIOD
vs. LARGE CAPACITANCE
MAX7490-18
CAPACITANCE (nF)
INTERNAL
OSCILLATOR
FREQUENCY
(kHz)
VDD = 5V
VDD = 3V
126
128
127
130
129
132
131
133
3.0
4.0
3.5
4.5
5.0
5.5
INTERNAL OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
MAX7490-19
VDD (V)
INTERNAL
OSCILLATOR
FREQUENCY
(kHz)
COSC = 1000pF
124
130
128
126
132
134
136
138
140
142
144
-40
10
-15
35
60
85
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX7490-20
TEMPERATURE (
°C)
INTERNAL
OSCILLATOR
FREQUENCY
(kHz)
VDD = 3V
VDD = 5V
COSC = 1000pF
Typical Operating Characteristics (continued)
(VDD = +5V for MAX7490, VDD = +3V for MAX7491, fCLK = 625kHz, VSHDN = VEXTCLK = VDD, COM = VDD/2, Mode 1, R3 = R1 = 50kΩ,
R2 = 10kΩ, Q = 5, TA = +25°C, unless otherwise noted.)
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