LTC1196 查看數據表（PDF） - Linear Technology
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LTC1196 Datasheet PDF : 28 Pages
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LTC1196/LTC1198
TYPICAL PERFORMANCE CHARACTERISTICS
4096 Point FFT Plot at 5V
0
VCC = 5V
–10
fIN = 29kHz
–20
fSMPL = 882kHz
–30
–40
–50
–60
–70
–80
–90
–100
0
100 200 300 400 500
FREQUENCY (kHz)
1196/98 G25
Power Supply Feedthrough vs
Ripple Frequency
0
TA = 25°C
–10
VCC (VRIPPLE = 20mV)
fCLK = 12MHz
–20
–30
–40
–50
–60
–70
1k
10k
100k
RIPPLE FREQUENCY (Hz)
1M
1196/98 G28
Intermodulation Distortion at 2.7V
0
VCC = 2.7V
–10
f1 = 100kHz
–20
f2 = 110kHz
fSMPL = 420kHz
–30
–40
–50
–60
–70
–80
–90
–100
0
50 100 150 200 250
FREQUENCY (kHz)
1196/98 G31
4096 Point FFT Plot at 2.7V
0
VCC = 2.7V
–10
fIN = 29kHz
–20
fSMPL = 340kHz
–30
–40
–50
–60
–70
–80
–90
–100
0
50
100
150
200
FREQUENCY (kHz)
1196/98 G26
Power Supply Feedthrough vs
Ripple Frequency
0
TA = 25°C
–10
VCC (VRIPPLE = 10mV)
fCLK = 5MHz
–20
–30
–40
–50
–60
–70
1k
10k
100k
RIPPLE FREQUENCY (Hz)
1M
1196/98 G29
Intermodulation Distortion at 5V
0
VCC = 5V
–10
f1 = 200kHz
–20
f2 = 210kHz
fSMPL = 750kHz
–30
–40
–50
–60
–70
–80
–90
–100
0
100
200
300
400
FREQUENCY (kHz)
1196/98 G32
FFT Output of 455kHz AM Signal
Digitized at 1Msps
0
VCC = 5V
–10 fIN = 455kHz WITH 20kHz AM
–20 fSMPL = 1MHz
–30
–40
–50
–60
–70
–80
–90
–100
0
100 200 300 400 500
FREQUENCY (kHz)
1196/98 G27
S/(N + D) vs Reference Voltage
and Input Frequency
50
45
fIN = 200kHz
fIN = 500kHz
fIN = 100kHz
40
35
30
VCC = 5V
25
1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25
REFERENCE VOLTAGE (V)
1196/98 G30
S/(N + D) vs Input Level
50
VREF = VCC = 5V
fIN = 500kHz
40 fSMPL = 1MHz
30
20
10
0
–40 –35 –30 –25 –20 –15 –10 –5 0
INPUT LEVEL (dB)
1196/98 G33
10
119698fa
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