 English |
|
|
|
|
|
|
|
| CD54HC4051_04 Datasheet, PDF (12/29 Pages) Texas Instruments – High-Speed CMOS Logic Analog Multiplexers/Demultiplexers | |||
| |||
| ◁ |
âHC4051, âHCT4051, âHC4052, CD74HCT4052, âHC4053, CD74HCT4053
Test Circuits and Waveforms
VCC
VIS
0.1µF
SWITCH
ON
50â¦
VCC /2
VOS
10pF
dB
METER
FIGURE 3. FREQUENCY RESPONSE TEST CIRCUIT
VIS
R
INPUT 0.1µF
fIS = 1MHz SINEWAVE
R = 50â¦
C = 10pF
VCC
SWITCH
ON
R
VCC /2
VOS1
C
VCC
R
VCC /2
SWITCH
OFF
VOS2
R
C
dB
METER
VCC /2
FIGURE 4. CROSSTALK BETWEEN TWO SWITCHES TEST
CIRCUIT
VCC
SINE-
WAVE
VIS
10µF
SWITCH
ON
VI = VIH
10kâ¦
fIS = 1kHz TO 10kHz
VCC /2
50pF
VIS
VOS
DISTORTION
METER
FIGURE 5. SINEWAVE DISTORTION TEST CIRCUIT
600â¦
VCC /2
E
VCC
SWITCH
ALTERNATING
ON AND OFF
tr, tf ⤠6ns
fCONT = 1MHz
50% DUTY
CYCLE
VOS
VOS
600â¦
50pF
VCC /2
VP-P
SCOPE
FIGURE 6. CONTROL TO SWITCH FEEDTHROUGH NOISE
TEST CIRCUIT
0.1µF
VIS
VCC
SWITCH
OFF
VC = VIL
R
R
fIS ⥠1MHz SINEWAVE
R = 50â¦
C = 10pF
VOS
dB
C
METER
VCC /2
VCC /2
FIGURE 7. SWITCH OFF SIGNAL FEEDTHROUGH
12
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese