PACVGA203Q CALMIRCO [California Micro Devices Corp], PACVGA203Q Datasheet - Page 6

• Manufacturer Part Number: PACVGA203Q
• Description: VGA Port Companion Circuit
• Manufacturer: CALMIRCO [California Micro Devices Corp]

Test Circuit Information
Average Current through V
The circuit in
signal was connected to the input of one of the SYNC buffers (i.e. pin 19 or pin 21). The frequency of this signal
was varied between 0 and 100 kHz. The risetime and falltime was kept constant at 10ns. Three different values of
C1 were used: 0pF, 50pF and 100pF. The results are plotted in
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6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Figure 1
was used to characterize I
100
90
80
70
60
50
40
30
20
10
0
Figure 2. I
0
CC
4 (I
CC
3.3V
0V
4)
Figure 1. Sync Buffer I
20
CC
I
4 vs. SYNC_IN Frequency Performance Data
CC4
vs. SYNC_IN Frequency
●
40
Frequency, kHz
CC
Tel: [phone]
4 current as SYNC_IN signal frequency varies. A square wave
SYNC_IN
60
CC
4 Test Circuit
Figure
V
●
+5V
CC
4
80
Fax: [phone]
2.
I
CC
SYNC_OUT
4
100
C1
●
100pF
50pF
0pF
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PACVGA203
12/07/04