ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 71

• Manufacturer Part Number: ST18-AU1
• Description: SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 18.3
For timing purposes a pin is no longer floating when a 100mV change from Vref occurs,
but begins to float when a 150mV change from the loaded VOH/VOL level occurs.
VOH
VOL
Vref
From output
under test
Vref + 0.1V
Vref - 0.1V
Float load circuit and waveform
CL = 50pF
timing reference
points
~
IOL = 8mA
IOH = 8mA
Vref
VOH - 0.15v
VOL - 0.15v
ST18-AU1
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