adau1781bcpz-rl Analog Devices, Inc., adau1781bcpz-rl Datasheet - Page 80

• Manufacturer Part Number: adau1781bcpz-rl
• Description: Low Noise Stereo Codec With Sigmadsp Processing Core
• Manufacturer: Analog Devices, Inc.

ADAU1781
Register 16433 (0x4031), MCKO Control
Bit 2, MCKO Pin Drive Strength
This bit sets the drive strength of the MCKO pin. Low mode yields
2 mA when IOVDD = 3.3 V, or 0.75 mA when IOVDD = 1.8 V.
High mode yields 4 mA when IOVDD = 3.3 V, or 1.5 mA when
IOVDD = 1.8 V.
Table 69. MCKO Control Register
Bits
[7:3]
2
1
0
Description
Reserved
MCKO pin drive strength
0: low
1: high
MCKO pull-up enable (active low)
0: pull-down disabled
1: pull-down enabled
MCKO pull-down enable
0: pull-down disabled
1: pull-down enabled
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Bit 1, MCKO Pull-Up Enable
This bit enables or disables a weak pull-up device on the pad.
The effective resistance of the pull-up is nominally 240 kΩ.
Bit 0, MCKO Pull-Down Enable
This bit enables or disables a weak pull-down device on the pad.
The effective resistance of the pull-down is nominally 240 kΩ.
Default
0
1
0