ADF4378 datasheet(80/84 Pages) AD

80 / 84 page

Data Sheet

ADF4378

analog.com

Rev. A | 80 of 84

Address: 0x49, Reset: 0x00, Name: REG0049

Figure 186.

Table 114. Bit Descriptions for REG0049

Bits

Bit Name

Description

Reset

Access

EN_SYS

Logic State on ENSR Input Pin. For more information, see Figure 79.

0x0

EN_CLK1

Logic State on ENCLK Input Pin. For more information, see Figure 78.

0x0

SR_OK

1 = SYSREF Input Meets Setup and Hold Time Requirement.

0x0

R049_RSV1

Reserved.

0x0

REF_OK

1 = Reference Input Amplitude Above Reference Peak Detector Threshold.

0x0

ADC_BUSY

1 = ADC Conversion in Progress. For more information, see the VCO Calibration and the Temperature Sensor

sections.

0x0

FSM_BUSY

1 = VCO Calibration in Progress.

0x0

LOCKED

Lock Detector Output.

0x0

Address: 0x4A, Reset: 0x00, Name: REG004A

Figure 187.

Table 115. Bit Descriptions for REG004A

Bits

Bit Name

Description

Reset

Access

[7:0]

R04A_RSV1

Reserved.

0x0

Address: 0x4B, Reset: 0x00, Name: REG004B

Figure 188.

Table 116. Bit Descriptions for REG004B

Bits

Bit Name

Description

Reset

Access

[7:2]

RESERVED

Reserved.

0x0

[1:0]

VCO_CORE

VCO Core Readback. For more information, see the VCO Calibration section.

0x0

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