ADRF6720ACPZ-R7 datasheet(35/44 Pages) AD

部件名	ADRF6720ACPZ-R7

功能描述	Wideband Quadrature Modulator with Integrated Fractional-N PLL and VCOs

PDF	44 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

35 / 44 page

Data Sheet

ADRF6720

Table 21. Bit Descriptions for CP_CTL

Bits

Bit Name

Settings

Description

Reset

Access

CP_SEL

Charge Pump Reference Current Select.

0x0

Internal Charge Pump.

External Charge Pump.

[13:10]

CP_CSCALE

Charge Pump Coarse Scale Current.

0x3

0001

250 μA.

0011

500 μA.

0111

750 μA.

1111

1000 μA.

[5:0]

CP_BLEED

Charge Pump Bleed.

0x26

000000

0 μA

000001

15.625 μA Sink.

000010

31.25 μA Sink.

000011

46.875 μA Sink.

…

011111

484.375 μA Sink.

100000

0 μA.

100001

15.625 μA Source.

100010

31.25 μA Source.

100011

46.875 μA Source.

…

111111

484.375 μA Source.

Address: 0x21, Reset: 0x000B, Name: PFD_CTL

Table 22. Bit Descriptions for PFD_CTL

Bits

Bit Name

Settings

Description

Reset

Access

[6:4]

REF_MUX_SEL

Reference (REF) Output Mux Select.

0x0

000

LOCK_DET.

001

VPTAT.

010

REFCLK.

011

REFCLK/2.

100

REFCLK × 2.

101

REFCLK/8.

110

REFCLK/4.

PFD_POLARITY

Set PFD Polarity.

0x1

Positive.

Negative.

Rev. 0 | Page 35 of 44

ADRF6720ACPZ-R7 数据表(PDF) 35 Page - Analog Devices

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