AD9937KCPRL datasheet(23/44 Pages) AD

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AD9937

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Table VIII. RS, H1, SHP, SHD, and DOUTPHASE Timing Parameters

Bit Width

(Bits)

Range

Description

RSPOSLOC

Control (Addr 0x06)

0–47 Edge Location

Falling Edge Location for RS

RSNEGLOC

Control (Addr 0x06)

0–47 Edge Location

Falling Edge Location for RS

H1POSLOC

Control (Addr 0x06)

0–47 Edge Location

Positive Edge Location for H1

H1NEGLOC

Control (Addr 0x06)

0–47 Edge Location

Negative Edge Location for H1

SHPLOC

Control (Addr 0x05)

0–47 Edge Location

Sample Location for SHP

SHDLOC

Control (Addr 0x05)

0–47 Edge Location

Sample Location for SHD

DOUTPHASE

Control (Addr 0x05)

0–47 Edge Location

Phase Location of Data Output [9:0]

*The 2 MSB bits are used to select the quadrant.

Table IX. Precision Timing Edge Locations for RS, H1, SHP, SHD, and DOUTPHASE

Quadrant

RS Rising Edge

RS Falling Edge

Signal Name

(Range)

RSPOSLOC

RSNEGLOC

P[0] to P[11]

000000 to 001011

P[12] to P[23]

010000 to 011011

III

P[24] to P[35]

100000 to 101011

P[36] to P[47]

110000 to 111011

Quadrant

H1 Rising Edge

H1 Falling Edge

Signal Name

(Range)

H1POSLOC

H1NEGLOC

P[0] to P[11]

000000 to 001011

P[12] to P[23]

010000 to 011011

III

P[24] to P[35]

100000 to 101011

P[36] to P[47]

110000 to 111011

Quadrant

CDS (SHP) Rising Edge

CDS (SHD) Falling Edge

Signal Name

(Range)

SHPLOC

SHDLOC

CDS (Internal)

P[0] to P[11]

000000 to 001011

P[12] to P[23]

010000 to 011011

III

P[24] to P[35]

100000 to 101011

P[36] to P[47]

110000 to 111011

Quadrant

DOUT Rising Edge

DOUT Falling Edge

Signal Name

(Range)

DOUTPHASE

(Not Programmable)

Data Output[9:0]

P[0] to P[11]

000000 to 001011

DOUTPHASE + 24 Steps

P[12] to P[23]

010000 to 011011

DOUTPHASE + 24 Steps

III

P[24] to P[35]

100000 to 101011

DOUTPHASE + 24 Steps

P[36] to P[47]

110000 to 111011

DOUTPHASE + 24 Steps

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