19©2017 Integrated Device Technology, Inc December 18, 2017
5X2503 Datasheet
SMBus Table Byte 12: PLL1 Spread Spectrum Control
SMBus Table Byte 13: PLL1 Spread Spectrum Control
SMBus Table Byte 14: PLL1 Spread Spectrum Control
Byte 0Ch Name Control Function Type 0 1 PWD
Bit 7 PLL1_SS_REFDIV23 PLL1 spread spectrum control- Ref divider 23 R/W 0
Bit 6 PLL1_SS_REFDIV[6] PLL1 spread spectrum control- Ref divider 6 R/W 0
Bit 5 PLL1_SS_REFDIV[5] PLL1 spread spectrum control- Ref divider 5 R/W 0
Bit 4 PLL1_SS_REFDIV[4] PLL1 spread spectrum control- Ref divider 4 R/W 0
Bit 3 PLL1_SS_REFDIV[3] PLL1 spread spectrum control- Ref divider 3 R/W 0
Bit 2 PLL1_SS_REFDIV[2] PLL1 spread spectrum control- Ref divider 2 R/W 0
Bit 1 PLL1_SS_REFDIV[1] PLL1 spread spectrum control- Ref divider 1 R/W 0
Bit 0 PLL1_SS_REFDIV[0] PLL1 spread spectrum control- Ref divider 0 R/W 0
Byte 0Dh Name Control Function Type 0 1 PWD
Bit 7 PLL1_SS_FBDIV[7] PLL1 spread spectrum - feedback divider 7 R/W 0
Bit 6 PLL1_SS_FBDIV[6] PLL1 spread spectrum - feedback divider 6 R/W 0
Bit 5 PLL1_SS_FBDIV[5] PLL1 spread spectrum - feedback divider 5 R/W 0
Bit 4 PLL1_SS_FBDIV[4] PLL1 spread spectrum - feedback divider 4 R/W 0
Bit 3 PLL1_SS_FBDIV[3] PLL1 spread spectrum - feedback divider 3 R/W 0
Bit 2 PLL1_SS_FBDIV[2] PLL1 spread spectrum - feedback divider 2 R/W 0
Bit 1 PLL1_SS_FBDIV[1] PLL1 spread spectrum - feedback divider 1 R/W 0
Bit 0 PLL1_SS_FBDIV[0] PLL1 spread spectrum - feedback divider 0 R/W 0
Byte 0Eh Name Control Function Type 0 1 PWD
Bit 7 PLL1_SS_FBDIV[15] PLL1 spread spectrum - feedback divider 15 R/W 0
Bit 6 PLL1_SS_FBDIV[14] PLL1 spread spectrum - feedback divider 14 R/W 0
Bit 5 PLL1_SS_FBDIV[13] PLL1 spread spectrum - feedback divider 13 R/W 0
Bit 4 PLL1_SS_FBDIV[12] PLL1 spread spectrum - feedback divider 12 R/W 0
Bit 3 PLL1_SS_FBDIV[11] PLL1 spread spectrum - feedback divider 11 R/W 0
Bit 2 PLL1_SS_FBDIV[10] PLL1 spread spectrum - feedback divider 10 R/W 0
Bit 1 PLL1_SS_FBDIV[09] PLL1 spread spectrum - feedback divider 9 R/W 0
Bit 0 PLL1_SS_FBDIV[08] PLL1 spread spectrum - feedback divider 8 R/W 0
20©2017 Integrated Device Technology, Inc December 18, 2017
5X2503 Datasheet
SMBus Table Byte 15: Output Divider 1 Control
SMBus Table Byte 16: PLL2 Integer Feedback Divider
SMBus Table Byte 17: PLL2 Integer Feedback Divider
Byte 0Fh Name Control Function Type 0 1 PWD
Bit 7 OUTDIV1[3] Output divider1 control bit 3 R/W
DIV1[3:2]=1,2,4,8; DIV1[1:0]=1,4,5,6;
Default divider = 1x1=1
0
Bit 6 OUTDIV1[2] Output divider1 control bit 2 R/W 0
Bit 5 OUTDIV1[1] Output divider1 control bit 1 R/W 0
Bit 4 OUTDIV1[0] Output divider1 control bit 0 R/W 0
Bit 3 OUTDIV2[3] Output divider2 control bit 3 R/W
DIV2[3:2]=1,2,4,5; DIV2[1:0]=1,3,5,10;
Default divider = 1x10=10
0
Bit 2 OUTDIV2[2] Output divider2 control bit 2 R/W 0
Bit 1 OUTDIV2[1] Output divider2 control bit 1 R/W 1
Bit 0 OUTDIV2[0] Output divider2 control bit 0 R/W 1
Byte 10h Name Control Function Type 0 1 PWD
Bit 7
Reserved R/W 0
Bit 6 Reserved R/W 0
Bit 5
Reserved R/W 0
Bit 4 Reserved R/W 0
Bit 3 Reserved R/W 0
Bit 2 PLL2_FB_INT[10] PLL2 feedback integer divider 10 R/W 0
Bit 1 PLL2_FB_INT[9] PLL2 feedback integer divider 9 R/W 0
Bit 0 PLL2_FB_INT[8] PLL2 feedback integer divider 8 R/W 0
Byte 11h Name Control Function Type 0 1 PWD
Bit 7 PLL2_FB_INT_DIV[7] PLL2 feedback integer divider 7 R/W 0
Bit 6 PLL2_FB_INT_DIV[6] PLL2 feedback integer divider 6 R/W 0
Bit 5 PLL2_FB_INT_DIV[5] PLL2 feedback integer divider 5 R/W 1
Bit 4 PLL2_FB_INT_DIV[4] PLL2 feedback integer divider 4 R/W 1
Bit 3 PLL2_FB_INT_DIV[3] PLL2 feedback integer divider 3 R/W 1
Bit 2 PLL2_FB_INT_DIV[2] PLL2 feedback integer divider 2 R/W 1
Bit 1 PLL2_FB_INT_DIV[1] PLL2 feedback integer divider 1 R/W 0
Bit 0 PLL2_FB_INT_DIV[0] PLL2 feedback integer divider 0 R/W 0
21©2017 Integrated Device Technology, Inc December 18, 2017
5X2503 Datasheet
SMBus Table Byte 18: PLL2 Fractional Feedback Divider
SMBus Table Byte 19: PLL2 Fractional Feedback Divider
SMBus Table Byte 20: PLL2 Spread Spectrum Control
Byte 12h Name Control Function Type 0 1 PWD
Bit 7 PLL2_FB_FRC_DIV[7] PLL2 feedback fractional divider 7 R/W 0
Bit 6 PLL2_FB_FRC_DIV[6] PLL2 feedback fractional divider 6 R/W 0
Bit 5 PLL2_FB_FRC_DIV[5] PLL2 feedback fractional divider 5 R/W 0
Bit 4 PLL2_FB_FRC_DIV[4] PLL2 feedback fractional divider 4 R/W 0
Bit 3 PLL2_FB_FRC_DIV[3] PLL2 feedback fractional divider 3 R/W 0
Bit 2 PLL2_FB_FRC_DIV[2] PLL2 feedback fractional divider 2 R/W 0
Bit 1 PLL2_FB_FRC_DIV[1] PLL2 feedback fractional divider 1 R/W 0
Bit 0 PLL2_FB_FRC_DIV[0] PLL2 feedback fractional divider 0 R/W 0
Byte 13h Name Control Function Type 0 1 PWD
Bit 7 PLL2_FB_FRC_DIV[15] PLL2 feedback fractional divider 15 R/W 0
Bit 6 PLL2_FB_FRC_DIV[14] PLL2 feedback fractional divider 14 R/W 0
Bit 5 PLL2_FB_FRC_DIV[13] PLL2 feedback fractional divider 13 R/W 0
Bit 4 PLL2_FB_FRC_DIV[12] PLL2 feedback fractional divider 12 R/W 0
Bit 3 PLL2_FB_FRC_DIV[11] PLL2 feedback fractional divider 11 R/W 0
Bit 2 PLL2_FB_FRC_DIV[10] PLL2 feedback fractional divider 10 R/W 0
Bit 1 PLL2_FB_FRC_DIV[9] PLL2 feedback fractional divider 9 R/W 0
Bit 0 PLL2_FB_FRC_DIV[8] PLL2 feedback fractional divider 8 R/W 0
Byte 14h Name Control Function Type 0 1 PWD
Bit 7 PLL2_STEP[7] PLL2 spread step size control bit 7 R/W 0
Bit 6 PLL2_STEP[6] PLL2 spread step size control bit 6 R/W 0
Bit 5 PLL2_STEP[5] PLL2 spread step size control bit 5 R/W 0
Bit 4 PLL2_STEP[4] PLL2 spread step size control bit 4 R/W 0
Bit 3 PLL2_STEP[3] PLL2 spread step size control bit 3 R/W 0
Bit 2 PLL2_STEP[2] PLL2 spread step size control bit 2 R/W 0
Bit 1 PLL2_STEP[1] PLL2 spread step size control bit 1 R/W 0
Bit 0 PLL2_STEP[0] PLL2 spread step size control bit 0 R/W 0

5X2503-000NDGI

Mfr. #:
Manufacturer:
IDT
Description:
Clock Generators & Support Products Microclock Programmable Clock Generator
Lifecycle:
New from this manufacturer.
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