IDT5V9885 View Datasheet(PDF) - Integrated Device Technology
Part Name
Description
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IDT5V9885 Datasheet PDF : 37 Pages
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IDT5V9885
3.3V EEPROM PROGRAMMABLE CLOCK GENERATOR
INDUSTRIAL TEMPERATURE RANGE
RAM (PROGRAMMING REGISTER) TABLES
BIT #
(Default Settings)
Default
ADDR 7 6 5 4 3 2 1 0 Register
7
Hex Value
BIT #
6
5
4
3
2
1
0
DESCRIPTION
0x1F 0 0 0 0 0 0 0 0
00
OEM1[1;0]
SLEW1[1:0]
INV1
Configuring Output OUT1
INV1=Output Inversion for OUT1 ("0"= Non-Invert (Default), "1"=Invert);
SLEW1=Slew Rate Settings for OUT1 output ("00"= 2.75V/ns (Default), "01"=2V/ns, "10"=1.25V/ns, "11"=0.7V/ns);
OEM1= Output Enable Mode for OUT1 output, when used with OE1 bit and SHUTDOWN/OE pin ("0x" = Tri-state (Default), "10"=Park
Low, "11"=Park High);
Address 0x1F, Bits 3, 1, 0 are reserved and should be set to "0"
0x20 0 0 0 0 0 0 0 0
0x21 0 0 0 0 0 0 0 0
0x22 0 0 0 0 0 0 0 0
0x23 0 0 0 0 0 0 0 0
0x24 0 0 0 0 0 0 0 0
0x25 0 0 0 0 0 0 0 0
0x26 0 0 0 0 0 0 0 0
0x27 0 0 0 0 0 0 0 0
0x28 0 0 0 0 0 0 0 0
0x29 0 0 0 0 0 0 0 0
0x2A 0 0 0 0 0 0 0 0
0x2B 0 0 0 0 0 0 0 0
0x2C 0 0 0 0 0 0 0 0
0x2D 0 0 0 0 0 0 0 0
0x2E 0 0 0 0 0 0 0 0
0x2F 0 0 0 0 0 0 0 0
0x30 0 0 0 0 0 0 0 0
0x31 0 0 0 0 0 0 0 0
0x32 0 0 0 0 0 0 0 0
0x33 0 0 0 0 0 0 0 0
0x34 0 1 0 0 0 1 1 0
0x35 0 1 0 1 0 1 0 1
0x36
0x37
0x38 0 0 0 0 0 0 0 0
0x39 0 0 0 0 0 0 0 0
0x3A 0 0 0 0 0 0 0 0
0x3B 0 0 0 0 0 0 0 0
0x3C 0 0 0 0 0 0 0 0
0x3D 0 0 0 0 0 0 0 0
0x3E 0 0 0 0 0 0 0 0
0x3F 0 0 0 0 0 0 0 0
00
ODIV1_CONFIG0
IP1[2:0]_CONFIG0
RZ1[3:0]_CONFIG0
00
ODIV1_CONFIG1
IP1[2:0]_CONFIG1
00
ODIV1_CONFIG2
IP1[2:0]_CONFIG2
00
ODIV1_CONFIG3
IP1[2:0]_CONFIG3
00
CP1[3:0]_CONFIG0
00
CP1[3:0]_CONFIG1
00
CP1[3:0]_CONFIG2
RZ1[3:0]_CONFIG1
RZ1[3:0]_CONFIG2
RZ1[3:0]_CONFIG3
CZ1[3:0]_CONFIG0
CZ1[3:0]_CONFIG1
CZ1[3:0]_CONFIG2
PLL1 LOOP FILTER SETTING
Loop Filter Values for PLL1 - For 4 Configurations (Default value is '0');
CONFIG0 will be selected if GINx are disabled and operating in MFC mode.
ODIV1_CONFIGx=Determines which one of the 2 "Qx-Divider" Configurations to use with, for any of the "Qx-Divider" block associated
with PLL1; Used in MFC mode; Default ODIV value is "0", and use CONFIG0 of Qx-Divider;
Resistor = 0.3KΩ + RZ1[3:0] * 1KΩ, 0.3 to 15.3kOhm with 1kOhm Step, ("0000"=0.3kOhm, "0001"=1.3kOhm, "0010"=2.3kOhm, ...);
Zero capacitor = 6pF + CZ1[3:0] * 27.2pF, 6pF to 414pF with 27.2pF Step, ("0000"=6pF, "0001"=33.2pF, "0010"=60.4pF", ...);
Pole capacitor = 1.3pF + CP1[3:0] * 0.75pF, 1.3pF to 12.55pF with 0.75pF Step, ("0000"=1.3pF, "0001"=2.05pF, "0010"=2.8pF, ...)
Charge pump current = 5 * 2^IP1[2:0] μA, 5uA to 640uA with 5, 10, 20, 40, ... binary step;
00
CP1[3:0]_CONFIG3
CZ1[3:0]_CONFIG3
00
D1[7:0]_CONFIG0
00
D1[7:0]_CONFIG1
PLL1 INPUT DIVIDER D1 SETTING
00
D1[7:0]_CONFIG2
PLL1 D-Divider Values (Prescaler) - For 4 Configurations (Default value is '0');
00
D1[7:0]_CONFIG3
00
N1[7:0]_CONFIG0
00
N1[7:0]_CONFIG1
PLL1 MULTIPLIER SETTING
CONFIG0 will be selected if GINx are disabled and operating in MFC mode.
00
N1[7:0]_CONFIG2
N1[11:0]_CONFIGx - Part of PLL1 M Integer Feedback Divider Values (see equation below) - For 4 Configurations (Default value is '0');
00
N1[7:0]_CONFIG3
A1[3:0]_CONFIGx - Part of PLL1 M Integer Feedback Divider Values (see equation below) - For 4 Configurations (Default value is '0');
SSC_OFFSET1[5:0] - Spread Spectrum Fractional Multiplier Offset Value. See Spread Spectrum Settings in register address range
00
A1[3:0]_CONFIG0
N1[11:8]_CONFIG0
0x68-0x6F
00
A1[3:0]_CONFIG1
N1[11:8]_CONFIG1
Total Multiplier Value M1 = 2 * N1[11:0] + A1 + 1 + SS_OFFSET1 * 1/64
When A1[3:0] = 0 and spread spectrum disabled, M1= 2 * N1[11:0];
When A1[3:0] > 0 and spread spectrum disabled, M1 = 2 * N1[11:0] + A1 + 1 ;
00
A1[3:0]_CONFIG2
N1[11:8]_CONFIG2
(Note: A < N-1, i.e. valid M values are 2, 4, 6, 8, 9, 10, 11, 12, 13, ..., 4095 assuming within fPFD and fVCO spec);
00
A1[3:0]_CONFIG3
N1[11:8]_CONFIG3
46
SRC2[1:0]
55
SRC6[1:0]
SRC1[1:0]
SRC5[1:0]
SRC4[1:0]
SM[1:0]
PRIMCLK
PRIMCLK=Priority Selection for Input Clock ("0"=XTALIN/REF_IN becomes Primary (Default), "1"=CLK_IN becomes Primary);
SM = Switchover Mode ("0x"=Manual, "10"= Auto-NonRevertive, "11"=Auto-Revertive (Default));
Bit 3 is reserved and should be set to "0".
SRC3[1:0]
SRCx[1:0]=Input Source Selection for Output Dividers "Qx" blocks ("00"=Selected Input CLK, "01"=PLL0, "10"=PLL1, "11"=PLL2);
Default on SRC1 is the selected input clock. Default on SRC2-6 is PLL0 which will be powered down.
No RegRiesatedr-OEnxlyists
00
ODIV2_CONFIG0
IP2[2:0]_CONFIG0
00
ODIV2_CONFIG1
IP2[2:0]_CONFIG1
00
ODIV2_CONFIG2
IP2[2:0]_CONFIG2
00
ODIV2_CONFIG3
IP2[2:0]_CONFIG3
00
CP2[3:0]_CONFIG0
00
CP2[3:0]_CONFIG1
00
CP2[3:0]_CONFIG2
00
CP2[3:0]_CONFIG3
RZ2[3:0]_CONFIG0
RZ2[3:0]_CONFIG1
RZ2[3:0]_CONFIG2
RZ2[3:0]_CONFIG3
CZ2[3:0]_CONFIG0
CZ2[3:0]_CONFIG1
CZ2[3:0]_CONFIG2
CZ2[3:0]_CONFIG3
PLL2 LOOP FILTER SETTING
Loop Filter Values for PLL2 - For 4 Configurations (Default value is '0');
CONFIG0 will be selected if GINx are disabled and operating in MFC mode.
ODIV2_CONFIGx=Determines which one of the 2 "Qx-Divider" Configurations to use with, for any of the "Qx-Divider" block associated
with PLL2; Used in MFC mode; Default ODIV value is "0", and use CONFIG0 of Qx-Divider;
Resistor = 0.3KΩ + RZ2[3:0] * 1KΩ, 0.3 to 15.3kOhm with 1kOhm Step, ("0000"=0.3kOhm, "0001"=1.3kOhm, "0010"=2.3kOhm, ...);
Zero capacitor = 6pF + CZ2[3:0] * 27.2pF, 6pF to 414pF with 27.2pF Step, ("0000"=6pF, "0001"=33.2pF, "0010"=60.4pF", ...);
Pole capacitor = 1.3pF + CP2[3:0] * 0.75pF, 1.3pF to 12.55pF with 0.75pF Step, ("0000"=1.3pF, "0001"=2.05pF, "0010"=2.8pF, ...)
Charge pump current = 5 * 2^IP2[2:0] μA, 5uA to 640uA with 5, 10, 20, 40, ... binary step;
33
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