
IDT5V49EE904
EEPROM PROGRAMMABLE CLOCK GENERATOR
CLOCK SYNTHESIZER
IDT EEPROM PROGRAMMABLE CLOCK GENERATOR
28
IDT5V49EE904
REV P 092412
Revision History
Rev.
Originator
Date
Description of Change
A
R.Willner
4/22/09
Advance Information.
B
R.Willner
5/04/09
Identified VDDX (crystal oscillator power) and AVDD (analog power) on device.
C
R.Willner
6/04/09
Add default configurations, pull-down resistor values on input pins.
Released Datasheet from Advanced Information.
D
R.Willner
06/10/09
Updates: crystal load specs; “Output Duty Cycle” specs; addresses 0x07, 0x02 and 0xBF
in “Programming Registers” table.
E
R.Willner
08/26/09
Updated 32-pin VFQFPN thermal data
F
R.Willner
10/05/09
Changed IP3[3:0] to IP3[4:0] ; updated “Programming Registers Table”.
G
R.Willner
12/09/09
Increased Max VCO frequency to 1300 MHz
H
R.Willner
02/23/10
Updated Recommended Operation Conditions to include Vddx and AVdd parameters.
J
R.Willner
04/22/11
Added 32-pin QFN Landing Pattern diagram.
K
A. Tsui
07/07/11
Updated package dimension drawing
L
R. Willner
04/17/12
1. Change description for SDAT and SCLK pins.
2. Add new footnotes to pin descriptions table
3. Added section "Crystal Clock Selection"
4. Added logic diagram and Truth table for "SD/OE Pin Function" section.
5. Corrected register readback values for 0x52~0x54 and 0x7C~0x7F.
6. Update to QFN package drawing - exposed thermal pad callout.
M
A. Tsui
06/04/12
1. Updated SD-OE pin description; from (Default is active HIGH) to (Default is active
LOW)
2. Updated “OUTn” column in Truth Table with “High-Z” specs and added footnote 2,
“High-Z regardless of OEM bits”.
3. Updated “SD-OE Pin Function” section to reflect that SP is “0”changed from active
HIGH to active LOW, and SP is “1” changed from active LOW to active HIGH.
N
R.Willner
06/18/12
Added Min/Max spread values to "Spread Spectrum Generation Specifications" table;
fMOD - Max. 120kHz; Down Spread - Min. -0.5%, Max. -4.0%; Center Spread - Min.
±0.25%, Max. ±2.0%
P
R.Willner
09/24/12
Slew Rate (t4) Output Load test conditions were changed from 15pF to 5pF.