IDT5V49EE904
EEPROM PROGRAMMABLE CLOCK GENERATOR CLOCK SYNTHESIZER
IDT®
EEPROM PROGRAMMABLE CLOCK GENERATOR 28
IDT5V49EE904 REV Q 071015
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.
Q A.B. 07/10/15 Added the following note under AC Timing Electrical Characteristics table:
“Not guaranteed until customer specific configuration is approved by IDT
