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CDC924_08 Datasheet, PDF (6/21 Pages) Texas Instruments – 133Mhz Clock Synthesizer/Driver | |||
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CDC924
133ÄMHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS
WITH 3ÄSTATE OUTPUTS
SCAS607B â NOVEMBER 1998 â REVISED JULY 2005
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)â
Supply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to 4.6 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to 4.6 V
Voltage range applied to any output in the high-impedance state or power-off state,
VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to VDD + 0.5 V
Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ã IOL
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â18 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â50 mA
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0°C to 85°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
â Stresses beyond those listed under âabsolute maximum ratingsâ may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under ârecommended operating conditionsâ is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
DISSIPATION RATING TABLE
PACKAGE
TA ⤠25°C
POWER RATNG
DERATING FACTORâ
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
DL
1558.6 mW
12.468 mW/°C
997.5 mW
810.52 mW
â This is the inverse of the traditional junction-to-case thermal resistance (RθJA) and uses a board-mounted device
at 80.2°C/W.
recommended operating conditions (see Note 2)
MIN NOMâ MAX UNIT
Supply voltage, VDD
3.3 V
2.5 V
3.135
2.375
3.465
V
2.625
High-level input voltage, VIH
2
VDD +
0.3 V
V
Low-level input voltage, VIL
GND â
0.3 V
0.8 V
Input voltage, VI
0
CPUx, CPU_DIV2x
VDD V
â12
High-level output current, IOH
APICx
48MHz, REFx
â12
mA
â14
PCIx, PCI_F, 3V66x
â18
CPUx, CPU_DIV2x
12
Low-level output current, IOL
APICx
48MHz, REFx
12
mA
9
PCIx, PCI_F, 3V66x
12
Reference frequency, f(XIN)â¡
Crystal frequency, f(XTAL)§
Test mode
Normal mode
130
13.8 14.318
MHz
14.8 MHz
Operating free-air temperature, TA
0
85 °C
NOTE 2: Unused inputs must be held high or low to prevent them from floating.
â All nominal values are measured at their respective nominal VDD values.
â¡ Reference frequency is a test clock driven on the XIN input during the device test mode and normal mode. In test mode, XIN can be driven
externally up to f(XIN) = 130 MHz. If XIN is driven externally, XOUT is floating.
§ This is a series fundamental crystal with fO = 14.31818 MHz.
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⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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