CDCE401 datasheet(9/19 Pages) TI

9 / 19 page

www.ti.com

CDCE401

SCAS820 – JUNE 2006

WORD 0:

BIT

NAME

DESCRIPTION/FUNCTION

TYPE

DEFAULT

CXI0

Load capacitance XIN, bit 0

CXI1

Load capacitance XIN, bit 1

CXI2

Load capacitance XIN, bit 2

CXI3

Load capacitance XIN, bit 3

CXI4

Load capacitance XIN, bit 4

CXI5

Load capacitance XIN, bit 5

CXI6

Load capacitance XIN, bit 6

CXI7

Load capacitance XIN, bit 7

WORD 1:

BIT

NAME

DESCRIPTION/FUNCTION

TYPE

DEFAULT

CXO0

Load capacitance XOUT, bit 0

CXO1

Load capacitance XOUT, bit 1

CXO2

Load capacitance XOUT, bit 2

CXO3

Load capacitance XOUT, bit 3

CXO4

Load capacitance XOUT, bit 4

CXO5

Load capacitance XOUT, bit 5

CXO6

Load capacitance XOUT, bit 6

CXO7

Load capacitance XOUT, bit 7

WORD 2:

BIT

NAME

DESCRIPTION/FUNCTION

TYPE

DEFAULT

PD0

Post-divider selection, bit 0

PD1

Post-divider selection, bit 1

PD2

Post-divider selection, bit 2

OG0

Oscillator gain definition, bit 0(1)

OG1

Oscillator gain definition, bit 1(1)

OP0

Oscillator operating-point adjustment, bit 0(1)

OP1

Oscillator operating-point adjustment, bit 1(1)

OP2

Oscillator operating-point adjustment, bit 2(1)

(1)

The oscillator gain bits have impact on the capacitance CBASE. See the table for input capacitance values. The oscillator operating-point

bits OP[2:0] are used to set the bias point of the oscillator core stage. In combination with setting the post-divider ratio PD[2:0] = 111,

the current consumption can be optimized to set oscillator core current consumption for lower frequencies and higher frequencies. This

ensures that the oscillator core is in operating optimally for phase noise and low XTAL-drive power. Setting core power too high impacts

XTAL-drive power, which affects the lifetime of the crystal.

Submit Documentation Feedback

CDCE401 bảng dữ liệu(PDF) 9 Page - Texas Instruments

CDCE401 bảng dữ liệu(HTML) 9 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

bảng dữ liệu tải về

Link URL