MPC9229 REVISION 5 DECEMBER 19, 2012

3

©2012 Integrated Device Technology, Inc.

MPC9229 Data Sheet

400MHZ LOW VOLTAGE PECL CLOCK SYNTHESIZER

Table 1. Pin Configurations

Pin

I/O

Default

Type

Function

XTAL_IN, XTAL_OUT

—

—

Analog

Crystal oscillator interface

fOUT, fOUT

Output

—

LVPECL

Differential clock output

TEST

Output

—

LVCMOS

Test and device diagnosis output

S_LOAD

Input

0

LVCMOS

Serial configuration control input

This inputs controls the loading of the configuration latches with the contents of the

shift register. The latches will be transparent when this signal is high, thus the data

must be stable on the high-to-low transition

P_LOAD

Input

1

LVCMOS

Parallel configuration control input

This input controls the loading of the configuration latches with the content of the

parallel inputs (M and N). The latches will be transparent when this signal is low, thus

the parallel data must be stable on the low-to-high transition of P_LOAD. P_LOAD is

state sensitive

S_DATA

Input

0

LVCMOS

Serial configuration data input

S_CLOCK

Input

0

LVCMOS

Serial configuration clock input

M[0:8]

Input

1

LVCMOS

Parallel configuration for PLL feedback divider (M).

M is sampled on the low-to-high transition of P_LOAD.

N[1:0]

Input

1

LVCMOS

Parallel configuration for Post-PLL divider (N)

N is sampled on the low-to-high transition of P_LOAD

OE

Input

1

LVCMOS

Output enable (active high).

The output enable is synchronous to the output clock to eliminate the possibility of runt

pulses on the fOUT output. OE = L low stops fOUT in the logic low state (fOUT = L, fOUT

= H)

GND

Supply

Supply

Ground

Negative power supply (GND).

VCC

Supply

Supply

VCC

Positive power supply for I/O and core. All VCC pins must be connected to

the positive power supply for correct operation.

VCC_PLL

Supply

Supply

VCC

PLL positive power supply (analog power supply).

Table 2. Output Frequency Range and Pll Post-Divider N

N

Output Division

Output Frequency Range

1

0

0

0

1

200 – 400 MHz

0

1

2

100 – 200 MHz

1

0

4

50 – 100 MHz

1

1

8

25 – 50 MHz