8V41NS0412集成電路（IC）的時鐘發(fā)生器PLL頻率合成器規(guī)格書PDF中文資料

Description

The 8V41NS0412 is a clock generator with four output dividers:

three integer, and one that is either integer or fractional. When

used with an external crystal, the 8V41NS0412 generates high

performance timing geared towards the communications and

datacom markets, especially for applications demanding

extremely low phase noise, such as 10GE, 40GE, 100G, and

400GE.

The 8V41NS0412’s versatile frequency configurations are

optimized to deliver excellent phase noise performance. The

device delivers an optimum combination of high clock frequency

and low-phase noise performance, combined with high-power

supply noise rejection.

The 8V41NS0412 supports HCSL type of output level on eleven of

its outputs. In addition, there is a single LVCMOS output that has

the option of providing a generated clock or acting as a reference

bypass output.

The device can be configured to deliver specific configurations

under pin control only, or additional configurations through an I2

C

serial interface by an external processor.

The 8V41NS0412 is offered in a lead-free (RoHS6) 64-VFQFN

package.

Features

? Eleven differential HCSL outputs

? One LVCMOS output; input reference can be bypassed to this

output

? The clock input operates in full differential mode (LVDS,

LVPECL) or single-ended LVCMOS mode

? Driven from a crystal or differential clock input

? A 2.4?2.5GHz PLL frequency range supports Ethernet,

SONET, and CPRI frequency plans

? 1.25GHz maximum output frequency

? Four integer output dividers with a range of output divide ratios

(see Table 5)

? One fractional output divider can generate any desired output

frequency

? Support of output power-down

? Excellent clock output phase noise

Offset Output Frequency Single-side Band Phase Noise

100kHz 156.25MHz -143dBc/Hz

? Phase noise RMS, 156.25MHz, 12kHz to 20MHz integration

range: 80fs (typical)

? Selected configurations can be controlled via the use of control

input pins without need for serial port access

? LVCMOS compatible I2

C serial interface gives access to

additional configurations by external processor or in

combination with the control input pins

? Single 3.3V supply voltage

? Lead-free (RoHS 6) 64-VFQFN packaging

? -40°C to 85°C ambient operating temperature