Datasheet > DSC2042

DSC2042

更新时间： 2023-12-06 20:11:26

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
6页	522K
描述
The DSC2042 series of high performance dual output oscillators utilize a proven silicon MEMS techn

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DSC2042 数据手册

Low-Jitter Configurable HCSL-LVPECL Oscillator

DSC2042

Pin Description

Pin No.

Pin Name Pin Type

Description

Enables outputs when high and disables when low

Leave unconnected or grounded

Ground

Enable

GND

Power

FS0

FS1

FS2

Least significant bit for frequency selection

Middle bit for frequency selection

Most significant bit for frequency selection

Positive HCSL Output 1

Negative HCSL Output 1

Negative LVPECL Output 2

Positive LVPECL Output 2

Power Supply 2 for HCSL Output 2

Power Supply

Output1+

Output1-

Output 2-

Output 2+

VDD2

VDD

Power

Leave unconnected or grounded

Operational Description

The DSC2042 is a dual oscillator with an HCSL

output and an LVPECL output. The device

consists of a MEMS resonator and a support

memory (OTP).

coefficients required by the PLL for up to eight

different frequency combinations. Three

control pins (FS0 – FS2) select the output

frequency combination. Discera supports

customer defined versions of the DSC2042.

Standard frequency options are described in in

the following sections.

This memory stores all

PLL IC.

The two outputs are generated

through independent 8-bit programmable

dividers from the output of the internal PLL.

Two constraints are imposed on the output

frequencies: 1) f₂=M x f₁/N, where M and N

are even integers between 4 and 254, 2)

1.2GHz < N x f₂< 1.7GHz.

When Enable (pin 1) is floated or connected to

VDD, the DSC2042 is in operational mode.

Driving Enable to ground will tri-state both

output drivers (hi-impedance mode).

The actual frequencies output by the DSC2042

are controlled by an internal pre-programmed

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与DSC2042相关器件

型号	品牌	描述	获取价格	数据表
DSC2042FE1	MICREL	Low-Jitter Configurable HCSL-LVPECL Oscillator	获取价格
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DSC2042FE5	MICREL	Low-Jitter Configurable HCSL-LVPECL Oscillator	获取价格
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