2795 [NDK]

Crystal Clock Oscillator Two Frequencies-switching Type; 水晶时钟振荡器两种频率切换类型


型号：	2795
厂家：	NIHON DEMPA KOGYO
描述：	Crystal Clock Oscillator Two Frequencies-switching Type 水晶时钟振荡器两种频率切换类型振荡器时钟
文件：	总1页 (文件大小：90K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Crystal Clock Oscillator

Two Frequencies-switching Type

2795 Series

Model name

–6

2795Y Frequency stability of ±±11 ꢀ ±1 .

Application

For compact mobile information equipment, such as PDA and notebook PC

Features

With the adoption of frequency-writing technology, even the tightest

delivery deadline can be met.

Free

Two frequencies: switch from one to the other according to the input

voltage (high or low) of PAD #±.

PLL technology allows this crystal oscillator to support ± to ±25 MHz.

Automatic mounting by taping and IR reflow (lead-free) are possible.

Compact and light with the following dimensions and weight of 5.1 ꢀ 3.2 mm,

±.1 mm, and 1.16 g.

Absolute maꢀimum rating

Power supply voltage (V ) -1.5 to +7.1V DC

Storage temperature range -55 to +±25°C

Specifications

Model

2795Y

C-MOS

41 < F ≤ 71

–21 to +71

±±11

Item

Output level

*±

± ≤ F ≤ 41

±5

71 < F ≤ ±25

Frequency range

(MHz)

(℃)

Operating temperature range

Frequency stability

–6

(×±1 )

+3.3±1.3

Power supply voltage

(V)

Consumption current (+3.3V,25℃) maꢀ (mA)

1.±V_DD/1.9V_DDI_OL=4mA I_OH=–4mA

5/5 (1.±V_DDto 1.9V_DD

45 to 55 (at ±/2V_DD

V_OLmaꢀ/V_OHmin

(V)

(ns)

(%)

Tr maꢀ/Tf maꢀ

)

3/3 (1.2V_DDto 1.8V_DD

41 to 61 (at ±/2V_DD

)

Duty Cycle min. to maꢀ.

)

±5

±1

Load (C ) maꢀ

(pF)

(ms)

Oscillation start time maꢀ

NSA5332A

Number for specifying an order

*±: If you require a product with a frequency not given above, please contact us. *2: If you require a product with an operating temperature range not given above, please contact us.

Dimensions

Output Waveform <C-MOS>

VOH

or 1.8V^DD

1.9V

±/2V^DD

5.1±1.2

or 1.2V^DD

1.±V

VOL

Reference land pattern

±.4

±.2±1.±

#±

C1.5

Duty Cycle = t/T×±11 [%]

2.54

Cby = 1.1±μF

2.54±1.±

n ^{Two Frequencies-switching Function Table}

PAD Connection

#± Input

#3 Input

F±

#±

Freq. Select

GND

Level H (1.7 V min.)

or OPEN is selected.

OUTPUT

Level L (1.2 V maꢀ.) is selected.

How to Specify an Order

Eꢀample ±: When ordering a product with model name: 2795Y, frequency: ±6.9 and 22.5

–6

MHz, frequency stability: ±±11 ꢀ ±1 , and power supply voltage: 3.3 V

When ordering our products, specify them with an “Ordering Code” that consists of the following:

Ordering Code: 2795Y – ±6.911111M – 22.511111M – NSA5332A

Frequency

Number for

Model name –

M –

(up to 9 digits)

specifying an order

If you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales representatives or visit our homepage (http://www.ndk.com/).

cc29_071025_2795Y_100_e1