Datasheet > ML12149-5P

ML12149-5P

更新时间： 2024-01-07 22:44:28

品牌	Logo	应用领域
LANSDALE		振荡器压控振荡器光电二极管输出元件局域网
页数	文件大小	规格书
12页	447K
描述
Low Power Voltage Controlled Oscillator Buffer

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ML12149-5P 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	8
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.3	Is Samacsys：	N
其他特性：	OUTPUT AMPLITUDE ADJUSTMENT CAPABILITY, OPERATES UP TO 1.3 GHZ	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-G8	长度：	4.9 mm
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
标称供电电压 (Vsup)：	3.3 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	3.9 mm
Base Number Matches：	1

ML12149-5P 数据手册

ML12149

Low Power Voltage

Controlled Oscillator Buffer

Legacy Device: Motorola MC12149

The ML12149 is intended for applications requiring high fre-

quency signal generation up to 1300 MHz. An external tank circuit

is used to determine the desired frequency of operation. The VCO

is realized using an emmiter–coupled pair topology. The ML12149

can be used with an emitter PLL IC such as the Motorola

ML12210 1.1 GHz Frequency Synthesizer to realize a complete

PLL sub–system. The device is specified to operate over a voltage

supply range of 2.7 to 5.5 V. It has a typical current consumption

of 15 mA at 3.0 V which makes it attractive for battery operated

handheld systems.

SO 8 = -5P

PLASTIC PACKAGE

CASE 751

(SO–8)

NOTE: The ML12149 is NOT suitable as a crystal oscillator

CROSS REFERENCE/ORDERING INFORMATION

PACKAGE

SO 8

MOTOROLA

MC12149D

LANSDALE

ML12149-5P

• Operated Up to 1.3 GHz

• Space–Efficient 8–Pin SOIC Package

• Low Power 15 mA Typical @ 3.0 V Operation

• Supply Voltage of 2.7 to 5.5 V

Note: Lansdale lead free (Pb) product, as it

becomes available, will be identified by a part

number prefix change from ML to MLE.

• Typical 900 MHz Performance

–Phase Noise – 105 dBc/Hz @ 100 Khz Offset

–Tuning Voltage Sensitivity of 20 MHz/V

• Output Amplitude Adjustment Capability

• Two High Drive Output with an Adjustable Range from

–8.0 to –2.0 dBm

• One Low–Drive Output for Interfacing to a Prescaler

PIN CONNECTIONS

• Operating Temperature Range T = –40 to 85°C

GND

The device has three high frequency outputs which make it

attractive for transceiver applications which require both a transmit

and receive local oscillator (LO) signal as well as a lower ampli-

tude signal to drive the prescaler input of the frequency synthesiz-

er. The outputs Q and QB are available for servicing the receiver

IF and transmitter up–converter single–ended. In receiver applica-

tions, the outputs can be used together if it is necessary to generate

a differential signal for the receiver IF. Because the Q and QB out-

puts are open collector, terminations to the V

supply are

CNTL TANK

REF

required for proper operation. Since the outputs are complementa-

ry, both outputs must be terminated even if only one is needed.

The Q and QB outputs have a nominal drive level of –8dBm to

conserve power. A level adjustment pin (CNTL) is available, which

when tied to ground, boosts the nominal output levels to –2.0

dBm. A low power VCO output (Q2) is also provided to drive the

prescaler input of the PLL. The amplitude of this signal is nomi-

nally 500 mV which is suitable for most prescalers.

(Top View)

External components required for the ML12149 are: (1) tank cir-

cuit (LC network); (2) Inductor/capacitor to provide the termina-

tion for the open collector outputs; and (3) adequate supply voltage

bypassing. The tank circuit consists of a high–Q inductor and var-

actor components. The preferred tank configuration allows the user

to tune the VCO across the full supply range. VCO performance

such as center frequency, tuning voltage sensitivity, and noise char-

acteristics are dependent on the particular components and config-

uration of the VCO tank circuit.

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