Datasheet > SP5070FMP

SP5070FMP

更新时间： 2024-11-25 22:42:51

品牌	Logo	应用领域
MITEL		光电二极管
页数	文件大小	规格书
7页	182K
描述
2.GHz Fixed Modulus Frequency Synthesiser

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SP5070FMP 数据手册

SP5070

2.GHz Fixed Modulus Frequency Synthesiser

DS3966-2.2 May 996

The SP5070 is a single modulus frequency synthesiser

for use in Satellite TV receivers and together with an

appropriate voltage controlled oscillator (VCO), forms a

complete phase locked loop (PLL) synthesiser. The circuit

consists of a prescaler with preampliﬁer and a ﬁxed modulus

divider. The phase comparator is fed with a reference

frequency derived from an external oscillator or crystal. The

comparator has a charge pump output ampliﬁer stage

around which feedback may be applied. Only an external

transistor is required for varicap line driving.

V_CC

RF INPUT

TEST 1

TEST 2

SP5070 ¹¹

CPDIS

REF IN/CRYSTAL

OSCILLATOR CAPACITOR

FEATURES

V_EE

■ Low Power Consumption (5V, 47mA typ.)

■ Prescaler and Preampliﬁer Included

■ Charge Pump Ampliﬁer with Feedback Point

■ Charge Pump Disable Facility

■ Synthesises Frequencies up to 2.4GHz

■ Pin and Function Compatible with SP5060 and

SP5062

DRIVE OUTPUT

CHARGE PUMP

DP14

TEST 1

V_CC

RF INPUT

TEST 2

SP5070F

CPDIS

■ Full ESD Protection*

* Normal ESD handling procedures should be observed.

REF IN/CRYSTAL

OSCILLATOR CAPACITOR

V_EE

APPLICATIONS

■ Satellite TV

DRIVE OUTPUT

CHARGE PUMP

■ High IF Cable Tuning Systems

■ C-Band with Frequency Doubling Mixer

MP14

Fig.1 Pin connections - top view

ORDERING INFORMATION

SP5070 DP

- (14 Lead Plastic Package)

SP5070F MP

- (14 Lead Miniature Plastic Package)

RF IN

FIXED

PRESCALER

PUMP

DRIVE

MODULUS

DIVIDER

¸ 8192

PRE

AMP

RF IN

¸ 32

FDIV

CHARGE

PUMP

PHASE

COMP

FCOMP

REFERENCE

DIVIDER

¸ 1024

OUTPUT

BUFFER

OSCILLATOR REF IN/

CAPACITOR

TEST 1 TEST 2

CPDIS

CRYSTAL

Fig.2 Block diagram of SP5070

12 3 4 5 6 7

中文翻译

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