STW81101 datasheet(14/42 Pages) STMICROELECTRONICS

전자부품 데이터시트 검색엔진

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STW81101 데이터시트(PDF) 14 Page - STMicroelectronics

부품명	STW81101

상세설명	Multi-band RF frequency synthesizer with integrated VCOs

PDF	42 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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14 / 42 page

Typical performance characteristics

STW81101

14/42

Typical performance characteristics

The phase noise is measured with the Agilent E5052A Signal Source Analyzer. All the

closed-loop measurements are done with fPFD = 400 KHz and using a Reference Clock

signal at 76.8 MHz with phase noise of -135dBc/Hz @1KHz offset, -145dBc/Hz @10KHz

offset and -149.5dBc/Hz @1KHz of noise floor.

Figure 3.

VCO A (Direct output) closed loop

phase noise at 3.6GHz with

FSTEP=400KHz (FPFD=400KHz)

Figure 4.

VCO B (Direct output) closed loop

phase noise at 4.0GHz with

FSTEP=400KHz (FPFD=400KHz)

Figure 5.

VCO A (Div. by 2 output) closed

loop phase noise at 1.8GHz with

FSTEP=200KHz (FPFD=400KHz)

Figure 6.

VCO B (Div. by 2 output) closed

loop phase noise at 2.0GHz with

FSTEP=200KHz (FPFD=400KHz)

0.9° rms

1.0°rms

0.45° rms

0.5°rms

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