Injection-type synchronous narrow-band regenerative phase-locked loop


Application Number: 00108478
Application Date: 2000.06.08
Publication Number: 1328383
Publication Date: 2001.12.26
Priority Information:
International: H03L7/06
Applicant(s) Name: Huawei Technology Co Ltd
Address:
Inventor(s) Name: Huang Lizhong
Patent Agency Code: 00000
Patent Agent:
Abstract An injection-type synchronous narrow-band regenerative phase-locked loop (ISNRPLL) is composed of the synchronous oscillasion loop composed of injection-type synchronous narrow-band regenerative voltage controlled oscillator (ISNRVCO) and XOR frequency-doubling circuit, the phase-locked loop consisting of digital phase discriminator, charge pump and loop filter, and the D flipflop for data output. Its advantages are less external elements and high performance including capture range, capture time and phase noise.