Skip to main content

β: This English translation is in beta — the Traditional-Chinese original is the authoritative version.

Equation Index

This page is auto-generated by scripts/build_equation_index.py from extracted/extracted_equations.json. Entries flagged ⚠️ mean the exact constants/forms still need manual comparison against the PDF.

#ConceptFinal FormulaDerivationSourceNotes
1impulse chargeΔq=i(t)dt\Delta q = \int i(t)\, dtimpulse_to_phase_shiftpaper_001 (general.pdf), around Eq. (9), p.182step
2charge to voltage stepΔV=ΔqCnode\Delta V = \dfrac{\Delta q}{C_{node}}impulse_to_phase_shiftpaper_001, Eq. (9), p.182step
3impulse-to-phase (ISF definition in operational form)Δϕ=Γ(ω0τ)qmaxΔq\Delta\phi = \dfrac{\Gamma(\omega_0\tau)}{q_{max}}\,\Delta qimpulse_to_phase_shiftpaper_001, from Eq. (10)-(11), p.182final
4excess-phase impulse response (LTV)hϕ(t,τ)=Γ(ω0τ)qmaxu(tτ)h_\phi(t,\tau) = \dfrac{\Gamma(\omega_0\tau)}{q_{max}}\,u(t-\tau)isf_definitionpaper_001, Eq. (10), p.182final
5LTV phase response (convolution)ϕ(t)=1qmaxtΓ(ω0τ)in(τ)dτ\phi(t) = \dfrac{1}{q_{max}}\int_{-\infty}^{t}\Gamma(\omega_0\tau)\,i_n(\tau)\,d\tauconvolution_derivationpaper_001, Eq. (11), p.182final
6ISF Fourier seriesΓ(ω0τ)=c02+n=1cncos(nω0τ+θn)\Gamma(\omega_0\tau) = \dfrac{c_0}{2} + \sum_{n=1}^{\infty} c_n\cos(n\omega_0\tau+\theta_n)fourier_series_of_isfpaper_001, Eq. (12), p.183final
7rms ISF (Parseval)n=0cn2=1π02πΓ(x)2dx=2Γrms2\sum_{n=0}^{\infty} c_n^2 = \dfrac{1}{\pi}\int_0^{2\pi}\vert \Gamma(x)\vert ^2 dx = 2\,\Gamma_{rms}^2rms_isfpaper_001, Eq. (20), p.185final
8white noise phase noise (1/f^2)L{Δω}=10log10 ⁣(Γrms2qmax2in2/Δf4Δω2)\mathcal{L}\{\Delta\omega\} = 10\log_{10}\!\left(\dfrac{\Gamma_{rms}^2}{q_{max}^2}\cdot\dfrac{\overline{i_n^2}/\Delta f}{4\,\Delta\omega^2}\right)white_noise_to_phase_noisepaper_001, Eq. (21), p.185final
9flicker noise upconversion (1/f^3)L{Δω}=10log10 ⁣(c02qmax2in2/Δf8Δω2ω1/fΔω)\mathcal{L}\{\Delta\omega\} = 10\log_{10}\!\left(\dfrac{c_0^2}{q_{max}^2}\cdot\dfrac{\overline{i_n^2}/\Delta f}{8\,\Delta\omega^2}\cdot\dfrac{\omega_{1/f}}{\Delta\omega}\right)flicker_noise_upconversionpaper_001, Eq. (23), p.185final
101/f^3 cornerΔω1/f3=ω1/fc022Γrms2\Delta\omega_{1/f^3} = \omega_{1/f}\cdot\dfrac{c_0^2}{2\,\Gamma_{rms}^2}flicker_noise_upconversionpaper_001, Eq. (24), p.185final
11SSB phase noise vs phase PSDL(Δf)12Sϕ(Δf)\mathcal{L}(\Delta f) \approx \tfrac{1}{2} S_\phi(\Delta f)psd_phase_noise_jitterstandard small-angle relation; consistent with paper_001 usagefinal
12phase error to timing errorΔt=Δϕ2πf0\Delta t = \dfrac{\Delta\phi}{2\pi f_0}psd_phase_noise_jitterstandard; used throughout paper_002 and SerDes practicefinal
13phase variance from PSDσϕ2=f1f2Sϕ(f)df\sigma_\phi^2 = \int_{f_1}^{f_2} S_\phi(f)\, dfpsd_phase_noise_jitterstandardfinal
14rms jitter from phase varianceσt=σϕ2πf0=12πf0f1f2Sϕ(f)df\sigma_t = \dfrac{\sigma_\phi}{2\pi f_0} = \dfrac{1}{2\pi f_0}\sqrt{\int_{f_1}^{f_2} S_\phi(f)\, df}serdes_clocking_connectionstandard; SerDes clockingfinal
15accumulated (ring) jitter random walkσΔt=κΔt\sigma_{\Delta t} = \kappa\,\sqrt{\Delta t}lab_03_ring_oscillator_toy_modelpaper_002, Eq. (8), p.792 (kappa via Eq.(12), p.793)final
16ring frequency vs stagesf0=12NτDf_0 = \dfrac{1}{2 N \tau_D}lc_vs_ringpaper_002, Eq. (14), p.794final
17ring rms ISF scalingΓrms=2π23η3  1N1.5    ΓrmsN3/2 (Γrms2N3)\Gamma_{rms}=\sqrt{\dfrac{2\pi^2}{3\eta^3}}\;\dfrac{1}{N^{1.5}}\;\Rightarrow\;\Gamma_{rms}\propto N^{-3/2}\ (\Gamma_{rms}^2\propto N^{-3}) (at η=0.75\eta=0.75, 4/N1.5\approx 4/N^{1.5}, i.e. the solid line in [P2] Fig.8; the radical covers only the constant)lc_vs_ring[P2] Eq.(16), p.794 (v7 re-verified: the radical covers only the constant, ΓrmsN3/2\Gamma_{rms}\propto N^{-3/2}; confirmed by triple evidence — the text's 4/N1.54/N^{1.5}@η=0.75\eta=0.75 and App.B Eq.(55). v3 had misread it as N3/4N^{-3/4})final (verified)
18ring phase noise FOM (white)L{Δf}=83ηkTPVDDVchar(f0Δf)2(min at VT=0: 16γ3η)\mathcal{L}\{\Delta f\}=\dfrac{8}{3\eta}\cdot\dfrac{kT}{P}\cdot\dfrac{V_{DD}}{V_{char}}\cdot\left(\dfrac{f_0}{\Delta f}\right)^2\quad(\text{min at }V_T=0:\ \tfrac{16\gamma}{3\eta})lc_vs_ringpaper_002, Eq. (23),(25), p.796. The prefactor is 8/(3η)8/(3\eta) (η\eta is the stage-delay proportionality constant of Eq.14, 1\approx 1); γ\gamma enters only through Vchar=ΔV/γV_{char}=\Delta V/\gamma. (v2 had erroneously changed it to 8/(3γ)8/(3\gamma) and mislabeled it "verified verbatim"; v3 corrected it against the original PDF p.796.)final (verified)
19Leeson model (comparison only)L(Δω)=10log10 ⁣[2FkTPs(1+(ω02QΔω)2)(1+ω1/f3Δω)]\mathcal{L}(\Delta\omega) = 10\log_{10}\!\left[\dfrac{2FkT}{P_s}\left(1+\left(\dfrac{\omega_0}{2Q\Delta\omega}\right)^2\right)\left(1+\dfrac{\omega_{1/f^3}}{\vert \Delta\omega\vert }\right)\right]equation_indexLeeson (1966), Proc. IEEE 54(2):329-330, DOI 10.1109/PROC.1966.4682 (citation verified; external, not in the 5 PDFs). Discussed in paper_001 intro.reference
20generalized Adler / phase equation (injection)dθdt=(ω0ωinj)+Ω(θ),Ω(θ)=1TinjTinjΓ~(ωinjt+θ)iinj(t)dt,  Γ~=Γ/qmax\frac{d\theta}{dt}=(\omega_0-\omega_{inj})+\Omega(\theta),\quad \Omega(\theta)=\frac{1}{T_{inj}}\int_{T_{inj}}\tilde\Gamma(\omega_{inj} t+\theta)\,i_{inj}(t)\,dt,\ \ \tilde\Gamma=\Gamma/q_{max}paper_003_injection_locking_part1paper_003 (Hong Part I 2019): Γ~=Γ/qmax\tilde\Gamma=\Gamma/q_{max} Eq.(26); time-averaged generalized Adler equation Eq.(30), p.2113 (the original's averaged term carries a plus sign, averaging period TinjT_{inj}); lock range ωL=12IinjΓ~1\omega_L=\tfrac{1}{2} I_{inj}\vert\tilde\Gamma_1\vert Eq.(35), p.2114. On this site Ω(θ)\Omega(\theta) adds with the same sign as the difference frequency (ω0ωinj)(\omega_0-\omega_{inj}), matching the sign convention of [P3].final (verified)
21amplitude perturbation function (APF)Λ~ (APF): d(t,ϕ)=et/τ0, τ0=2Qωosc;Γ~1=1qmax90, Λ~1=τ0qmax0 (quadrature)\tilde\Lambda\ (\text{APF}):\ d(t,\phi)=e^{-t/\tau_0},\ \tau_0=\frac{2Q}{\omega_{osc}};\quad \tilde\Gamma_1=\tfrac{1}{q_{max}}\angle90^\circ,\ \tilde\Lambda_1=\tfrac{\tau_0}{q_{max}}\angle0^\circ\ (\text{quadrature})paper_004_injection_locking_part2paper_004 (Hong Part II 2019), Eq.(25),(26),(27), p.2128 (verified verbatim)final (verified)
22PPV / adjoint (broader literature, NOT in the 5 PDFs)ϕ˙(t)=v1T(t)B(t)ξ(t)(Demir et al. PPV form)\dot{\phi}(t) = v_1^T(t)\, B(t)\, \xi(t)\quad\text{(Demir et al. PPV form)}effective_isfDemir-Mehrotra-Roychowdhury (2000), IEEE TCAS-I 47(5):655-674, DOI 10.1109/81.847872 (citation verified; external, not in the 5 PDFs).reference
23ring kappa (jitter rate)κ=Γrmsqmax12in2Δf(σΔt=κΔt)\kappa=\dfrac{\Gamma_{rms}}{q_{max}}\sqrt{\dfrac{1}{2}\dfrac{\overline{i_n^2}}{\Delta f}}\quad(\sigma_{\Delta t}=\kappa\sqrt{\Delta t})lab_03_ring_oscillator_toy_modelpaper_002, Eq. (12), p.793 (verified verbatim)final (verified)
24ring per-stage device noisein2Δf=4kTγgd0=4kTγμCoxWLΔV\dfrac{\overline{i_n^2}}{\Delta f}=4kT\gamma\,g_{d0}=4kT\gamma\,\mu C_{ox}\dfrac{W}{L}\,\Delta Vdevice_noise_mappingpaper_002, Eq. (17),(18), p.795 (verified verbatim)final (verified)
25Lorentzian carrier lineshapeS(Δω)DD2+Δω2,Δf3dB=Dπ,D=Γrms24qmax2in2Δf=κ22S(\Delta\omega)\propto\dfrac{D}{D^2+\Delta\omega^2},\quad \Delta f_{3\mathrm{dB}}=\dfrac{D}{\pi},\quad D=\dfrac{\Gamma_{rms}^2}{4q_{max}^2}\dfrac{\overline{i_n^2}}{\Delta f}=\dfrac{\kappa^2}{2}lorentzian_linewidthphase random walk -> exponential carrier autocorrelation -> Lorentzian; resolves 1/f^2 divergence at Df->0. ISF map corrected v5 (was /(2q^2); MC-adjudicated, lab_23). Background: Demir 2000 [E2].final (verified)
26Allan variance from PSDσy2(τ)=20Sy(f)sin4(πfτ)(πfτ)2df,Sy=f2f02Sϕ\sigma_y^2(\tau)=2\int_0^\infty S_y(f)\dfrac{\sin^4(\pi f\tau)}{(\pi f\tau)^2}\,df,\quad S_y=\dfrac{f^2}{f_0^2}S_\phiallan_variancewhite/flicker/RW FM -> sigma_y ~ tau^-0.5, tau^0, tau^0.5. External: Allan 1966 [E1-ext].final
27PLL output phase-noise budgetSout=(SrefN2+Scp)Hlp2+SvcoHhp2S_{out}=(S_{ref}N^2+S_{cp})\lvert H_{lp}\rvert^2+S_{vco}\lvert H_{hp}\rvert^2pll_noise_budgetsum of all PLL noise sources shaped by their transfer; optimal loop BW minimizes integrated jitter.final
28ISF as harmonic transfer vector (HTM)input at foutput at f+kf0 with gain ck (ISF Fourier coeff)\text{input at } f \to \text{output at } f+kf_0 \text{ with gain } c_k\ (\text{ISF Fourier coeff})ltv_htmrigorous LTV / harmonic transfer matrix view; ISF is the phase output's HTM row. External: Zadeh 1950 [E5].reference

v5–v8 additions (jitter kernels, diffusion dictionary, asymmetric closed form, [P3]/[P4] advanced, ring correlated noise)

This section consolidates the headline equations added in the v5–v8 development waves. Columns match the main table above, plus an "On-site source" column naming the derivation section within the teaching page. Each row is transcribed verbatim from the corresponding teaching page (not re-derived here); the teaching pages themselves have already been checked against the paper PDFs.

#ConceptFinal FormulaDerivationSourceOn-site sourceNotes
29timing error = sampled phase (TIE kernel)σTIE2=1ω02f1f2Sϕ(f)df\sigma_{\text{TIE}}^2=\dfrac{1}{\omega_0^2}\displaystyle\int_{f_1}^{f_2}S_\phi(f)\,dfjitter_kernelsderived on this site; isomorphic to paper_002 Eq.(46)-(49), p.803 (Khinchin route)Step 3, "Kernel (a): TIE"final
30N-period jitter kernel 4sin2(πfNT)4\sin^2(\pi fNT)σP2(N)=1ω020Sϕ(f)4sin2(πfNT)df\sigma_P^2(N)=\dfrac{1}{\omega_0^2}\displaystyle\int_0^\infty S_\phi(f)\,4\sin^2(\pi fNT)\,dfjitter_kernelsderived on this site; the kernel is equivalent (verified verbatim via the one-sided/two-sided conversion) to paper_002 Eq.(49), p.803 (one-sided 4sin24\sin^2)Step 3, "Kernel (b): N-period"final (verified)
31cycle-to-cycle jitter kernel 16sin4(πfT)16\sin^4(\pi fT)σc2c2=1ω020Sϕ(f)16sin4(πfT)df\sigma_{c2c}^2=\dfrac{1}{\omega_0^2}\displaystyle\int_0^\infty S_\phi(f)\,16\sin^4(\pi fT)\,dfjitter_kernelsderived on this site; paper_002 Eq.(51), p.803 (cycle-to-cycle; this site distinguishes two competing definitions)Step 3, "Kernel (c): cycle-to-cycle"final (verified)
32white-FM closed form (kernel integral = [P2] random walk)σΔϕ2(N)=κ2NT(κ2=Γrms2Si/(2qmax2))\sigma_{\Delta\phi}^2(N)=\kappa^2\,NT\quad(\kappa^2=\Gamma_{rms}^2 S_i/(2q_{max}^2))jitter_kernelspaper_002, Eq.(8)/(11)/(12), p.792-793 (verified); this site's frequency-domain kernel integral recovers it exactlyStep 4, "White-FM closed form"final (verified)
33[P2] Eq.(45)-(51), p.803 (jitter from phase spectrum, autocorrelation/Khinchin)Rϕ(τ)=Sϕ(f)ej2πfτdfR_\phi(\tau)=\displaystyle\int_{-\infty}^{\infty}S_\phi(f)e^{j2\pi f\tau}df (two-sided, Eq.48); σΔϕ2=8ω020Sϕ(f)sin2(πfτ)df\sigma_{\Delta\phi}^2=\dfrac{8}{\omega_0^2}\displaystyle\int_0^\infty S_\phi(f)\sin^2(\pi f\tau)\,df (Eq.49); κ=Δff010L{Δf}/20\kappa=\dfrac{\Delta f}{f_0}10^{-\mathcal{L}\{\Delta f\}/20} (Eq.50)jitter_kernelspaper_002, Eq.(45)-(51), p.803 (v5 verified verbatim; see section "Which papers/equations this corresponds to")Section "Which papers/equations this corresponds to"final (verified)
34diffusion dictionary's protagonist κ2\kappa^2 ([P2] Eq.11)κ2Γrms22qmax2in2Δf [rad2/s]\kappa^2\equiv\dfrac{\Gamma_{rms}^2}{2q_{max}^2}\cdot\dfrac{\overline{i_n^2}}{\Delta f}\ [\text{rad}^2/\text{s}] (canonical 0.1250.125)diffusion_dictionarypaper_002, Eq.(11), p.793 (verified verbatim)Step 0, "There is only one protagonist"final (verified)
35D=κ2/2D=\kappa^2/2 (convention B, adopted by this site's spec)D=Γrms24qmax2in2Δf=κ22D=\dfrac{\Gamma_{rms}^2}{4q_{max}^2}\dfrac{\overline{i_n^2}}{\Delta f}=\dfrac{\kappa^2}{2} (canonical 0.06250.0625)diffusion_dictionarycorresponds to the Demir 2000 convention (external literature); v5 correction (v3 had mistakenly used convention A's value D=κ2D=\kappa^2)Section "Outfit two: D"final (verified)
36Lorentzian FWHM =κ2/2π=\kappa^2/2\pi (=D/π, v5 mapping)Δf3dB=κ22π=Dπ\Delta f_{3\mathrm{dB}}=\dfrac{\kappa^2}{2\pi}=\dfrac{D}{\pi} (canonical 19.919.9 mHz; true LC 39.839.8 mHz)diffusion_dictionaryderived from paper_002 Eq.(11)'s κ2\kappa^2; external literature Demir 2000 [E2] for the Lorentzian mechanismSection "Outfit three: Lorentzian 3-dB linewidth"final (verified)
37b2b_{-2}: 1/f² phase PSD coefficientSϕ(f)=2κ2(2πf)2b2f2 [rad2/Hz], b2=κ22π2S_\phi(f)=\dfrac{2\kappa^2}{(2\pi f)^2}\equiv\dfrac{b_{-2}}{f^2}\ [\text{rad}^2/\text{Hz}], \ b_{-2}=\dfrac{\kappa^2}{2\pi^2} (canonical 6.33×1036.33\times10^{-3})diffusion_dictionaryconsistent with paper_001 Eq.(21), p.185 (the /4/4 version) and the time-domain derivation in white_noise_to_phase_noiseSection "Outfit four: 1/f² phase PSD coefficient"final (verified)
38App.B Γrms2(N,A)\Gamma_{rms}^2(N,A) closed form (asymmetric triangular ISF)Γrms2=2π23η31N3[41+A3(1+A)3]\Gamma_{rms}^2=\dfrac{2\pi^2}{3\eta^3}\dfrac{1}{N^3}\Big[4\dfrac{1+A^3}{(1+A)^3}\Big] (exactly reduces to Eq.16 at A=1A=1)asymmetric_isf_closed_formpaper_002, App. B, Eq.(52)-(55), p.803 (verified verbatim against this render pass, v8)Steps 1-3final (verified)
39App.B Γdc(N,A)\Gamma_{dc}(N,A) closed form (DC value / source of c0c_0)Γdc=2πη21N2(1A1+A)(c0=2Γdc)\Gamma_{dc}=\dfrac{2\pi}{\eta^2}\dfrac{1}{N^2}\Big(\dfrac{1-A}{1+A}\Big)\quad(c_0=2\Gamma_{dc})asymmetric_isf_closed_formpaper_002, App. B, Eq.(56), p.803 (verified verbatim against this render pass, v8)Step 4final (verified)
40App.B 1/f³ corner closed form (computed directly from N,AN,A)f1/f3=f1/f32ηN(1A)21A+A2f_{1/f^3}=f_{1/f}\cdot\dfrac{3}{2\eta N}\cdot\dfrac{(1-A)^2}{1-A+A^2} ([P1] Eq.24 convention value =2×=2\times this formula)asymmetric_isf_closed_formpaper_002, App. B, Eq.(57), p.803 (verified verbatim against this render pass, v8; corresponds to main-text Eq.7, p.792)Step 5final (verified)
41[P1] Appendix Eq.(31), tangential projectionl=ΔXX˙X˙l=\Delta\vec X\cdot\dfrac{\dot{\vec X}}{\lvert\dot{\vec X}\rvert}isf_from_waveformpaper_001, Appendix, Eq.(31), p.192 (verbatim transcription)Method B, Step 1final (verified)
42[P1] Appendix Eq.(32)-(33): displacement -> time -> phaseΔt=lX˙=ΔXX˙X˙2\Delta t=\dfrac{l}{\lvert\dot{\vec X}\rvert}=\Delta\vec X\cdot\dfrac{\dot{\vec X}}{\lvert\dot{\vec X}\rvert^2} (Eq.32); Δϕ=2πTΔt\Delta\phi=\dfrac{2\pi}{T}\Delta t (Eq.33)isf_from_waveformpaper_001, Appendix, Eq.(32)-(33), p.193 (verbatim transcription)Method B, Steps 2-3final (verified)
43[P1] Appendix Eq.(34)-(36): node-voltage special case, closed-form ISFΔϕi=2πTΔqiCiv˙iv˙2\Delta\phi_i=\dfrac{2\pi}{T}\dfrac{\Delta q_i}{C_i}\dfrac{\dot v_i}{\lvert\dot{\vec v}\rvert^2} (Eq.34); Γi(x)=fijfj2\Gamma_i(x)=\dfrac{f_i'}{\sum_j f_j'^{\,2}} (Eq.36)isf_from_waveformpaper_001, Appendix, Eq.(34)-(36), p.193 (verbatim transcription)Method B, Steps 4-5final (verified)
44[P1] Appendix Eq.(37): second-order-system closed form (f=cosxΓ=sinxf=\cos x\Rightarrow\Gamma=-\sin x)Γ(x)=ff2+f2\Gamma(x)=\dfrac{f'}{f'^{\,2}+f''^{\,2}}isf_from_waveformpaper_001, Appendix, Eq.(37), p.193 (verbatim transcription; verified via the sinusoid self-check)Method B, Step 6final (verified)
45[P1] Appendix Eq.(38): first-derivative approximation (ring-specific)Γi(x)=fi(x)fmax2\Gamma_i(x)=\dfrac{f_i'(x)}{f_{max}'^{\,2}}isf_from_waveformpaper_001, Appendix, Eq.(38), p.193 (verbatim transcription)Method Cfinal (verified)
46[P3] Sec. IV impulse-train Eq.(19)-(21): kick and frequency shiftΔϕ=±qinjqmax\Delta\phi=\pm\dfrac{q_{inj}}{q_{max}} (Eq.19); Δω=ΔϕTinj\Delta\omega=\dfrac{\Delta\phi}{T_{inj}} (Eq.20-21)paper_003_injection_locking_part1paper_003 (Hong Part I 2019), Sec. IV, Eq.(19)-(21), p.2112 (verified)Section "Locking to an impulse train", Steps 1-2final (verified)
47[P3] Eq.(22)-(23): energy balance and impulse-train fundamental amplitudeω0qmax=QIosc\omega_0 q_{max}=Q\,I_{osc} (Eq.22); Iinj=2qinjTinjI_{inj}=\dfrac{2q_{inj}}{T_{inj}} (Eq.23)paper_003_injection_locking_part1paper_003, Sec. IV, Eq.(22)-(23), p.2112 (verified)Section "Locking to an impulse train", Step 4final (verified)
48Lab 36 / [P3] Eq.(38)-(40): acquisition transient, pull-in frequencyωcωLcosθss=ωL2Δω2\omega_c\equiv\omega_L\cos\theta_{ss}=\sqrt{\omega_L^2-\Delta\omega^2} (the ωp\omega_p of [P3] Eq.40); exact solution R(θ(t))=R(θ0)eωctR(\theta(t))=R(\theta_0)e^{-\omega_c t}lab_36_lock_acquisitionpaper_003, Eq.(38)-(40), p.2115 (verified); this site's exact closed-form solution is derived on-site and is equivalent to the tanh form of [P4] Eq.(31)-(32)Section 2.1, "Part (a) acquisition transient"final (verified)
49Lab 36: tilted-washboard barrier and Kramers slip rate (external literature)ΔU+=2ωL[1r2rarccosr]\Delta U_+=2\omega_L\big[\sqrt{1-r^2}-r\arccos r\big]; νslipωc2πeΔU+/D\nu_{slip}\approx\dfrac{\omega_c}{2\pi}e^{-\Delta U_+/D}lab_36_lock_acquisitionthe barrier is derived on this site (from U(θ)=ΔωθωLcosθU(\theta)=-\Delta\omega\theta-\omega_L\cos\theta); the escape rate is Kramers 1940, Risken 1989 (external literature, not in the 5 PDFs on this site)Section 2.2, "Part (b) tilted washboard"reference
50[P3] Eq.(43)-(45): optimal injection waveform and lock-range bound (Cauchy-Schwarz)Irmsiinj2I_{rms}\equiv\sqrt{\langle i_{inj}^2\rangle} (Eq.43); iinj,0(x)=±IrmsΓ~rmsΓ~(x)i_{inj,0}^{*}(x)=\pm\dfrac{I_{rms}}{\tilde\Gamma_{rms}}\tilde\Gamma(x) (Eq.44); ωL=IrmsΓ~rms\omega_L^*=I_{rms}\tilde\Gamma_{rms} (Eq.45)injection_locking_noisepaper_003, Sec. VI, Eq.(43)-(45), pp.2119-2120 (verified verbatim)Section "Injection waveform design", Steps 0-3final (verified)
51[P4] Eq.(28)-(30): M:N subharmonic-locking lock characteristicφ(t)MNωinjt+θ(t)\varphi(t)\equiv\dfrac{M}{N}\omega_{inj}t+\theta(t) (Eq.28); dθdt=ω0MNωinj+1NTinjNTinj ⁣ ⁣Γ~(MNωinjt+θ)iinj(t)dt\dfrac{d\theta}{dt}=\omega_0-\dfrac{M}{N}\omega_{inj}+\dfrac{1}{NT_{inj}}\displaystyle\int_{NT_{inj}}\!\!\tilde\Gamma\Big(\dfrac{M}{N}\omega_{inj}t+\theta\Big)i_{inj}(t)dt (Eq.29); Ω(θ)=12IinjΓ~Ncos(Nθ+Γ~N)\Omega(\theta)=\tfrac12 I_{inj}\vert\tilde\Gamma_N\vert\cos(N\theta+\angle\tilde\Gamma_N) (Eq.30)paper_004_injection_locking_part2paper_004 (Hong Part II 2019), Sec. IV, Eq.(28)-(30), p.2129 (verified)Section "M:N subharmonic locking and ILFD"final (verified)
52[P4] p.2130: M:N lock range (÷N ILFD)ωL=12IinjΓ~N=IinjcN2qmax\omega_L=\dfrac12 I_{inj}\vert\tilde\Gamma_N\vert=\dfrac{I_{inj}\,c_N}{2q_{max}} (half-wave symmetry c2=0\Rightarrow c_2=0\Rightarrow cannot divide by 2)paper_004_injection_locking_part2paper_004, p.2130 (verbatim: "which can be calculated from (30) to be ωL=IinjΓ~N/2\omega_L=I_{inj}\vert\tilde\Gamma_N\vert/2", verified)Section "M:N subharmonic locking and ILFD", Step 4final (verified)
53Differential ring: power/frequency/noise accounting ([P2] Eq.31-33)P=NItailVDDP=N I_{tail}V_{DD} (Eq.31); f0Itail2ηNqmaxf_0\approx\dfrac{I_{tail}}{2\eta N q_{max}} (Eq.32); in2Δf=4kTItail(1Vchar+1RLItail)\dfrac{\overline{i_n^2}}{\Delta f}=4kTI_{tail}\Big(\dfrac{1}{V_{char}}+\dfrac{1}{R_LI_{tail}}\Big) (Eq.33)lc_vs_ringpaper_002, Sec. V-B, Eq.(31)-(33), p.796 (verified verbatim)Step 2b, (a)(b)(d)final (verified)
54Differential ring: phase-noise/jitter floor (explicitly contains NN) ([P2] Eq.34-35)Lmin{Δf}=83ηNkTP(VDDVchar+VDDRLItail)f02Δf2\mathcal{L}_{min}\{\Delta f\}=\dfrac{8}{3\eta}\cdot N\cdot\dfrac{kT}{P}\Big(\dfrac{V_{DD}}{V_{char}}+\dfrac{V_{DD}}{R_LI_{tail}}\Big)\dfrac{f_0^2}{\Delta f^2} (Eq.34); κminN\kappa_{min}\propto\sqrt{N} (Eq.35)lc_vs_ringpaper_002, Sec. V-B, Eq.(34)-(35), p.796 (verified verbatim); at fixed P,f0P,f_0 this is the opposite of the single-ended NN-independence (Eq.23) — phase noise degrades with NNStep 2b, (e)final (verified)
55Ring correlated supply/substrate noise selection rule ([P2] Eq.37-38)ΓΣ(x)n=0N1Γ(x+2πnN)\Gamma_\Sigma(x)\equiv\displaystyle\sum_{n=0}^{N-1}\Gamma\Big(x+\dfrac{2\pi n}{N}\Big) (Eq.37); cΣ,m=Ncmc_{\Sigma,m}=Nc_m (for m0modNm\equiv0\bmod N) or 00 (otherwise) (Eq.38)lab_34_correlated_supplypaper_002, Sec. VI, Eq.(37)-(38), p.797 (verbatim transcription; this site supplies the missing finite-geometric-series proof)Sections 2.1-2.2final (verified)
56ADEV flicker-FM floor (prefactor self-derived on this site)σy2=2ln2h1 (independent of τ)σy,floor=2ln2h11.1774h1\sigma_y^2=2\ln2\cdot h_{-1}\ (\text{independent of }\tau)\quad\sigma_{y,\text{floor}}=\sqrt{2\ln2\cdot h_{-1}}\approx1.1774\sqrt{h_{-1}}allan_variancederived on this site from the ADEV frequency-domain integral kernel I3=0sin4u/u3du=ln2I_3=\int_0^\infty\sin^4u/u^3\,du=\ln2; consistent with the standard result in IEEE Std 1139 / NIST SP 1065 (external literature)Section "Complete prefactor table"final (verified)
57PLL type-II peaking closed formHlpmax2=(s+1)2(s1)(s+3), fpk=fn2s+1, s=1+8ζ2\lvert H_{lp}\rvert^2_{max}=\dfrac{(s+1)^2}{(s-1)(s+3)},\ f_{pk}=f_n\sqrt{\dfrac{2}{s+1}},\ s=\sqrt{1+8\zeta^2} (at ζ=1/2\zeta=1/\sqrt2 the peak is exactly the golden ratio φ=1.618\varphi=1.618, i.e. 2.092.09 dB)pll_noise_budgetthis site derives the extremum of Hlp2\vert H_{lp}\rvert^2 from spec Section 10.2 algebraically (self-contained derivation); the ζ\zeta\leftrightarrow phase-margin correspondence and the cascaded-0.1-dB rule belong to standard control/telecom literature (external)Section "Supplementary derivation: closed form for peaking"final (verified)
58FOM theoretical ceilingFOM=173.8 dB10log10Feff(T=300 K; this is 1kT, not 2kT)\mathrm{FOM}=173.8\ \text{dB}-10\log_{10}F_{eff}\quad(T=300\text{ K; this is }1\cdot kT\text{, not }2kT)fom_limitderived on this site from the universal form Llin=FeffkT/P(f0/Δf)2\mathcal{L}_{lin}=F_{eff}\,kT/P\,(f_0/\Delta f)^2 implicit in paper_001 Eq.(21) and paper_002 Eq.(23); Cref=173.83C_{ref}=173.83 dB is a direct calculation from k=1.380649×1023k=1.380649\times10^{-23} J/K, T=300T=300 KSteps 0-1final (verified)
59SNR from aperture jitter (ADC, external standard result)SNRjitter=20log10(2πfinσt) [dB]\mathrm{SNR}_{jitter}=-20\log_{10}(2\pi f_{in}\sigma_t)\ [\text{dB}]; ENOB=(SNR1.76)/6.02\mathrm{ENOB}=(\mathrm{SNR}-1.76)/6.02adc_aperture_jitterstandard data-converter textbook result (external literature, not in the 5 PDFs on this site); this site connects it back to the L(Δf)σtSNR\mathcal{L}(\Delta f)\to\sigma_t\to\mathrm{SNR} main lineStep 3, "SNR: the headline formula"reference
60TJ(BER) dual-Dirac extrapolation formulaTJ(BER)=DJδδ+2Q1(BER)σ\mathrm{TJ}(\mathrm{BER})=\mathrm{DJ}_{\delta\delta}+2\,Q^{-1}(\mathrm{BER})\,\sigmadj_dual_diracSerDes industry-standard model (external literature, not in the 5 PDFs on this site); this site derives it step by step from the Q-function tail integralStep 6, "TJ(BER) extrapolation formula"reference
61×N / ÷N phase-scaling rulesideal ×N\times N: Lout=Lin+20log10N\mathcal{L}_{out}=\mathcal{L}_{in}+20\log_{10}N; ideal ÷N\div N: Lout=Lin20log10N\mathcal{L}_{out}=\mathcal{L}_{in}-20\log_{10}Nclock_chain_budgetstandard frequency-synthesis result (external literature); this site derives it step by step from ϕout=Nϕin\phi_{out}=N\phi_{in} or ϕin/N\phi_{in}/N together with Sϕϕ2S_\phi\propto\phi^2Sections "Rule 1" and "Rule 2"final
62Injection-locked OU noise shaping (first-order PLL) and out-of-lock beat frequencySθ(ω)=Snωc2+ω2S_\theta(\omega)=\dfrac{S_n}{\omega_c^2+\omega^2} (corner ωc=ωL2Δω2\omega_c=\sqrt{\omega_L^2-\Delta\omega^2}); out-of-lock ωb=Δω2ωL2\omega_b=\sqrt{\Delta\omega^2-\omega_L^2} ([P4] Eq.34)injection_locking_noisethe corner is a native consequence of [P3] Eq.(40)'s pull-in frequency; attaching noise to the Adler equation and reading off the shaped PSD is standard injection-locking noise theory (external literature: Kurokawa 1973, not in the 5 PDFs on this site); ωb\omega_b is derived on this site by separation of variables and step-by-step integration of the Adler equation, consistent with [P4] Eq.(34), p.2130Part A, Step 3; Part B, Step 2final (verified)

v9 additions (subharmonic / large-injection multiplier)

This section collects the headline formulas added by the subharmonic-injection (ILCM, injection-locked clock multiplier) and [P4] large-injection leftover waves; the LaTeX is copied verbatim from the corresponding teaching pages, not re-derived.

#ConceptFinal Formula推導頁 Derivation來源 SourceOn-site locationNotes
63Subharmonic (×N) multiplier lock range — closed form derived from [P4] Eq.(29)Ω(θ)12INΓ~1cos(θ+Γ~1IN),ωL=12INΓ~1\Omega(\theta)\approx\frac12\vert I_N\vert\vert\tilde\Gamma_1\vert\cos\big(\theta+\angle\tilde\Gamma_1-\angle I_N\big),\qquad\omega_L=\frac12\vert I_N\vert\,\vert\tilde\Gamma_1\vertsubharmonic_injectionderived on this site from [P4] Eq.(29), p.2129 (verified) by substituting (M,N)[P4]=(N,1)(M,N)_{[P4]}=(N,1) and averaging term by term; cross-checked against the impulse-train arithmetic of [P3] Sec. IV footnote 7 (p.2112, verified)"Route 1," Step 3final (verified)
64Realignment factor β\beta (the fraction of phase error one pulse pulls back)βqinjΓ~(θss)\beta\equiv-q_{inj}\,\tilde\Gamma'(\theta_{ss}) (stable for 0<β<20\lt\beta\lt2; β/Tinj=ωc=Ω(θss)\beta/T_{inj}=\omega_c=-\Omega'(\theta_{ss}) = the pull-in frequency of [P3] Eq.(40))subharmonic_injectionderived on this site from the linearized per-pulse map θk+1=θk+Δω0NT0+qinjΓ~(θk)\theta_{k+1}=\theta_k+\Delta\omega_0NT_0+q_{inj}\tilde\Gamma(\theta_k) (an extension of the discrete arithmetic in [P3] Sec. IV footnote 7)Section 3final (verified)
65Noise corner of the first-order discrete-time loop (=ΔωL=\Delta\omega_L at Δω=0\Delta\omega=0)fc=β1βfref2πβfref2πf_c=\dfrac{\beta}{1-\beta}\cdot\dfrac{f_{ref}}{2\pi}\approx\dfrac{\beta f_{ref}}{2\pi}; exact discrete closed form fc=fref2πarccos ⁣(1β22(1+β))f_c'=\dfrac{f_{ref}}{2\pi}\arccos\!\big(1-\dfrac{\beta^2}{2(1+\beta)}\big)subharmonic_injectionderived on this site from the H2=1/2\vert H\vert^2=1/2 point of Hosc(z)=(1z1)/(1(1β)z1)H_{osc}(z)=(1-z^{-1})/(1-(1-\beta)z^{-1}); agrees with the continuous-time ωc=ωL2Δω2\omega_c=\sqrt{\omega_L^2-\Delta\omega^2} of injection_locking_noise for ffreff\ll f_{ref}Section 4.2final (verified)
66Closed-form output jitter (time-averaged phase variance)σout2=σw2[(1β)2β(2β)+12]=κ2NT01β+β2/2β(2β)\sigma_{out}^2=\sigma_w^2\Big[\dfrac{(1-\beta)^2}{\beta(2-\beta)}+\dfrac12\Big]=\kappa^2NT_0\cdot\dfrac{1-\beta+\beta^2/2}{\beta(2-\beta)} (σw2=κ2Tinj\sigma_w^2=\kappa^2T_{inj}; MC ratio 0.999)subharmonic_injectionderived on this site from the linearized map's geometric series θk=j(1β)jwkj\theta_k^-=\sum_j(1-\beta)^jw_{k-j}; κ2\kappa^2 is the variance-growth rate of [P2] Eq.(11), p.793 (verified)Section 4.3final (verified)
67Generalized Adler equation (Mirzaei) and the large-injection lock range ([P4] Eq.(8)–(9))dθdt=ω0ωinjω02QIinjsinθIosc+Iinjcosθ\dfrac{d\theta}{dt}=\omega_0-\omega_{inj}-\dfrac{\omega_0}{2Q}\dfrac{I_{inj}\sin\theta}{I_{osc}+I_{inj}\cos\theta} (Eq.8); ωL=ω02QIinjIosc11Iinj2/Iosc2\omega_L=\dfrac{\omega_0}{2Q}\dfrac{I_{inj}}{I_{osc}}\dfrac{1}{\sqrt{1-I_{inj}^2/I_{osc}^2}} (Eq.9)paper_004_large_injection_transientpaper_004 (Hong Part II 2019), Sec. III-A, p.2123 (verbatim transcription, verified)Section 1.1final (verified)
68Effective ISF inversely proportional to amplitude ([P4] Eq.(13))Γ~LC=Γ~1+A\tilde\Gamma_{LC}=\dfrac{\tilde\Gamma}{1+A}paper_004_large_injection_transientpaper_004, Sec. III-C, p.2124 (verbatim transcription, verified)Section 1.2final (verified)

Legend

  • final: the final result formula for that topic.
  • step: an intermediate step in the derivation.
  • reference: an external model used for comparison (not necessarily from the 5 downloaded PDFs).
  • ⚠️: manual_verification_needed = true — please re-check against the original PDF.