HMC1044LP3E
v01.0712
Programmable Harmonic low Pass Filter
1 - 3 gHz 3 db banDwiDtH
0
-10
Targeted minimum LO harmonic level
-20
Targeted maximum modulator
sideband rejection
-30
-40
3rd LO Harmonic
-50
-60
2nd LO Harmonic
-70
-80
-80
-70
-60
-50
-40
-30
-20
-10
0
LO HARMONIC LEVEL (dBc)
[1]
Fꢃꢇuꢈꢋ 12. typꢃꢁꢅꢆ ꢃꢉpꢅꢁꢂ ꢄf 2ꢀd ꢅꢀd 3ꢈd lo hꢅꢈꢉꢄꢀꢃꢁ ꢄꢀ ꢉꢄduꢆꢅꢂꢄꢈ ꢊꢃdꢋꢍꢅꢀd ꢈꢋjꢋꢁꢂꢃꢄꢀ.
Figure 12 ꢂhꢅwꢂ ꢃ ꢉypꢁꢊꢃꢄ ꢋꢅduꢄꢃꢉꢅꢆ wꢁꢉh 1xlo ꢁꢈpuꢉ, whꢀꢆꢀ ꢇꢅꢉh ꢉhꢀ 2ꢈd ꢃꢈd 3ꢆd lo hꢃꢆꢋꢅꢈꢁꢊꢂ ꢃffꢀꢊꢉ ꢉhꢀ ꢋꢅduꢄꢃꢉꢅꢆ
ꢂꢁdꢀꢇꢃꢈd ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ ꢃꢉ ꢄꢀvꢀꢄꢂ > -20 dbꢊ ꢆꢀꢄꢃꢉꢁvꢀ ꢉꢅ ꢉhꢀ lo ꢂꢁꢌꢈꢃꢄ pꢅwꢀꢆ. iꢉ ꢃꢄꢂꢅ ꢂhꢅwꢂ ꢉhꢃꢉ ꢉhꢀ 3ꢆd lo
hꢃꢆꢋꢅꢈꢁꢊ hꢃꢂ ꢌꢆꢀꢃꢉꢀꢆ ꢁꢋpꢃꢊꢉ ꢅꢈ ꢋꢅduꢄꢃꢉꢅꢆ ꢂꢁdꢀꢇꢃꢈd ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ ꢉhꢃꢈ ꢉhꢀ 2ꢈd, ꢃꢈd ꢉhꢃꢉ ꢉhꢀꢆꢀ ꢁꢂ ꢄꢁꢉꢉꢄꢀ ꢀffꢀꢊꢉ
ꢅf ꢉhꢀ 2ꢈd lo hꢃꢆꢋꢅꢈꢁꢊ ꢅꢈ ꢋꢅduꢄꢃꢉꢅꢆ ꢂꢁdꢀꢇꢃꢈd ꢆꢀjꢀꢊꢉꢁꢅꢈ ꢅꢈꢊꢀ ꢉhꢀ 2ꢈd lo hꢃꢆꢋꢅꢈꢁꢊ ꢁꢂ ꢇꢀꢄꢅw -20 dbꢊ ꢄꢀvꢀꢄꢂ, ꢆꢀꢄꢃꢉꢁvꢀ
ꢉꢅ ꢉhꢀ lo ꢂꢁꢌꢈꢃꢄ ꢄꢀvꢀꢄ.
thꢀ Hmc1044lP3e ꢁꢂ dꢀꢂꢁꢌꢈꢀd ꢉꢅ ꢀꢈꢂuꢆꢀ ꢉhꢃꢉ ꢉhꢀ 2ꢈd ꢃꢈd ꢉhꢀ 3ꢆd lo hꢃꢆꢋꢅꢈꢁꢊꢂ ꢃꢆꢀ ꢇꢀꢄꢅw -20 dbꢊ ꢆꢀꢄꢃꢉꢁvꢀ ꢉꢅ ꢉhꢀ
lo ꢂꢁꢌꢈꢃꢄ ꢄꢀvꢀꢄ ꢃꢊꢆꢅꢂꢂ ꢉhꢀ ꢀꢈꢉꢁꢆꢀ ꢅpꢀꢆꢃꢉꢁꢈꢌ ꢆꢃꢈꢌꢀ ꢅf Hꢁꢉꢉꢁꢉꢀ’ꢂ wꢁdꢀꢇꢃꢈd Pllꢂ wꢁꢉh ꢁꢈꢉꢀꢌꢆꢃꢉꢀd Vcoꢂ. thꢀꢆꢀꢇy ꢀꢈꢂuꢆꢁꢈꢌ
ꢄꢁꢉꢉꢄꢀ ꢅꢆ ꢈꢅ lo ꢊꢅꢈꢉꢆꢁꢇuꢉꢁꢅꢈ ꢁꢂ ꢃddꢀd ꢉꢅ ꢋꢅduꢄꢃꢉꢅꢆ/dꢀꢋꢅduꢄꢃꢉꢅꢆ ꢂꢁdꢀꢇꢃꢈd/ꢁꢋꢃꢌꢀ ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ dꢀꢌꢆꢃdꢃꢉꢁꢅꢈ.
Uꢊꢃꢀꢇ ꢂhꢋ Hmc1044lP3e
mꢅduꢄꢃꢉꢅꢆ/dꢀꢋꢅduꢄꢃꢉꢅꢆ ꢂꢁdꢀꢇꢃꢈd/ꢁꢋꢃꢌꢀ ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ ꢁꢂ ꢂpꢀꢊꢁfiꢊ ꢉꢅ ꢀꢃꢊh ꢁꢈdꢁvꢁduꢃꢄ ꢋꢅduꢄꢃꢉꢅꢆ/dꢀꢋꢅduꢄꢃꢉꢅꢆ,
ꢃꢈd dꢀpꢀꢈdꢂ ꢅꢈ ꢃ ꢈuꢋꢇꢀꢆ ꢅf ꢅꢉhꢀꢆ vꢃꢆꢁꢃꢇꢄꢀꢂ ꢁꢈꢊꢄudꢁꢈꢌ: ꢉypꢀ (1xlo ꢅꢆ 2xlo ꢁꢈpuꢉ), ꢇꢃꢄꢃꢈꢊꢀ (ꢃꢋpꢄꢁꢉudꢀ ꢃꢈd phꢃꢂꢀ
ꢋꢃꢉꢊhꢁꢈꢌ), ꢂꢁꢌꢈꢃꢄ pꢃꢉh ꢋꢃꢉꢊhꢁꢈꢌ ꢃꢈd ꢁꢈꢉꢀꢆfꢃꢊꢀ ꢉꢅ ꢅꢉhꢀꢆ ꢊꢅꢋpꢅꢈꢀꢈꢉꢂ, ꢇꢅꢃꢆd ꢄꢃyꢅuꢉ, ꢁꢈpuꢉ ꢂꢁꢌꢈꢃꢄ ꢇꢃꢈdwꢁdꢉh, ꢃꢈd lo
hꢃꢆꢋꢅꢈꢁꢊꢂ.
Figure 12 ꢂhꢅwꢂ ꢉhꢃꢉ ꢉypꢁꢊꢃꢄꢄy ꢉhꢀ lo hꢃꢆꢋꢅꢈꢁꢊꢂ ꢂꢉꢅp ꢇꢀꢁꢈꢌ ꢃ dꢅꢋꢁꢈꢃꢈꢉ ꢊꢅꢈꢉꢆꢁꢇuꢉꢅꢆ ꢉꢅ ꢋꢅduꢄꢃꢉꢅꢆ/dꢀꢋꢅduꢄꢃꢉꢅꢆ
ꢂꢁdꢀꢇꢃꢈd/ꢁꢋꢃꢌꢀ ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ dꢀꢌꢆꢃdꢃꢉꢁꢅꢈ ꢅꢈꢊꢀ ꢉhꢀy ꢃꢆꢀ ꢇꢀꢄꢅw ꢃppꢆꢅxꢁꢋꢃꢉꢀꢄy -20 dbꢊ ꢆꢀꢄꢃꢉꢁvꢀ ꢉꢅ ꢉhꢀ lo
ꢂꢁꢌꢈꢃꢄ ꢄꢀvꢀꢄ. Hꢅwꢀvꢀꢆ, ꢉhꢀ ꢀxꢃꢊꢉ ꢄꢀvꢀꢄ ꢃꢉ whꢁꢊh hꢃꢆꢋꢅꢈꢁꢊꢂ ꢊꢀꢃꢂꢀ ꢇꢀꢁꢈꢌ ꢉhꢀ dꢅꢋꢁꢈꢃꢈꢉ ꢊꢅꢈꢉꢆꢁꢇuꢉꢅꢆ ꢉꢅ ꢂꢁdꢀꢇꢃꢈd/ꢁꢋꢃꢌꢀ
ꢆꢀjꢀꢊꢉꢁꢅꢈ pꢀꢆfꢅꢆꢋꢃꢈꢊꢀ dꢀpꢀꢈdꢂ ꢅꢈ ꢀꢃꢊh ꢁꢈdꢁvꢁduꢃꢄ ꢋꢅduꢄꢃꢉꢅꢆ/dꢀꢋꢅduꢄꢃꢉꢅꢆ ꢃꢈd ꢀꢃꢊh ꢁꢈdꢁvꢁduꢃꢄ dꢀꢂꢁꢌꢈ. Hꢀꢈꢊꢀ, ꢉhꢀ
ꢅpꢉꢁꢋꢃꢄ ꢇꢃꢈd ꢂꢀꢄꢀꢊꢉꢁꢅꢈ ꢅf ꢉhꢀ Hmc1044lP3e ꢋꢃy ꢇꢀ dꢁffꢀꢆꢀꢈꢉ fꢅꢆ dꢁffꢀꢆꢀꢈꢉ dꢀꢂꢁꢌꢈꢂ.
Figure 13 ꢂhꢅwꢂ ꢅpꢉꢁꢋꢃꢄ 3ꢆd hꢃꢆꢋꢅꢈꢁꢊ ꢃꢉꢉꢀꢈuꢃꢉꢁꢅꢈ ꢃꢊhꢁꢀvꢀd wꢁꢉh ꢉhꢀ Hmc1044lP3e wꢁꢉhꢅuꢉ ꢅpꢉꢁꢋꢁzꢁꢈꢌ ꢉhꢀ 2ꢈd
hꢃꢆꢋꢅꢈꢁꢊ, whꢀꢈ ꢉhꢀ HMC830LP6GE Pll wꢁꢉh iꢈꢉꢀꢌꢆꢃꢉꢀd Vco ꢁꢂ uꢂꢀd ꢃꢂ ꢃꢈ lo ꢉꢅ dꢆꢁvꢀ ꢉhꢀ HMC697LP4E quꢃdꢆꢃꢉuꢆꢀ
ꢋꢅduꢄꢃꢉꢅꢆ. thꢀ ꢊꢅꢆꢆꢀꢂpꢅꢈdꢁꢈꢌ Hmc1044lP3e ꢇꢃꢈd ꢂꢀꢄꢀꢊꢉꢁꢅꢈꢂ ꢃꢆꢀ ꢂhꢅwꢈ ꢁꢈ Figure 14.
[1] mꢀꢃꢂuꢆꢀd wꢁꢉh Hmc697lP4e dꢁꢆꢀꢊꢉ ꢋꢅduꢄꢃꢉꢅꢆ ꢃꢉ 2 gHz, wꢁꢉh lo ꢁꢈpuꢉ pꢅwꢀꢆ = 0 dbꢋ, 1xlo ꢉypꢀ.
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