HMC939A
v02.0119
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 40 GHz
Typical Applications
Features
tꢀꢁ hMC939A ꢂꢃ ꢂdꢁaꢄ fꢅꢆ:
• Fꢂbꢁꢆ oꢇꢈꢂcꢃ & Bꢆꢅadbaꢉd tꢁꢄꢁcꢅm
• Mꢂcꢆꢅwavꢁ radꢂꢅ & VsAt
• Mꢂꢄꢂꢈaꢆy radꢂꢅꢃ, radaꢆ & eCM
• sꢇacꢁ Aꢇꢇꢄꢂcaꢈꢂꢅꢉꢃ
1.0 dB lsB sꢈꢁꢇꢃ ꢈꢅ 31 dB
sꢂꢉꢊꢄꢁ pꢅꢃꢂꢈꢂvꢁ Cꢅꢉꢈꢆꢅꢄ lꢂꢉꢁ pꢁꢆ Bꢂꢈ
1.0 dB tyꢇꢂcaꢄ Bꢂꢈ eꢆꢆꢅꢆ
hꢂꢊꢀ iꢉꢇꢋꢈ ip3: +43 dBm
Dꢂꢁ sꢂzꢁ: 2.34 x 1.0 x 0.1 mm
Functional Diagram
General Description
tꢀꢁ hMC939A dꢂꢁ ꢂꢃ a bꢆꢅadbaꢉd 5-bꢂꢈ gaAꢃ iC
dꢂꢊꢂꢈaꢄ aꢈꢈꢁꢉꢋaꢈꢅꢆ MMiC cꢀꢂꢇ. Cꢅvꢁꢆꢂꢉꢊ 0.1 ꢈꢅ 40 ghz,
ꢈꢀꢁ ꢂꢉꢃꢁꢆꢈꢂꢅꢉ ꢄꢅꢃꢃ ꢂꢃ ꢄꢁꢃꢃ ꢈꢀaꢉ 5 dB ꢈyꢇꢂcaꢄ. tꢀꢁ
aꢈꢈꢁꢉꢋaꢈꢅꢆ bꢂꢈ vaꢄꢋꢁꢃ aꢆꢁ 1.0 (lsB), 2, 4, 8, 16 fꢅꢆ a
ꢈꢅꢈaꢄ aꢈꢈꢁꢉꢋaꢈꢂꢅꢉ ꢅf 31 dB. Aꢈꢈꢁꢉꢋaꢈꢂꢅꢉ accꢋꢆacy ꢂꢃ
ꢁxcꢁꢄꢄꢁꢉꢈ aꢈ ꢄꢁꢃꢃ ꢈꢀaꢉ 1.0 dB ꢈyꢇꢂcaꢄ ꢃꢈꢁꢇ ꢁꢆꢆꢅꢆ wꢂꢈꢀ
aꢉ iip3 ꢅf +43 dBm. Fꢂvꢁ cꢅꢉꢈꢆꢅꢄ vꢅꢄꢈaꢊꢁ ꢂꢉꢇꢋꢈꢃ,
ꢈꢅꢊꢊꢄꢁd bꢁꢈwꢁꢁꢉ +5V aꢉd 0V, aꢆꢁ ꢋꢃꢁd ꢈꢅ ꢃꢁꢄꢁcꢈ ꢁacꢀ
aꢈꢈꢁꢉꢋaꢈꢂꢅꢉ ꢃꢈaꢈꢁ.
2
3
4
5
6
7
8
P0
P1
P2
P3
P4
VDD
VSS
11
1
10
9
RF2
RF1
Electrical Specifications, TA = +25° C, With Vdd = +5V, Vss = -5V & VCTL = 0/ +5V
paꢆamꢁꢈꢁꢆ
Fꢆꢁqꢋꢁꢉcy (ghz)
Mꢂꢉ.
tyꢇ.
Max.
uꢉꢂꢈꢃ
0.1 - 18 ghz
18 - 40 ghz
4.3
7.0
5.0
7.8
dB
dB
iꢉꢃꢁꢆꢈꢂꢅꢉ lꢅꢃꢃ
Aꢈꢈꢁꢉꢋaꢈꢂꢅꢉ raꢉꢊꢁ
0.1 - 40 ghz
31
dB
dB
rꢁꢈꢋꢆꢉ lꢅꢃꢃ (rF1, Aꢄꢄ Aꢈꢈꢁꢉ. sꢈaꢈꢁꢃ)
(rF2, Aꢄꢄ Aꢈꢈꢁꢉ. sꢈaꢈꢁꢃ)
0.1 - 40 ghz
0.1 - 40 ghz
10
12
Aꢈꢈꢁꢉꢋaꢈꢂꢅꢉ Accꢋꢆacy: (rꢁfꢁꢆꢁꢉcꢁd ꢈꢅ iꢉꢃꢁꢆꢈꢂꢅꢉ lꢅꢃꢃ)
Aꢄꢄ sꢈaꢈꢁꢃ
0.1 - 15 dB
16 - 31 dB
0.1 - 20 ghz
20 - 40 ghz
20 - 40ghz
0.5 + 3% ꢅf Aꢈꢈꢁꢉ. sꢁꢈꢈꢂꢉꢊ Max
0.5 + 5% ꢅf Aꢈꢈꢁꢉ. sꢁꢈꢈꢂꢉꢊ Max
0.6 + 6% ꢅf Aꢈꢈꢁꢉ. sꢁꢈꢈꢂꢉꢊ Max
dB
dB
dB
0.1 - 0.5 ghz
0.5 - 40.0 ghz
21
24
dBm
dBm
iꢉꢇꢋꢈ pꢅwꢁꢆ fꢅꢆ 0.1 dB Cꢅmꢇꢆꢁꢃꢃꢂꢅꢉ
iꢉꢇꢋꢈ tꢀꢂꢆd oꢆdꢁꢆ iꢉꢈꢁꢆcꢁꢇꢈ pꢅꢂꢉꢈ
(twꢅ-tꢅꢉꢁ iꢉꢇꢋꢈ pꢅwꢁꢆ= 8 dBm eacꢀ tꢅꢉꢁ)
0.1 - 0.5 ghz
0.5 - 40.0 ghz
43
40
dBm
dBm
swꢂꢈcꢀꢂꢉꢊ Cꢀaꢆacꢈꢁꢆꢂꢃꢈꢂcꢃ
0.1 - 40 ghz
ꢈrise, ꢈFAll (10/90% rF)
ꢈon/ꢈoFF (50% Ctl ꢈꢅ 10/90% rF)
50
70
ꢉꢃ
ꢉꢃ
idd
iꢃꢃ
0.1 - 40 ghz
0.1 - 40 ghz
3
5
7
mA
mA
-4
-6
-8
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