HMC221A
/
221AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Features
RohS-compliant Product
Low insertion Loss: 0.4 dB
Ultra Small Package: SOt26
input iP3: +45 dBm
Positive control: 0/+3V @ 3 µA
included in the hMc-DK005 Designer’s Kits
Typical Applications
the hMc221A(e) is ideal for:
• iSM Applications
• PcMciA wireless cards
• cellular Applications
Functional Diagram
General Description
the hMc221A(e) is a low-cost SPDt switch in
a 6-lead SOt26 plastic package for use in gen-
eral switching applications which require very low
insertion loss and very small size. this device
can control signals from Dc to 3 Ghz and is
especially suited for 900 Mhz, 1.8 - 2.2 Ghz, and
2.4 Ghz iSM applications with less than 1 dB loss.
the design provides exceptional insertion loss perfor-
mance, ideal for filter and receiver switching. RF1 and
RF2 are reflective shorts when “Off”. the two control
voltages require a minimal amount of Dc current and
offer compatibility with most cMOS & ttL logic fami-
lies. See hMc197A(e) for same performance in an
alternate SOt26 pin-out.
14
SwitcheS - SPDt - SMt
Electrical Specifications,
T
A
= +25° C, Vctl = 0/+3 to +8 Vdc
Parameter
Frequency
Dc - 1.0 Ghz
Dc - 2.0 Ghz
Dc - 2.5 Ghz
Dc - 3.0 Ghz
Dc - 1.0 Ghz
Dc - 2.0 Ghz
Dc - 2.5 Ghz
Dc - 3.0 Ghz
Dc - 1.0 Ghz
Dc - 2.0 Ghz
Dc - 2.5 Ghz
Dc - 3.0 Ghz
0.5 - 1.0 Ghz
0.5 - 3.0 Ghz
0.5 - 1.0 Ghz
0.5 - 3.0 Ghz
Dc - 3.0 Ghz
tRiSe, tFALL (10/90% RF)
tON, tOFF (50% ctL to 10/90% RF)
3
10
ns
ns
24
24
21
14
20
17
16
11
25
23
40
38
Min.
typ.
0.4
0.45
0.6
0.8
28
28
25
18
23
22
20
15
30
29
45
43
Max.
0.7
0.8
0.9
1.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
insertion Loss
isolation
Return Loss
input Power for 1 dB compression
(Vctl = 0/+5V)
input third Order intercept
(Vctl = 0/+5V) (two-tone input Power = +7 dBm each tone)
Switching characteristics
14 - 1
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC221A
/
221AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Isolation
0
Insertion Loss
0
-0.5
INSERTION LOSS (dB)
-10
-1
ISOLATION (dB)
-20
-1.5
-30
-2
-2.5
-40
-3
0
0.5
1
1.5
2
2.5
3
-50
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
FREQUENCY (GHz)
Return Loss
0
Input 0.1 and 1.0 dB
Compression vs. Control Voltage
35
1 dB at 1900 MHz
P1dB & P0.1dB (dBm)
-10
RETURN LOSS (dB)
30
1 dB at 900 MHz
14
SwitcheS - SPDt - SMt
14 - 2
-20
25
0.1 dB at 900 MHz
-30
20
-40
0.1 dB at 1900 MHz
-50
0
0.5
1
1.5
2
2.5
3
15
3
4
5
6
7
8
9
FREQUENCY (GHz)
CONTROL INPUT (V)
Input Third Order
Intercept Point vs. Control Voltage
54
Distortion vs. Control Voltage
control input
(Vdc)
+3
+5
+8
third Order intercept (dBm) +7 dBm each tone
900 Mhz
51
51
51
1900 Mhz
48
49
50
52
IP3 (dBm)
50
48
Truth Table
900 MHz
1900 MHz
*Control Input Voltage Tolerances are ± 0.2 Vdc.
46
control input*
A
(Vdc)
0
+3
0
+5
0
+8
B
(Vdc)
+3
0
+5
0
+8
0
control current
ia
(µA)
-3
3
-5
5
-32
32
ib
(µA)
3
-3
5
-5
32
-32
Signal Path State
RF to
RF1
ON
OFF
ON
OFF
ON
OFF
RF to
RF2
OFF
ON
OFF
ON
OFF
ON
44
2
3
4
5
6
7
8
9
CONTROL INPUT (V)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC221A
/
221AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Absolute Maximum Ratings
control Voltage Range (A & B)
Storage temperature
Operating temperature
eSD Sensitivity (hBM)
-0.2 to +12 Vdc
-65 to +150 °c
-40 to +85 °c
class 1A
input Power
for 1.0 dB
compression
(dBm)
24
30
33
Compression vs. Control Voltage
carrier at 900 Mhz
control
input
(Vdc)
+3
+5
+8
input Power
for 0.1 dB
compression
(dBm)
21
28
32
input Power
for 1 dB
compression
(dBm)
24
30
34
carrier at 1900 Mhz
input Power
for 0.1 dB
compression
(dBm)
21
27
31
eLectROStAtic SeNSitiVe DeVice
OBSeRVe hANDLiNG PRecAUtiONS
caution: Do not operate in 1dB compression at power levels above
+31 dBm (Vctl = +5 Vdc) and do not “hot switch” power levels
greater than +20 dBm (Vctl = +5Vdc). Dc blocks are required at
ports RFc, RF1 and RF2.
14
SwitcheS - SPDt - SMt
Outline Drawing
NOteS:
1. LeADFRAMe MAteRiAL: cOPPeR ALLOY
2. DiMeNSiONS ARe iN iNcheS [MiLLiMeteRS].
3. DiMeNSiON DOeS NOt iNcLUDe MOLDFLASh OF 0.15mm PeR SiDe.
4. DiMeNSiON DOeS NOt iNcLUDe MOLDFLASh OF 0.25mm PeR SiDe.
5. ALL GROUND LeADS MUSt Be SOLDeReD tO PcB RF GROUND.
Package Information
Part Number
hMc221A
hMc221Ae
Package Body Material
Low Stress injection Molded Plastic
RohS-compliant Low Stress injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
221A
XXXX
221Ae
XXXX
[2]
[1] Max peak reflow temperature of 235 °c
[2] Max peak reflow temperature of 260 °c
14 - 3
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC221A
/
221AE
v01.0210
GaAs MMIC SOT26 SPDT
SWITCH, DC - 3 GHz
Typical Application Circuit
Notes:
1. Set logic gate and switch Vdd = +3V to +5V and use hct series
logic to provide a ttL driver interface.
2. control inputs A/B can be driven directly with cMOS logic (hc)
with Vdd of 5 to 8 Volts applied to the cMOS logic gates.
3. Dc Blocking capacitors are required for each RF port as shown.
capacitor value determines lowest frequency of operation.
4. highest RF signal power capability is achieved with Vdd = +8V
and A/B set to 0/+8V.
Evaluation Circuit Board
14
SwitcheS - SPDt - SMt
List of Materials for Evaluation PCB 101675
[1]
item
J1 - J3
J4 - J7
c1 - c3
U1
PcB
[2]
Description
PcB Mount SMA RF connector
Dc Pin
330 pF capacitor, 0402 Pkg.
hMc221A / hMc221Ae SPDt Switch
101659 evaluation PcB
[1] Reference this number when ordering complete evaluation PcB
[2] circuit Board Material: Rogers 4350
the circuit board used in the application should
be generated with proper RF circuit design tech-
niques. Signal lines at the RF port should have
50 Ohm impedance and the package ground leads
and package bottom should be connected directly
to the ground plane similar to that shown above.
the evaluation circuit board shown above is avail-
able from hittite Microwave corporation upon
request.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
14 - 4
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