HMC197A
/
197AE
v02.1210
GaAs MMIC SOT26 SPDT
SwITCh, DC - 3 Ghz
Features
Low insertion Loss: 0.4 dB
Ultra Small Package: SOt26
input iP3: +45 dBm
Positive control: 0/+3V @ 3 µA
Typical Applications
the hMc197A(e) is ideal for:
• MMDS & wirelessLAN
• PcMciA wireless cards
• Portable wireless
Functional Diagram
General Description
the hMc197A(e) is a low-cost SPDt switch in a
6-lead SOt26 plastic package for use in general
switching applications which require very low insertion
loss and very small size. the device can control sig-
nals from Dc to 3 Ghz and is especially suited for
900 Mhz, 1.8 - 2.2 Ghz, and 2.4 Ghz iSM applica-
tions with less than 1 dB loss. the design provides
exceptional insertion loss performance, 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 families. See
hMc221A(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, 50 Ohm System
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
18
14
20
16
14
10
25
23
40
38
Min.
typ.
0.4
0.45
0.7
0.8
28
28
22
18
30
22
17
13
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 1dB 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
HMC197A
/
197AE
v02.1210
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
14
SwitcheS - SPDt - SMt
14 - 2
P1dB & P0.1dB (dBm)
-10
RETURN LOSS (dB)
30
1 dB at 900 MHz
-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
50
50
51
1900 Mhz
49
49
50
52
IP3 (dBm)
50
48
Truth Table
900 MHz
1900 MHz
*Control Input Voltage Tolerances are ± 0.2 Vdc.
control input*
A
(Vdc)
8
9
46
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
B
(Vdc)
+3
0
+5
0
+8
0
44
2
3
4
5
6
7
0
+3
0
+5
0
+8
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
HMC197A
/
197AE
v02.1210
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 1.0 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
hMc197A
hMc197Ae
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
[3]
197A
XXXX
197Ae
XXXX
[2]
[1] Max peak reflow temperature of 235 °c
[2] Max peak reflow temperature of 260 °c
[3] 4-Digit lot number XXXX
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
HMC197A
/
197AE
v02.1210
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 101674
[1]
item
J1 - J3
J4 - J6
c1 - c3
U1
PcB
[2]
Description
PcB Mount SMA RF connector
Dc Pin
330 pF capacitor, 0603 Pkg.
hMc197A / hMc197Ae
SPDt Switch
101658 evaluation PcB
[1] Reference this number when ordering complete evaluation PcB
[2] circuit Board Material: Rogers 4350
the circuit board used in the final 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 eval-
uation circuit board shown above is available 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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