CHE1270-QAG
RoHS COMPLIANT
12-40GHz Wide Band Detector
GaAs Monolithic Microwave IC in SMD leadless package
Description
The CHE1270-QAG is a detector that
integrates a matched detector diode (Vdet)
and a reference diode (Vref).
It is designed for a wide range of applications
where an accurate transmitted power control
is required, typically commercial
communication systems.
The circuit is manufactured with a Schottky
diode MMIC process, 1µm gate length, via
holes through the substrate and air bridges.
It is available in leadless SMD package.
Vdet
DC
Vref
UMS
E1270
YYWW
RF IN
CHE1270
Matching
Main Features
■
Wide frequency range: 12-40GHz
■
30dB dynamic range
Vdetect= Vref-Vdet (mV)
Transmitted power detection (mV)
10000
12 GHz
32GHz
1000
17GHz
37GHz
22GHz
40GHz
27GHz
■
ESD protected
■
16L-QFN3x3 SMD package
100
10
Main Characteristics
Tamb = +25° VDC = +4.5V
C,
Symbol
F
Dr
RL
Parameter
Frequency range
Dynamic range
Return Loss
1
-20 -18 -16 -14 -12 -10
-8
-6
-4
-2
0
2
4
6
8
10
12
14
16
Input power (dBm)
Min
12
Typ
Max
40
Unit
GHz
dB
dB
30
-10
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCHE1270-QAG8205 - 25 Jun 08
1/8
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
CHE1270-QAG
Electrical Characteristics
(1)
Tamb = +25° VDC = +4.5V
C,
Symbol
F
Dr
IPd
Frequency range
Dynamic range (for Input Power detection)
Input Power detection
Parameter
12-40GHz Detector
Min
12
Typ
Max
40
Unit
GHz
dB
30
-15
10
to
2000
-10
-8
4.5
70
15
dBm
mV
Vdetect Voltage detection Vref – Vdet
from IPd_min to IPd_max
RL
Return Loss (12 – 36GHz)
Return Loss (36 – 40GHz)
VDC
IDC
Bias Voltage
Bias Current
dB
dB
V
µA
(1) These values are representative of onboard measurements as defined on the drawing 96272-B
(page 8) with 27kΩ resistor in parallel on Vdet and Vref pads.
Absolute Maximum Ratings
(1)
Tamb = +25°
C
Symbol
VDC
P_max
Top
Tstg
Bias voltage
Maximum Power
Operating temperature range
Storage temperature range
Parameter
Values
6
18
-40 to +85
-55 to +125
Unit
V
dBm
°
C
°
C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
Ref. : DSCHE1270-QAG8205 - 25 Jun 08
2/8
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
12-40GHz Detector
Typical Measured Performance
CHE1270-QAG
Tamb = +25° Vdc = +4.5V, 27k
Ω
resistor in parallel on Vdet and Vref pads (see notes,
C,
page 7).
- Return Loss measurement in the
package access plans (
refer to the “definition of the Sij
reference planes” section below).
Return Loss versus frequency
0
-2
-4
-6
-8
Return Loss (dB)
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
2
4
6
8
10 12 14
16
18
20 22 24
26
28
30 32 34
36
38
40 42 44
Freq (GHz)
- Power measurements in the plan of the connectors, using the proposed land pattern &
board 96272-B (see page 8).
Transmitted power detection versus Input power
10000
12 GHz
32GHz
Vdetect= Vref-Vdet (mV)
1000
17GHz
37GHz
22GHz
40GHz
27GHz
100
10
1
-20 -18 -16 -14 -12 -10
-8
-6
-4
-2
0
2
4
6
8
10
12
14
16
Input power (dBm)
Ref. : DSCHE1270-QAG8205 - 25 Jun 08
3/8
Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
CHE1270-QAG
12-40GHz Detector
40
35
30
25
20
15
10
5
0
12
14
Transmitted power detection versus frequency @ -15dBm Input power
Vdetect= Vref-Vdet (mV)
16
18
20
22
24
26
28
30
32
34
36
38
40
Freq (GHz)
2000
1900
1800
Vdetect= Vref-Vdet (mV)
1700
1600
1500
1400
1300
1200
1100
1000
12
Transmitted power detection versus frequency @ +15dBm Input power
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Freq (GHz)
Ref. : DSCHE1270-QAG8205 - 25 Jun 08
4/8
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
12-40GHz Detector
Package outline
(1)
:
CHE1270-QAG
E1270
Matt
Free
Units
tin,
Lead
(Green)
mm
JEDEC MO-220
(VEED)
1-
2-
3-
4-
5-
6-
7-
8-
Nc
Gnd
RF IN
Gnd
VDET
DC
VREF
Nc
9-
10-
11-
12-
13-
14-
15-
16-
Gnd
Nc
Gnd
Nc
Nc
Nc
Nc
Nc
From the standard
17- GND
(1)
The package outline drawing included to this data-sheet is given for indication. Refere to the application note
AN0017 available at
http://www.ums-gaas.com
for exact package dimensions.
Ref. : DSCHE1270-QAG8205 - 25 Jun 08
5/8
Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
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