CHR3693-QDG
RoHS COMPLIANT
21-26.5GHz Integrated Down converter
GaAs Monolithic Microwave IC in SMD package
Description
The CHR3693-QDG is a multifunction chip,
which integrates a balanced cold FET mixer,
a time two multiplier, and a RF self biased
LNA.
It is designed for a wide range of
applications,
typically
commercial
communication systems.
The circuit is manufactured with a pHEMT
process, 0.25µm gate length, via holes
through the substrate and air bridges.
It is supplied in lead-free SMD package.
UMS
UMS
R3693
A3688A
A3667A
YYWW
YYWWG
Main Features
■ Broadband performance 21-26.5GHz
■ 14dB gain
■ -5dBm input IP3
■ 18dBc image rejection
■ DC bias: Vd=4.0Volt@Id=160mA
■ 24LQFN4x4
■ MSL Level: 1
Conversion gain (Inf. & Sup. Mode)
F_FI=2GH
F_FI=3GH
Q (suprad
I (infradyn
Main Electrical Characteristics
Tamb.= +25°C, Vdx=Vdl=4.0V, Vgx=-0.9V, Vgm=-0.7V
Symbol
Parameter
Min
Typ
Max
Unit
F_RF
RF frequency range
21
26.5
GHz
F_LO
LO frequency range
9
14
GHz
F_IF
IF frequency range
DC
3.5
GHz
Gc
Conversion gain
12
14
dB
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCHR3693QDG2181 - 29 Jun 12
1/14
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
CHR3693-QDG
Electrical Characteristics
21-26.5GHz Integrated Down converter
Tamb.= +25°C, Vdx=Vdl = +4.0V, Vgx=-0.9V, Vgm=-0.7V
Symbol
Parameter
Min
Typ
Max
Unit
F_RF
RF frequency range
21
26.5
GHz
F_LO
LO frequency range
9
14
GHz
F_IF
IF frequency range
DC
3.5
GHz
Gc
Conversion gain
12
14
dB
NF
Noise Figure for IF>0.1GHz
2
2.5
dB
P_LO
LO Input power
2
5
dBm
(1)
Img Sup Image Suppression
15
18
dBc
IIP3
Input IP3
-2
dBm
LO_RL
LO return loss
-9
-7
dB
RF return loss (21 to 24GHz)
-12
-7
dB
RF_RL
RF return loss (24 to 26.5GHz)
-8
-6
dB
LO/RF
Isolation LO
RF
45
dBc
2LO/RF Isolation 2LO
RF
35
dBc
Id
Bias current
(2)
(Idl + Idx)
120
160
200
mA
(1)
With external I/Q 90° hybrid coupler
(2)
Typically, Idl= 90mA, Idx=70mA
These values are representative of onboard measurements as defined on the drawing at
paragraph “Evaluation mother board”.
Absolute Maximum Ratings
(1)
Tamb.= +25°C
Symbol
Parameter
Values
Unit
Vd
Maximum drain bias voltage
4.5
V
Id
Maximum drain bias current
230
mA
Vg
Gate bias voltage
-2.0 to +0.4
V
P_RF
Maximum RF input power
(2)
10
dBm
(2)
P_LO
Maximum LO input power
10
dBm
Tch
Maximum channel temperature
175
°C
Ta
Operating temperature range
-40 to +85
°C
Tstg
Storage temperature range
-55 to +150
°C
(1)
Operation of this device above anyone of these parameters may cause permanent
damage.
(2)
Duration < 1s.
Ref. : DSCHR3693QDG2181 - 29 Jun 12
2/14
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
21-26.5GHz Integrated Down converter
Device thermal performances
CHR3693-QDG
All the figures given in this section are obtained assuming that the QFN device is cooled
down only by conduction through the package thermal pad (no convection mode considered).
The temperature is monitored at the package back-side interface (Tcase) as shown below.
The system maximum temperature must be adjusted in order to guarantee that Tcase
remains below than the maximum value specified in the next table. So, the system PCB must
be designed to comply with this requirement.
A derating must be applied on the dissipated power if the Tcase temperature can not be
maintained below than the maximum temperature specified (see the curve Pdiss. Max) in
order to guarantee the nominal device life time (MTTF).
DEVICE THERMAL SPECIFICATION : Product name
Recommended max. junction temperature (Tj max)
:
124
Junction temperature absolute maximum rating
:
175
Max. continuous dissipated power (Pdiss. Max.)
:
0.64
(1)
=> Pdiss. Max. derating above Tcase = 85
°C :
16
(2)
Junction-Case thermal resistance (Rth J-C)
:
<60
(3)
Minimum Tcase operating temperature
:
-40
(3)
Maximum Tcase operating temperature
:
85
Minimum storage temperature
:
-55
Maximum storage temperature
:
150
(1 Derating at junctio n temperature co nstant = Tj max.
)
°C
°C
W
mW/°C
°C/W
°C
°C
°C
°C
(2) Rth J-C is calculated fo r a wo rst case co nsidering the
ho t t e s t junc t io n
o f the M M IC and all the devices biased.
(3) Tcase=P ackage back side temperature measured under the die-attach-pad (see the drawing belo w).
0.7
Pdiss. Max. @Tj <Tj max (W)
Tcase
0.6
0.5
0.4
0.3
0.2
Pdiss. Max. @Tj <Tj max (W)
0.1
0
-50
-25
0
25
50
Tcase (°C)
75
100
125
150
Example: QFN 16L 3x3
Example : QFN 16L 3x3
Location of temeprature
Location of temperature
reference point (Tcase)
reference point (Tcase)
on package's bottom side
on package’s bottom side
6.4
Ref. : DSCHR3693QDG2181 - 29 Jun 12
3/14
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
CHR3693-QDG
21-26.5GHz Integrated Down converter
Typical Board Measurements
Tamb=25°C, Vdx=Vdl=4V, Typical Vgx=-0.9V & Vgm=-0.7V
P_LO=2dBm, F_IF=2GHz
These values are representative of onboard measurements as defined on the drawing at
page 12 (paragraph “Evaluation mother board”) (in connector access planes).
Conversion Gain in infradyne mode versus frequency
F_RF = 2xF_LO-F_IF
-40°C
+25°C
+80°C
Conversion Gain in supradyne mode versus frequency
F_RF = 2xF_LO+F_IF
-40°C
+25°C
+80°C
Ref. : DSCHR3693QDG2181 - 29 Jun 12
4/14
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
21-26.5GHz Integrated Down converter
Typical Board Measurements
Tamb=25°C, Vdx=Vdl=4V, Typical Vgx=-0.9V & Vgm=-0.7V
P_LO=2dBm, F_IF=2GHz
CHR3693-QDG
Image Frequency rejection (inf. & sup. Mode) @ -40, +25, +80°C
-40°C
+25°C
+80°C
Q (supradyne)
I (infradyne)
Ref. : DSCHR3693QDG2181 - 29 Jun 12
5/14
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
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