UMS CND2050

CND2050
0.5-11.5 GHz Divide by 4 Static Prescaler
GaAs Monolithic Microwave IC
Description
The CND2050 is a low power consumption
and very high speed divider by 4
manufactured with a 0.6µm GaAs self
aligned implanted MESFET process.
The design is full differential input/output
that allows direct drive into 50Ω load.
UMS
The CND2050 is available in SOIC8
package form .
CND2050
Main Features
Very broad operating frequency range
Low power dissipation: 250mW
Single supply operation:+ 5V or –5V
High input sensitivity:
-10dBm@10 GHz at 25°C
Low phase noise: -139dBc/Hz at 1KHz
SOIC8 plastic package
Main Characteristics
at Tamb= +25°C
Symbol
Parameter
Min
Typ
Max
Unit
Vdd
Bias supply (with Vss = 0)
3.3
5
6
V
Vss
Bias supply (with Vdd = 0)
-6
-5
-3.3
V
Pdiss
Power dissipation
90
250
350
mW
Fmin
Minimum input frequency
0.5
GHz
Fmax
Maximum input frequency (Vdd=5V)
10
12
GHz
ESD Protections: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCND20500257 -13-Sep.-00
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Specifications subject to change without notice
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
0.5-10GHz frequency divider by 4
CND2050
Electrical Characteristics (1)
Guaranteed electrical specifications at +25°C
Tested under configuration described in Fig.1 and Fig.2
Vdd = 5V , Vss = 0 ; Pin = 0 dBm ; Zo = 50 Ω
Symbol
Fmin
Parameter
Min
Typ
0.5
GHz
Maximum input frequency
differential input
single input
Pout
Unit
Minimum input frequency
(Differential or single input)
Fmax
Max
10
12
GHz
9
11
GHz
-5
-2
dBm
Min
Typ
Minimum output power
(Differential or single input)
Guaranteed electrical specifications at +25°C
Tested under configuration described in Fig.1
Differential inputs ; Vss = 0 ; Pin = 0 dBm ; Zo = 50 Ω
Symbol
Fmin
Parameter
Pout
Unit
0.5
GHz
Minimum input frequency
Vdd = 3.3 to 5 V
Fmax
Max
Maximum input frequency
Vdd = 5V
10
12
GHz
Vdd = 3.3V
9
11
GHz
Vdd = 5V
-5
-2
dBm
Vdd =3.3V
-10
-7
dBm
Minimum output power
Ref. : DSCND20500257 -13-Sep.-00
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Specifications subject to change without notice
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
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Electrical Characteristics (2)
Guaranteed electrical specifications over the temperature range of -40°C to +85°C
Tested under configuration described in Fig.1
Differential inputs ; Vss = 0 ; Pin = 0 dBm ; Zo = 50 Ω
Symbol
Fmin
Parameter
Min
Typ
Max
Unit
0.5
GHz
Minimum input frequency
Vdd = 3.3 to 5 V
Fmax
Pout
Maximum input frequency
Vdd = 5V
9
11
GHz
Vdd = 3.3V
8
10
GHz
Vdd = 5V
-6
-3
dBm
Vdd =3.3V
-11
-8
dBm
Minimum output power
Guaranteed electrical specifications over the temperature range of -40°C to +85°C
Single or differential inputs ; Vss = 0 ; Zo = 50 Ω
Symbol
Pin max
Parameter
Min
Typ
Hr
Unit
10
dBm
Maximum operational input power
Vdd = 3.3 to 5 V
Idd
Max
Supply current
Vdd= 5V
35
45
70
mA
Vdd=3.3V
20
25
40
mA
Harmonic rejection (ouput signal)
10
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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
dBc
Specifications subject to change without notice
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Absolute Maximum Ratings (1)
Tamb= 25°C
Symbol
Parameter
Values
Units
Vdd
Drain voltage
7
V
Pin
Maximum input power (2)
15
dBm
Top
Operating temperature range
-40 to +85
°C
Tstg
Storage temperature range
-65 to +175
°C
(1) Operation of this device above anyone of these parameters may cause permanent damage
(2) Duration <1s.
Typical Characteristics (1)
Typical input power versus frequency
20
Pin max
10
Vdd=5V
Vdd=3,3V
RECOMMENDED OPERATIONAL RANGE AT Vdd=5V
Pin (dBm)
0
-10
-20
-30
Pin min
-40
-50
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Frequency (GHz)
Tamb= 25°C, Zo=50Ω , Vdd=5V or 3.3V ; Vss = 0 ; differential inputs
Ref. : DSCND20500257 -13-Sep.-00
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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
Specifications subject to change without notice
14
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Typical Characteristics (2)
Typical input power versus frequency
5
0
-5
Pin min (dBm)
-10
-15
single input
-20
differential inputs
-25
-30
-35
-40
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Frequency (GHz)
Tamb= 25°C, Zo=50Ω , Vdd=5V ; Vss = 0 ; differential inputs or single input
20
max
10
- 40°C
+85°C
+25°C
Pin (dBm)
0
-10
-20
min
-30
-40
-50
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Frequency (GHz)
Tamb= -40 to +85°C, Zo=50Ω , Vdd=5V ; Vss = 0 ; differential inputs
Ref. : DSCND20500257 -13-Sep.-00
5/9
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
Specifications subject to change without notice
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Typical Characteristics (3)
Output power versus frequency
Bias current versus Vdd
0
60
Vdd=5V
50
Idd (mA)
Pout (dBm)
-2
-4
-6
Vdd=3,3V
40
30
-8
20
-10
0
1
2
3
4
5
6
7
8
F (GHz)
9
10 11 12
13 14
3
4
5
Vdd (V)
Tamb= 25°C, Zo=50Ω , Vdd=5V or 3.3V ; Vss = 0 ; differential inputs or single input
SSB Phase noise versus Offset Frequency (Fin=4GHz)
SSB phase noise (dBc/Hz)
0
-20
-40
-60
-80
-100
-120
-140
-160
10
100
1000
10000
100000
Offset frequency (Hz)
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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
Specifications subject to change without notice
6
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Typical bias tuning
Vdd
8
1
1 nF
1 nF
0¦
Signal generator
50 Ohms load
Tansmission lines
are 50 Ohms
1 nF
180°¦
Spectrum
analyzer
50 Ohms load
1 nF
Vss
Vss
4
5
Fig.1 : Typical measurement and RF biasing configuration with differential inputs
Vdd
1 nF
Signal generator
50 Ohms load
Tansmission lines
are 50 Ohms
1
8
1 nF
Q
F/4 RF output (50 Ohms)
QB
1 nF
Vss
Vss
1 nF
50 Ohms
5
4
Fig.2 : RF biasing configuration with single input and ouput
Vdd
Vdd
Internal divider by 4
CK
Q
CKB
QB
5K
5K
500
Vss
500
Vss
Fig.3 : Chip block diagram
Ref. : DSCND20500257 -13-Sep.-00
7/9
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
Specifications subject to change without notice
0.5-11.5 GHz Divide by 4 prescaler
CND2050
SOIC8 Mechanical Data
5+/-0.15
[0.20+/-0.006]
3.81
[.15]
1.27
[0.05]
5
UMS
CND2050
3.7
[.145]
6+/-0.15
[.236+/-.006]
8
0.2
[0.006]
0.1+/-0.15
[.004+/-.006]
1.4
[0.055]
1
4
0.4
[.015]
8° max
1.7 max
[0.067]
Unit: mm [In]
General tolerance: +/-0.05 [+/-.002]
Pin out
1
2
3
4
5
6
7
8
Signal
Vdd
CK
CKB
Vss
Vss
QB
Q
Vdd
Ordering Information
SOIC8 Package
: CND2050-DAF/20
Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors
S.A.S. assumes no responsibility for the consequences of use of such information nor for any infringement of
patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces
all information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for
use as critical components in life support devices or systems without express written approval from United
Ref. : DSCND20500257 -13-Sep.-00
8/9
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
Specifications subject to change without notice
0.5-11.5 GHz Divide by 4 prescaler
CND2050
Monolithic Semiconductors S.A.S.
Ref. : DSCND20500257 -13-Sep.-00
9/9
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
Specifications subject to change without notice