Sony CXG1050TN Datasheet
CXG1050TN
Receiving Dual-Band Mixer
Description
The CXG1050TN is a receiving dual-band mixer
MMIC. This IC is designed using the Sony's GaAs JFET process.
Features
• High conversion gain Gc = 9.5dB (Typ.)
• Low noise figure NF = 4.9 to 5.2dB (Typ.)
• Low distortion Input IP3 = –0.5 to 0dBm (Typ.)
• Single 2.7V power supply operation
• Low LO input power operation PLO = –15dBm
• 16-pin TSSOP small package
Applications
800MHz Japan digital cellular telephones (PDC)
Structure
GaAs J-FET MMIC
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage VDD 4.5 V
• Input power PIN +5 dBm
• Current consumption IDD (Mixer block) 20 mA
• Operating temperature Topr –35 to +85 °C
• Storage temperature Tstg –65 to +150 °C
Recommended Operating Conditions
• Supply voltage VDD 2.7 to 3.3 V
• Control voltage VCTL (H) 2.4 to 3.3 V
VCTL (L) 0 to 0.3 V
– 1 –
E98432-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
16 pin TSSOP (Plastic)
Block Diagram
RFIN2
LO
INIFOUT
RFIN1
2
8
9
15
Pin Configuration
NC
RF
IN1
GND
V
DD1
CAP
CAP
CTL1
IF
OUT/VDD3
OPT
RF
IN2
GND
CAP
V
DD2
CAP
CTL2
LO
IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
– 2 –
CXG1050TN
Electrical Characteristics
Conditions: VDD = 2.7V, VCTL (H) = 2.7V, VCTL (L) = 0V, fRF1 = 820MHz, fRF2 = 870MHz,
fLO = fRF – 130MHz, PLO = –15dBm, unless otherwise specified
(Ta = 25°C)
Item
Current
consumption
Control
current
Conversion
gain
Noise figure
Input IP3
LO to RF
leak level
Symbol
IDD
ICTL
GC
NF
IIP3
PLK
Path
VDD1, VDD2
VDD3 → GND
CTL1 → GND
CTL2 → GND
RFIN1 → IFOUT
RFIN2 → IFOUT
RFIN1 → IFOUT
RFIN2 → IFOUT
RFIN1 → IFOUT
RFIN2 → IFOUT
LOIN → RFIN1
LOIN → RFIN2
Control pin condition
VCTL1 VCTL2
H L
L H
H
L
L
H
H L
L H
H L
L H
H L
L H
H L
L H
H L
L H
Min. Typ. Max. Unit
— 6.3 7.5 mA
— 18 35 µA
dB
dB
dBm
7 9.5 12
— –16 –12
— –13 –9
7 9.5 12
— 4.9 6.5
— 5.2 6.5
dBm
— –37 –30
—
–37
–30
–2.5 0 —
–3 –0.5 —
Measurement
condition
When no signal
When a small
signal
PRF = –25dBm,
offset = 100kHz
Conversion by
the IM3
suppression
ratio for twowave input
fLO = 740MHz
fLO = 690MHz
Note) The values shown above are the specified values on the Sony's recommended evaluation board.
– 3 –
CXG1050TN
Recommended Evaluation Circuit
9
10
11
12
13
14
15
16
RF
IN2
50Ω
RF
IN1
50Ω
50Ω
CTL2
CTL1
LO
IN
50Ω
IF
OUT
2
1
4
6
8
5
7
3
C14
C13
C2
C4
L5
L4
C12
C11
C10
C8
L2
C3
C9
C7
C1
L1
R3
C6
C5
L8
L6
L3
R2
R1
L9
L7
V
DD1 (LO AMP 1)
V
DD2 (LO AMP 2)
V
DD3 (MIX)
L1
L2
L3
L4
L5
L6
L7
L8
L9
82nH
39nH
27nH
47nH
39nH
39nH
10nH
33nH
8.2nH
C1
C2
C3
C4
C5
C6
C7
C8
C9
12pF
1000pF
1000pF
100pF
100pF
100pF
1000pF
1000pF
100pF
C10
C11
C12
C13
C14
R1
R2
R3
100pF
100pF
100pF
2pF
2pF
680Ω
680Ω
820Ω
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