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Part Number TARF2305

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Page 1
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October 2002
October 2002
60
60
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8,
8,
Gasan
Gasan
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-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
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-
2
2
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-
818
818
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-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
Description
The TARF2305 MMIC designed as 1st frequency downconverter for
cellular/cordless telephone receiver stage.
The TARF series of gilbert multiplier-based frequency converters is fabricated using
Tachyonics's TAHB09 Silicon-Germanium HBT process.
Features
ˇ Wideband operation :
RF = 0.1 GHz to 2.0 GHz
IF = 20 MHz to 300 MHz
ˇ Low current consumption : ICC = 11 mA
ˇ Supply voltage : VCC = 2.7 to 3.3 V
ˇ Built-in power save function
Applications
ˇ
Cellular/cordless telephone up to 2.0 GHz MAX
ˇ
GSM, PDC800M, PDC1.5G and so on
SOT26
2GHz Double Balanced Mixer
TARF2305
Function Block Diagram
SiGe HBT MMIC
2GHz Double Balanced Mixer
Page
Page 2
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
Pin Configuration
Pin Description
2GHz Double Balanced Mixer
TARF2305
This pin is output from IF buffer amplifier designed as single-ended
push-pull type. This pin is assigned for emitter follower output with
low-impedance. In the case of connecting to high impedance stage,
please attach external matching circuit.
IF Output
6
Supply voltage 3.0V
ˇ0.3 V for operation. Must be connected bypass
capacitor. To minimize ground impedance.
V
CC
5
This pin is for power-save function.
This pin can control ON/OFF operation with bias as follows
V
PS
2.5 = ON, V
PS
0-0.5 = OFF
V
PS
4
This pin is LO input for local buffer designed as differential amplifier.
Recommendable input level is -20 to 0 dBm. Also this
symmetrical circuit can keep specified performance insensitive to
process condition distribution.
LO Input
3
This pin is ground of IC.
Must be connected to the system ground with minimum inductance
ground pattern on the board should be formed as wide as possible.
(Track length should be kept as short as possible.)
GND
2
This pin is RF input for mixer designed as double balance type.
This circuit contributes to suppress spurious signal with minimum
LO and bias power consumption.
Also this symmetrical circuit can keep specified performance
insensitive to process-condition Distribution.
RF Input
1
Description
Name
Pin No
IF Output
6
Vcc
5
PS
4
LO Input
3
GND
2
RF Input
1
Pin Name
Pin No
Page
Page 3
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
Absolute Maximum Ratings
-55 to +150
śC
Storage Temperature
T
STG
5.5
V
Supply Voltage
Vcc, Vps
-40 to +85
śC
Operating Temperature
T
A
200
mW
Total Power Dissipation
P
T
-20 to 0
Ratings
P
LO
Symbol
dBm
LO Input Level
Units
Parameter
2GHz Double Balanced Mixer
TARF2305
Operation in excess of any one of above Absolute Maximum Ratings may result in permanent damage.
Handling and assembly of this device should be at ESD protected workstations.
Electrical Characteristics
Condition : V
CC
= V
PS
= 3.0V, Z
S
= Z
L
= 50 , RF = -40dBm, LO = -10dBm, T
A
=25
-
-
-
-
18
17
14
dB
Conversion Gain
RF = 2GHz, LO = 1.75GHz
CG
-4.5
dBm
IF Output Power at 1dB Gain Compression RF = 2GHz, LO = 1.75GHz
P
1dB
-11
dBm
IF Input Third Order Intercept Point
RF = 2GHz, LO = 1.75GHz
IIP3
Max.
Typ.
Min.
14.8
11
6.6
mA
Supply Current
ICC
Units
-30
dBm
LO Leakage at RF Port LO = 1.75 GHz
LO
RF
-15
dBm
LO Leakage at IF Port LO = 1.75 GHz
LO
IF
-25
dBc
RF Feedthrough at IF Port RF = 2GHz, LO = 1.75GHz
RF
IF
15
13
dB
SSB Noise Figure
NF
Parameters and Test Conditions
Symbol
Page
Page 4
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
Typical Characteristics
2GHz Double Balanced Mixer
TARF2305
Supply Current vs. Supply Voltage
0
2
4
6
8
10
12
0
0.5
1
1.5
2
2.5
3
3.5
Supply Voltage[V]
Su
pp
l
y
C
u
r
r
e
n
t
[
m
A
]
Current
IF Output Level & IM3 vs. RF Input Level
-120
-100
-80
-60
-40
-20
0
20
40
60
-60
-50
-40
-30
-20
-10
0
10
20
RF Input Powe r[dBm]
IF
O
u
t
p
u
t

L
e
v
e
l
IM
3
[
d
B
m
]
Output Powe r[dBm]-Fundme ntal
Output Powe r[dBm]-IM3
Fundame ntal Exte ns ion Line
IM3 Exte ns ion Line
Page
Page 5
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
Typical Characteristics
2GHz Double Balanced Mixer
TARF2305
Conversion Gain vs. RF Input Power
-20
-15
-10
-5
0
5
10
15
20
-50
-40
-30
-20
-10
0
10
20
RF Input Power[dBm]
Co
n
v
er
s
i
o
n
G
a
i
n
[
d
B
]
Conversion Gain
Conversion Gain vs. RF Frequency
0
5
10
15
20
1940
1960
1980
2000
2020
2040
2060
RF Frequency[dB]
Con
v
er
s
i
on
G
a
i
n
[
d
B
]
LO Drive Level -7dBm
LO Drive Level -10dBm
LO Drive Level -13dBm
Page
Page 6
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
2GHz Double Balanced Mixer
TARF2305
Conversion Gain vs. LO Power
0
2
4
6
8
10
12
14
16
18
-25
-20
-15
-10
-5
0
5
10
15
LO Power[dBm]
C
o
nv
e
r
s
io
n G
a
i
n
[
d
B
]
Conversion Gain[dB]
Noise Figure vs. RF Frequency
0
1
2
3
4
5
6
7
8
9
10
1940
1960
1980
2000
2020
2040
2060
RF Frequency[MHz]
N
o
i
s
e F
i
g
u
re[
d
B
]
LO Power -5dBm
LO Power -10dBm
LO Power -15dBm
Typical Characteristics
Page
Page 7
of 8
of 8
October 2002
October 2002
60
60
-
-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
2GHz Double Balanced Mixer
TARF2305
Evaluation Board Layout
Component List
Board Size 30 x 30 mm
2
Notes
1. 30 x 30 x 0.8 mm Double Sided FR4 Board.
2. Back Side : GND Pattern
3. Solder Plated on Pattern
3300pF
C3, C4, C5
1000pF
C1, C2
Value
No.
Page
Page 8
of 8
of 8
October 2002
October 2002
60
60
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-
8,
8,
Gasan
Gasan
-
-
dong,
dong,
Kumchun
Kumchun
-
-
Gu
Gu
Seoul, Korea. 153
Seoul, Korea. 153
-
-
023
023
Tel : 82
Tel : 82
-
-
2
2
-
-
818
818
-
-
9829
9829
Fax : 82
Fax : 82
-
-
2
2
-
-
818
818
-
-
9635
9635
http://www.
http://www.
tachyonics
tachyonics
.co.
.co.
kr
kr
Rev. 1.0
Rev. 1.0
2GHz Double Balanced Mixer
TARF2305
Application Circuit