TRIQUINT TQ1422

TQ1422
(Advanced data sheet)
GSM850/900 and DCS1800/PCS1900 Tx – Bandpass Filter
Package Outline:
Features:
•
Low insertion loss
•
High suppression of 2nd,3rd , 4th harmonics
•
High selectivity
•
Balanced to single-ended operation
•
GSM Input: 310 Ohm balanced
PCN/PCS Input: 80 Ohm balanced
•
50 Ω single-ended output impedances.
•
Integrated DC-biasing to input
•
MLP 10L 3x3 package (3x3mm²)
Dimensions in mm
Application:
TX H2,H3,H4-Bandpass Filter / Balun for GSM850/900 and DCS/PCS systems
Description:
TQ1422 is a quadband capable TX bandpass filter for GSM850/E-GSM/DCS1800/PCS1900
applications. The integrated passive filter provides an optimum interface between the
TQM7M4011/4012/4014 Power Amplifier Modules and direct conversion transceiver with balanced
outputs. TQ1422 replaces up to 17 surface-mount components [including 2 Baluns and/or SAW
filter] typically required on the phone board to provide similar functionality. High value inductors to
supply open collector modulators are integrated.
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
1
Absolute Maximum Ratings:
Parameter
Min
Maximum input power
Maximum bias current GSM
Maximum bias current PCN/PCS
Max
Unit
25
dBm
50mA(Rmax=2Ohm)
mA
50mA(Rmax=1.5Ohm)
mA
Operation temperate range
-40
+85
°C
Storage temperature range
-60
+150
°C
Schematic:
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
2
Electrical Specifications Low Band GSM850 / E-GSM
(T= 25°C)
Passband Parameter
Min.
Passband
Typ.
Max.
824-915
Insertion attenuation
1.90
Insertion attenuation T= 85°C
Ripple in Passband
0.075
[any 40MHz]
Unit
MHz
2.1
dB
2.25
dB
0.20
dB
Differential input conductance
1 / 310
S
Differential input susceptance
-0.85
pF
50
Ω
Amplitude balance
0.15
dB
Phase balance
180
deg
Inband VSWR Input
1.2
1.4
Inband VSWR Output
1.6
1.8
Single ended output impedance
Stoppband Parameter (ZDIFF=310Ω
Ω||-0.85pF;ZCOMMON=50Ω
Ω;ZOUTPUT=50Ω
Ω)
Attenuation Differential Mode
Min.
Typ.
Dc ... 300 MHz
5
10
dB
1648 ... 1668 MHz
10
15
dB
1760 ... 1850 MHz
17
22
dB
2472 ... 2547 MHz [ 3x850 ]
40
45
dB
2640 ... 2775 MHz [ 3x900 ]
40
45
dB
3296 ... 3770 MHz [ 4xfc ]
30
35
dB
2775 ... 8000 MHz
20
25
dB
Min.
Typ.
100 ... 1400 MHz
30
35
dB
1648 ... 1668 MHz
30
35
dB
1760 ... 1850 MHz
30
35
dB
2472 ... 2547 MHz [ 3x850 ]
30
35
dB
2640 ... 2775 MHz [ 3x900 ]
25
30
dB
3296 ... 3770 MHz [ 4xfc ]
17
22
dB
2775 ... 5000 MHz
17
22
dB
5000 ... 8000 MHz
5
10
dB
Attenuation Common Mode
Max.
Max.
Unit
Unit
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
3
Electrical Specifications High Band DCS1800 / PCS1900
(T= 25°C)
Passband Parameter
Min.
Passband
Typ.
Max.
1710-1910
Insertion attenuation
2.6
Insertion attenuation T= 85°C
Ripple in Passband
0.25
[any 80MHz]
Unit
MHz
3.1
dB
3.3
dB
0.35
dB
Differential input conductance
1 / 80
S
Differential input susceptance
-0.8
pF
Single ended output impedance
50
Ω
Amplitude balance
0.8
dB
Phase balance
175
deg
Inband VSWR Input
1.2
1.4
Inband VSWR Output
1.4
1.6
Stoppband Parameter (ZDIFF=80Ω
Ω||-0.80pF;ZCOMMON=50Ω
Ω;ZOUTPUT=50Ω
Ω)
Attenuation Differential Mode
Min.
Typ.
Dc ... 600 MHz
5
7
dB
3420 ... 5130 MHz
20
25
dB
5130 ... 5730 MHz [ 3xfc ]
33
40
dB
5730 ... 10000 MHz
25
32
dB
Min.
Typ.
100 ... 1710 MHz
8
13
dB
1710 ... 1910 MHz
15
20
dB
1910 ... 3420 MHz
25
30
dB
3420 ... 3820 MHz [ 2xfc ]
28
33
dB
3820 ... 6840 MHz
28
33
dB
6840 ... 7640 MHz [ 4xfc ]
18
25
dB
7640 ... 10000 MHz
5
10
dB
Attenuation Common Mode
Max.
Max.
Unit
Unit
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
4
Pin Out:
Pin #
Description
Function
1
DCS_IN1
2
DCS_IN2
3
VCC1
4
GSM_IN1
5
GSM_IN2
6
GSM_OUT
GSM single ended output, 50Ohm
7
GND
GSM isolated GND *)2
8
VCC2
Input bias voltage *)1
9
GND
DCS isolated GND *)2
10
DCS_OUT
DCS single ended output, 50Ohm
Heat sink
Common GND
DCS balanced input , 80Ohm || -0.8pF @ 1810MHz
Input bias voltage *)1
GSM balanced input, 310Ohm || -0.85pF @ 875MHz
(11)
1
*) Either VCC1 or VCC2 needs to be connected. VCC1 and VCC2 are alternate inputs short-circuited on
TQ1422.
*)2 Isolated GND pins must not be connected to the heat sink directly. Use (separated) vias to connect to the
PCB RF ground plane as close as possible !
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
5
Typical Performance
•
GSM 850 / E-GSM:
Common Mode: Transmission S21 [dB]
0
-10
-10
-20
-20
db(S(2,1))
db(S(2,1))
Differential Mode: Transmission S21 [dB]
0
-30
-30
-40
-40
-50
-50
-60
-60
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
freq, GHz
•
4
5
6
7
8
9
10
freq, GHz
DCS1800 / PCS1900:
Common Mode: Transmission S21 [dB]
0
-10
-10
-20
-20
db(S(2,1))
db(S(2,1))
Differential Mode: Transmission S21 [dB]
0
-30
-30
-40
-40
-50
-50
-60
-60
0
1
2
3
4
5
6
7
freq, GHz
8
9
10
0
1
2
3
4
5
6
8
9
10
freq, GHz
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
7
6