NJG1521PE1
- 1 -
TDMA ANTENNA SWITCH GaAs MMIC
n
GENERAL DESCRIPTION
n
PACKAGE OUTLINE
NJG1521PE1 is an antenna switch IC for a digital cellular
phone of 800MHz and 1.5GHz band.
The parallel control signals of three bits connect T/R circuits
to internal two antennas or external two antennas.
The termination ports with external matching circuits make
low interference between diversity antennas.
The Ultra small & thin FFP24-E1 package is applied.
nFEATURES
lLow voltage operation -2.5V(TX only) and +3.5V
lLow current consumption 10µA Typ.(TX Mode, Pin=30dBm) 2µA Typ.(RX Mode, No RF Signal)
lLow insertion loss 0.45dB Typ. @(TX-ANT1, TX-EXT1) fin=940MHz, Pin=30dBm
0.55dB Typ. @(TX-ANT1, TX-EXT1) fin=1453MHz, Pin=30dBm
lLow Adjacent Channel -63dBc Typ. @ VDD=+3.5V, VSS=-2.5V, fin=940MHz, Pin=30dBm
Leakage Power -64dBc Typ. @VDD=+3.5V, VSS=-2.5V, fin=1453MHz, Pin=30dBm
lUltra small & thin package FFP24-E1 (Mount Size: 3.5x3.5x0.85mm)
n
PIN CONFIGURATION
NJG1521PE1
Pin Connection
1. VDD
2. CTL1
3. GND
4. CTL2
5. CTL3
6. VSS
7. GND
8. EXT2
9. GND
10. EXT1
11. GND
12. TX
13. GND
14. TER2
15. ANT2
16. GND
17. ANT1
18. GND
19. RX
20. GND
21. TER1
22. GND
23. GND
24. GND
FFP24 Type
(Top View)
6
7
8
9
10
11
13
12
14 15 16 17
19
18
20
21
22
23
24
1
2
3
45
ANT-SW
DECORDER
NJG1521PE1
- 2 -
nABSOLUTE MAXIMUM RATINGS
(Ta=+25°C)
PARAMETER SYMBOL CONDTIONS RATINGS UNITS
Supply Voltage 1 VDD VDD Terminal 6.0 V
Supply Voltage 2 VSS VSS Terminal -4.0 V
Control Voltage VCTLCTL1, CTL2, CTL3 Terminals 6.0 V
TX, ANT1, EXT1 Terminals
VDD=3.5V, VSS=-2.5V 37 dBm
Input Power Pin RX, ANT2, EXT2 Terminals
VDD=3.5V, VSS=0.0V 28 dBm
Power Dissipation PD600 mW
Operating
Temperature Topr -40~+85 °C
Storage
Temperature Tstg -55~+125 °C
n
ELECTRICAL CHARACTERISTICS 1 [DC CHARACTERISTICS]
General Conditions :
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Positive Supply Voltage VDD VDD Terminal 2.7 3.5 5.0 V
Negative Supply Voltage VSS VSS Terminal -3.5 -2.5 -2.0 V
Current Consumption 1IDD1VDD Terminal
RX Mode, No RF Signal -2.0 5.0µA
Current Consumption 2ISS1VSS Terminal
RX Mode, No RF Signal -0.1 -0µA
Current Consumption 3 IDD2VDD Terminal, fin=0.1~2GHz
TX Mode, Pin=30dBm -10 50 µA
Current Consumption 4 ISS2VSS Terminal, fin=0.1~2GHz
TX Mode, Pin=30dBm -50 -10 -µA
Control Voltage (H)VCTL(H) CTL1, CTL2, CTL3 Terminals 2.03.0 VDD V
Control Voltage (L)VCTL(L) CTL1, CTL2, CTL3 Terminals 0 0 0.6 V
Control Current ICTL CTL1, CTL2, CTL3=VDD
or CTL1, CTL2, CTL3=0V -1.3-1.3µA
Control terminal Input
Impedance Rin CTL1, CTL2, CTL3 Terminals 4- - MΩ
T
a
=+25°C, V
DD
=3.5V, V
SS
=-2.5V
TX, RX, ANT1, ANT2, EXT1, EXT2: terminated (50Ω)
TER1: grounded by 5pF capacitor, TER2: grounded by 10pF capacitor
NJG1521PE1
- 3 -
n
ELECTRICAL CHARACTRISTICS 2 [800MHz TX Mode]
General Conditions:
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Frequency range 1 fin1 885 -960 MHz
TX-ANT1 Insertion Loss LOSS1Pin=30dBm -0.45 0.60 dB
TX-EXT1 Insertion Loss LOSS2Pin=30dBm -0.50 0.65 dB
TX-RX Isolation ISL1 Pin=30dBm
TX-ANT1, TX-EXT1 passing 24 29 -dB
TX-ANT1 Isolation ISL2 Pin=30dBm
TX-EXT1 passing 22 27 -dB
TX-ANT2 Isolation ISL3 Pin=30dBm
TX-ANT1, TX-EXT1 passing 20 25 -dB
TX-EXT1 Isolation ISL4 Pin=30dBm
TX-ANT1 passing 20 25 -dB
TX-EXT2 Isolation ISL5 Pin=30dBm
TX-ANT1,TX-EXT1 passing 32 37 -dB
Input Power at
0.5dB Compression 1 P-0.5dB(1) TX-ANT1,TX-EXT1 passing 33.5 35.5 -dBm
Adjacent Channel
Leakage Power 1ACP1 PDC Standard, ±50kHz offset
Pin=30dBm
Input Signal ACP=-64dBc @ 30dBm --63 -60 dBc
Adjacent Channel
Leakage Power 2 ACP2PDC Standard, ±100kHz offset
Pin=30dBm
Input Signal ACP=-76dBc @ 30dBm --74 -70 dBc
2nd Harmonics 1 2f0(1) Pin=30dBm
Input Signal 2nd Harmonics=-70dBc --65 -63 dBc
3rd Harmonics 1 3f0(1) Pin=30dBm
Input Signal 3rd Harmonics=-100dBc --64 -62 dBc
VSWR 1 VSWR1 TX-ANT1, TX-EXT1 passing -1.2 1.5
Switching Time 1 TD1CTL1~3 -120 500 nsec
T
a
=+25°C,V
DD
=3.5V,V
SS
=-2.5V, f
in
=940MHz
Tested on PCB circuit as shown below.
Insertion loss of each connectors, striplines, and capacitors are excluded.
TX, RX, ANT1, ANT2, EXT1, EXT2: terminated (50Ω)
TER1: grounded by 5pF capacitor, TER2: grounded by 10pF capacitor.
NJG1521PE1
- 4 -
n
ELECTRICAL CHARACTRISTICS 3 [800MHz RX Mode]
General Conditions:
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Frequency range 2 fin2 810 -885 MHz
RX-ANT1 Insertion Loss LOSS3 Pin=10dBm -0.55 0.70 dB
RX-ANT2 Insertion Loss LOSS4 Pin=10dBm -0.45 0.60 dB
RX-EXT1 Insertion Loss LOSS5 Pin=10dBm -0.80 0.95 dB
RX-EXT2 Insertion Loss LOSS6 Pin=10dBm -0.80 0.95 dB
RX-ANT1 Isolation ISL6 Pin=10dBm
RX-ANT2, RX-EXT1, RX-EXT2 passing 21 24 -dB
RX-ANT2 Isolation ISL7 Pin=10dBm
RX-ANT1, RX-EXT1, RX-EXT2 passing 22 25 -dB
RX-EXT1 Isolation ISL8 Pin=10dBm
RX-ANT1, RX-ANT2, RX-EXT2 passing 22 25 -dB
RX-EXT2 Isolation ISL9 Pin=10dBm
RX-ANT1, RX-ANT2, RX-EXT1 passing 20 23 -dB
Input Power at
1dB Compression 1 P
-1dB
(1) RX-ANT1, RX-ANT2, RX-EXT1, RX-
EXT2 passing 20 26 -dBm
VSWR 2 VSWR2 RX-ANT1, RX-ANT2, RX-EXT1, RX-
EXT2 passing -1.2 1.6
Switching Time 2 TD2CTL1~3 -120 500 nsec
T
a
=+25°C, V
DD
=3.5V, V
SS
=0V, f
in
=885MHz
Tested on PCB circuit as shown below.
Insertion loss of each connectors, striplines, and capacitors are excluded.
TX, RX, ANT1, ANT2, EXT1, EXT2: terminated (50Ω)
TER1: grounded by 5pF capacitor, TER2: grounded by 10pF capacitor.
NJG1521PE1
- 5 -
n
ELECTRICAL CHARACTRISTICS 4 [1.5GHz TX Mode]
General Conditions:
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Frequency range 3 fin3 1429 -1453 MHz
TX-ANT1 Insertion Loss LOSS7 Pin=30dBm -0.55 0.70 dB
TX-EXT1 Insertion Loss LOSS8 Pin=30dBm -0.65 0.80 dB
TX-RX Isolation ISL10 Pin=30dBm
TX-ANT1, TX-EXT1 passing 28 33 -dB
TX-ANT1 Isolation ISL11 Pin=30dBm
TX-EXT1 passing 25 30 -dB
TX-ANT2 Isolation ISL12 Pin=30dBm
TX-ANT1, TX-EXT1 passing 20 24 -dB
TX-EXT1 Isolation ISL13 Pin=30dBm
TX-ANT1 passing 20 24 -dB
TX-EXT2 Isolation ISL14 Pin=30dBm
TX-ANT1,TX-EXT1 passing 35 40 -dB
Input Power at
0.5dB Compression 2 P
-0.5dB
(2) TX-ANT1,TX-EXT1 passing 33.5 35.5 -dBm
Adjacent Channel
Leakage Power 3 ACP3PDC Standard, ±50kHz offset
Pin=30dBm
Input Signal ACP=-67dBc @ 30dBm --64 -60 dBc
Adjacent Channel
Leakage Power 4 ACP4PDC Standard, ±100kHz offset
Pin=30dBm
Input Signal ACP=-76dBc @ 30dBm --72 -70 dBc
2nd Harmonics 2 2f0(2) Pin=30dBm
Input Signal 2nd Harmonics =-80dBc --65 -61 dBc
3rd Harmonics 2 3f0(2) Pin=30dBm
Input Signal 3rd Harmonics =-110dBc --63 -61 dBc
VSWR 3 VSWR3 TX-ANT1,TX-EXT1 Passing -1.2 1.6
Switching Time 3 TD3CTL1~3 -120 500 nsec
a
DD
SS
in
Tested on PCB circuit as shown below.
Insertion loss of each connectors, striplines, and capacitors are excluded.
TX, RX, ANT1, ANT2, EXT1, EXT2: terminated (50Ω)
TER1: grounded by 5pF capacitor, TER2: grounded by 10pF capacitor.
NJG1521PE1
- 6 -
n
ELECTRICAL CHARACTRISTICS 5 [1.5GHz RX Mode]
General Conditions:
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Frequency range 4 fin4 1477 -1501 MHz
RX-ANT1 Insertion Loss LOSS9 Pin=10dBm -0.75 0.85 dB
RX-ANT2 Insertion Loss LOSS10 Pin=10dBm -0.65 0.75 dB
RX-EXT1 Insertion Loss LOSS11 Pin=10dBm -1.00 1.15 dB
RX-EXT2 Insertion Loss LOSS12 Pin=10dBm -0.95 1.10 dB
RX-ANT1 Isolation ISL15 Pin=10dBm
RX-ANT2, RX-EXT1, RX-EXT2 passing 18 22 -dB
RX-ANT2 Isolation ISL16 Pin=10dBm
RX-ANT1, RX-EXT1, RX-EXT2 passing 20 24 -dB
RX-EXT1 Isolation ISL17 Pin=10dBm
RX-ANT1,RX-ANT2,RX-EXT2 Passing 23 28 -dB
RX-EXT2 Isolation ISL18 Pin=10dBm
RX-ANT1, RX-ANT2, RX-EXT1 passing 19 24 -dB
Input Power at
1dB Compression 2 P
-1dB
(2) RX-ANT1, RX-ANT2, RX-EXT1,
RX-EXT2 passing 20 26 -dBm
VSWR 4 VSWR4 RX-ANT1, RX-ANT2, RX-EXT1,
RX-EXT2 passing -1.2 1.6
Switching Time 4 TD4CTL1~3 -120 500 nsec
T
a
=25°C,V
DD
=3.5V,V
SS
=0V, f
in
=1501MHz
Tested on PCB circuit as shown below.
Insertion loss of each connectors, striplines, and capacitors are excluded.
TX, RX, ANT1, ANT2, EXT1, EXT2: terminated (50Ω)
TER1: grounded by 5pF capacitor, TER2: grounded by 10pF capacitor.
NJG1521PE1
- 7 -
n
TERMINAL INFORMATION
PIN No. SYMBOL DESCRIPTIONS
1VDD Positive voltage supply terminal. The positive voltage (+2.7~+5.0V) have to be
supplied. Please connect a bypass capacitor with GND terminal for excellent RF
performance.
2CTL1 High-impedance C-MOS input terminal. This terminal is set to High-
Level(+2V~V
DD
) or Low-Level(+0.6V~0V). If the voltage level of this terminal is
unstable, please connect a resistor(100kΩ) with GND terminal or VDD terminal.
4CTL2 High-impedance C-MOS input terminal. This terminal is set to High-
Level(+2V~V
DD
) or Low-Level(+0.6V~0V). If the voltage level of this terminal is
unstable, please connect a resistor(100kΩ) with GND terminal or VDD terminal.
5CTL3 High-impedance C-MOS input terminal. This terminal is set to High-
Level(+2V~V
DD
) or Low-Level(+0.6V~0V). If the voltage level of this terminal is
unstable, please connect a resistor(100kΩ) with GND terminal or VDD terminal.
6VSS Negative voltage supply terminal. Please supply negative voltage of -3.5~-2.0V
on transmitting state. On receiving state, this terminal is internally disconnected,
so the voltage of this terminal(negative, short, or open) does not affect to
receiving signal quality. The bypass capacitor should be connected between this
terminal and GND for excellent RF performance.
8EXT2 RF receiving port. An external capacitor of 56pF~100pF is required to block DC
voltage (VDD).
10 EXT1 RF transmitting/receiving port. An external capacitor of 56pF~100pF is required
to block DC voltage (VDD).
12 TX RF transmitting port. An external capacitor of 56pF~100pF is required to block
DC voltage (VDD).
14 TER2 ANT2 termination port. Please connect this port and GND by appropriate
capacitor(10pF) to suppress the interference of ANT1 port signal to ANT2 port.
The capacitor works as DC voltage (V DD) blocking.
15 ANT2 RF receiving port. An external capacitor(56pF~100pF) is required to block DC
voltage (VDD) .
17 ANT1 RF transmitting/receiving port. An external capacitor(56pF~100pF) is required to
block DC voltage (VDD) .
19 RX RF receiving port. An external capacitor(56pF~100pF) is required to block DC
voltage (VDD) .
21 TER1 ANT1 termination port. Please connect this port and GND by appropriate
capacitor(5pF) to suppress the interference of ANT2 port signal to ANT1 port.
The capacitor works as DC voltage (V DD) blocking. .
3, 7, 9, 11,
13,16, 18,
20, 22,23,
24
GND Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
NJG1521PE1
- 8 -
n
TYPICAL CHARACTERISTICS (800MHz Band: Measured on the PCB evaluation circuit)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
TX-ANT1 Insertion Loss (dB)
TX-RX Isolation (dB)
Frequency (GHz)
TX-ANT1 Insertion Loss
TX-RX Isolation
(with matching circuit for 800MHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
TX-EXT1 Insertion Loss (dB)
TX-RX Isolation (dB)
Frequency (GHz)
TX-EXT1 Insertion Loss
TX-RX Isolation
(with matching circuit for 800MHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-ANT1 Insertion Loss (dB)
RX-ANT2 Isolation (dB)
Frequency (GHz)
RX-ANT1 Insertion Loss
RX-ANT2 Isolation
(with matching circuit for 800MHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-ANT2 Insertion Loss (dB)
RX-ANT1 Isolation (dB)
Frequency (GHz)
RX-ANT2 Insertion Loss
RX-ANT1 Isolation
(with matching circuit for 800MHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-EXT1 Insertion Loss (dB)
RX-EXT2 Isolation (dB)
Frequency (GHz)
RX-EXT1 Insertion Loss
RX-EXT2 Isolation
(with matching circuit for 800MHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-EXT2 Insertion Loss (dB)
RX-EXT1 Isolation (dB)
Frequency (GHz)
RX-EXT2 Insertion Loss
RX-EXT1 Isolation
(with matching circuit for 800MHz band)
NJG1521PE1
- 9 -
n
TYPICAL CHARACTERISTICS (800MHz Band: Measured on the PCB evaluation circuit)
0.0
0.5
1.0
1.5
15 20 25 30 35 40
TX-ANT1 Insertion Loss (dB)
Input Power (dBm)
Insertion Loss vs. Input Power
(TX-ANT1, f=940MHz, V
DD=3.5V, V
SS=-2.5V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
510 15 20 25 30 35
RX-ANT1 Insertion Loss (dB)
Input Power (dBm)
Insertion Loss vs. Input Power
(RX-ANT1, f=885MHz, V
DD=3.5V, V
SS=0V)
-80
-75
-70
-65
-60
-55
-50
-45
15 20 25 30 35
Adjacent Channel Leakage Power (dBc)
Input Power (dBm)
ACP vs. Input Power
(TX-ANT1, f=940MHz, V
DD=3.5V, V
SS=-2.5V)
50kHz offset
100kHz offset
-80
-75
-70
-65
-60
-55
2.7 2.9 3.1 3.3 3.5
Adjacent Channel Leakage Power (dBc)
VDD (V)
ACP vs. VDD
(TX-ANT1, f=940MHz, Pin=30dBm, VSS=-2.5V)
50kHz offset
100kHz offset
15
20
25
30
35
40
0
10
20
30
40
50
15 20 25 30 35 40
Output Power (dBm)
IDD ( uA )
Input Power (dBm)
Output Power, I DD vs. Input Power
(TX-ANT1, f=940MHz, V
DD=3.5V, V
SS=-2.5V)
P =36.7dBm
-0.5dB
5
10
15
20
25
30
0
2
4
6
8
10
510 15 20 25 30
Output Power (dBm)
IDD ( uA )
Input Power (dBm)
Output Power, I DD vs. Input Power
(RX-ANT1, f=885MHz, V
DD=3.5V, V
SS=0V)
P =26.4dBm
-1dB
NJG1521PE1
- 10 -
n
TYPICAL CHARACTERISTICS (800MHz Band: Measured on the PCB evaluation circuit)
0.0
0.2
0.4
0.6
0.8
1.0
-50 050 100
VDD=3.5V
VDD=3.0V
VDD=2.7V
TX-ANT1 Insertion Loss (dB)
Ambient Temperature (
o C )
(TX-ANT1, Pin=30dBm, f=940MHz, V
SS =-2.5V)
Loss vs. Ambient Temperature
0.0
0.2
0.4
0.6
0.8
1.0
-50 050 100
VDD=3.5V
VDD=3.0V
VDD=2.7V
RX-ANT1 Insertion Loss (dB)
Ambient Temperature (
o C )
(RX-ANT1, Pin=10dBm, f=885MHz, V
SS =0V)
Loss vs. Ambient Temperature
-70.0
-65.0
-60.0
-55.0
-50 050 100
VDD =3.5V
VDD =3.0V
VDD =2.7V
ACP offset:50kHz (dBc)
Ambient Temperature (
o C )
(Tx-Ant1, Pin=30dBm, f=940MHz, V
SS =-2.5V)
ACP(offset:50kHz) vs. Ambient Temperature
30
35
40
45
-50 050 100
VDD =3.5V
VDD =3.0V
VDD =2.7V
P-0.5dB (dBm)
Ambient Temperature (
o C )
(Tx-Ant1, f=940MHz, V
SS =-2.5V)
P-0.5dB vs. Ambient Temperature
15.0
20.0
25.0
30.0
35.0
-50 050 100
VDD=3.5V
VDD=3.0V
VDD=2.7V
P-1dB (dBm)
Ambient Temperature (
o C )
(Rx-Ant1, f=885MHz, V
SS =0V)
P-1dB vs. Ambient Temperature
20
25
30
35
40
-50 050 100
VDD =3.5V
VDD =3.0V
VDD =2.7V
TX-RX Isolation (dB)
Ambient Temperature (
o C )
(Tx-Ant1, Pin=30dBm, f=940MHz, V
SS =-2.5V)
RX Isolation vs. Ambient Temperature
NJG1521PE1
- 11 -
n
TYPICAL CHARACTERISTICS (1.5GHz Band: Measured on the PCB evaluation circuit)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
TX-ANT1 Insertion Loss (dB)
TX-RX Isolation (dB)
Frequency (GHz)
TX-ANT1 Insertion Loss
TX-RX Isolation
(with matching circuit for 1.5GHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
TX-EXT1 Insertion Loss (dB)
TX-RX Isolation (dB)
Frequency (GHz)
TX-EXT1 Insertion Loss
TX-RX Isolation
(with matching circuit for 1.5GHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-ANT1 Insertion Loss (dB)
Frequency (GHz)
RX-ANT1 Insertion Loss
RX-ANT2 Isolation
(with matching circuit for 1.5GHz band)
RX-ANT2 Isolation (dB)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-ANT2 Insertion Loss (dB)
RX-ANT1 Isolation (dB)
Frequency (GHz)
RX-ANT2 Insertion Loss
RX-ANT1 Isolation
(with matching circuit for 1.5GHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-EXT1 Insertion Loss (dB)
RX-EXT2 Isolation (dB)
Frequency (GHz)
RX-EXT1 Insertion Loss
RX-EXT2 Isolation
(with matching circuit for 1.5GHz band)
-5
-4
-3
-2
-1
0
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
RX-EXT2 Insertion Loss (dB)
RX-EXT1 Isolation (dB)
Frequency (GHz)
RX-EXT2 Insertion Loss
RX-EXT1 Isolation
(with matching circuit for 1.5GHz band)
NJG1521PE1
- 12 -
n
TYPICAL CHARACTERISTICS (1.5GHz Band: Measured on the PCB evaluation circuit)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
510 15 20 25 30 35
RX-ANT1 Insertion Loss (dB)
Input Power (dBm)
Insertion Loss vs. Input Power
(RX-ANT1, f=1501MHz, V DD=3.5V, V SS=0V)
-80
-75
-70
-65
-60
-55
-50
-45
15 20 25 30 35
Adjacent Channel Leakage Power (dBc)
Input Power (dBm)
ACP vs. Input Power
(TX-ANT1, f=1453MHz, V DD=3.5V, V SS=-2.5V)
50kHz offset
100kHz offset
0.0
0.5
1.0
1.5
15 20 25 30 35 40
TX-ANT1 Insertion Loss (dB)
Input Power (dBm)
Insertion Loss vs. Input Power
(TX-ANT1, f=1453MHz, V DD=3.5V, V SS=-2.5V)
-80
-75
-70
-65
-60
-55
2.7 2.9 3.1 3.3 3.5
Adjacent Channel Leakage Power (dBc)
VDD (V)
ACP vs. VDD
(TX-ANT1, f=1453MHz, Pin=30dBm, VSS=-2.5V)
50kHz offset
100kHz offset
15
20
25
30
35
40
0
20
40
60
80
100
15 20 25 30 35 40
Output Power (dBm)
IDD ( uA )
Input Power (dBm)
Output Power, I DD vs. Input Power
(TX-ANT1, f=1453MHz, V
DD=3.5V, V
SS=-2.5V)
P =36.9dBm
-0.5dB
5
10
15
20
25
30
0
2
4
6
8
10
510 15 20 25 30
Output Power (dBm)
IDD ( uA )
Input Power (dBm)
Output Power, I DD vs. Input Power
(RX-ANT1, f=1501MHz, V
DD=3.5V, V
SS=0V)
P =26.2dBm
-1dB
NJG1521PE1
- 13 -
n
TYPICAL CHARACTERISTICS (1.5GHz Band: Measured on the PCB evaluation circuit)
15.0
20.0
25.0
30.0
-50 050 100
P-1dB VS. Ambient Temperature
VDD =3.5V
VDD =3.0V
VDD =2.7V
P-1dB (dBm)
Ambient Temperature (
o C )
(RX-ANT1, f=1501MHz, V
SS =0V)
0.0
0.2
0.4
0.6
0.8
1.0
-50 050 100
Loss vs. Ambient Temperature
VDD=3.5V
VDD=3.0V
VDD=2.7V
TX-ANT1 Insertion Loss (dB)
Ambient Temperature (
o C )
(TX-ANT1, Pin=30dBm, f=1453MHz, V
SS =-2.5V)
25.0
30.0
35.0
40.0
45.0
-50 050 100
RX Isolation vs. Ambient Temperature
VDD=3.5V
VDD=3.0V
VDD=2.7V
TX-RX Isolation (dBm)
Ambient Temperature (
o C )
(TX-ANT1, Pin=30dBm, f=1453MHz, V
SS =-2.5V)
30.0
35.0
40.0
45.0
-50 050 100
P-0.5dB vs. Ambient Temperature
VDD=3.5V
VDD=3.0V
VDD=2.7V
P-0.5dB (dBm)
Ambient Temperature (
o C )
(Tx-Ant1, f=1453MHz, V
SS =-2.5V)
-75.0
-70.0
-65.0
-60.0
-50 050 100
ACP(offset:50kHz) vs. Ambient Temperature
VDD=3.5V
VDD=3.0V
VDD=2.7V
ACP offset:50kHz (dBc)
Ambient Temperature (
o C )
(TX-ANT1, Pin=30dBm, f=1453MHz, V
SS =-2.5V)
0.2
0.4
0.6
0.8
1.0
1.2
-50 050 100
Loss vs. Ambient Temperature
VDD=3.5V
VDD=3.0V
VDD=2.7V
RX-ANT1 Insertion Loss (dB)
Ambient Temperature (
o C )
(RX-ANT1, Pin=10dBm, f=1501MHz, V
SS =0V)
NJG1521PE1
- 14 -
n
TRUTH TABLE
”H”=VCTL(H),”L”=VCTL(L) ,”X”=H or L
CONTROL INPUT CONTROL OUTPUT
TX/RX Diversity IN/OUT
ROUTE CTL1 CTL2 CTL3 SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 SW9
TX-ANT1 HXHOFF OFF OFF ON ON OFF OFF OFF ON
TX-EXT1HXLOFF OFF ON OFF ON ON ON OFF OFF
RX-ANT1 L L HOFF OFF ON OFF ON OFF ON ON ON
RX-ANT2 LH H ON OFF OFF OFF OFF ON ON ON ON
RX-EXT1 L L L OFF OFF OFF ON ON ON OFF ON OFF
RX-EXT2 LHLOFF ON OFF OFF ON ON ON ON ON
n
PIN CONFIGRATION (TOP VIEW)
6
7
8
9
10
11
13
12
14 15 16 17
19
18
20
21
22
23
24
1
2
3
45
ANT-SW
DECORDER
VSS CTL3 CTL2 GND CTL1 VDD
GND
GND
GND
TER1
GND
RX
GND ANT1
GNDANT2TER2 GND
TX
GND
EXT1
GND
EXT2
GND
SW1SW2
SW3
SW4
SW4
SW5
SW6
SW7
SW8
SW9
NJG1521PE1
- 15 -
nRECOMMENDED CIRCUIT(TX-ANT1 PASSING)
6
7
8
9
10
11
13
12
14 15 16 17
19
18
20
21
22
23
24
1234
5
ANT-SW
DECORDER
R1(*)
100kΩ
R2(*)
100kΩ
R3(*)
100kΩ
0V/3V
0V/3V
0V/3V
CTL1CTL2CTL3
C2
1000pF
3.5V
C1
1000pF
-2.5V
VDD
RX
C10
5pF
C3
C4
56pF
L1
(TER1)
ANT1
C9
10pF
(TER2)
EXT1
C8
56pF EXT2
VSS
50Ω
50Ω
50Ω
50Ω
C5
56pF
ANT2
50Ω
TX
C6
L2
50Ω
C7
56pF
C6
22pF(800MHz)
9pF(1.5GHz)
L2
22nH(800MHz)
8.2nH(1.5GHz)
C3
16pF(800MHz)
7pF(1.5GHz)
L1
15nH(800MHz)
6.8nH(1.5GHz)
(*) If the voltage level of CTL1~CTL3 is unstable, please connect R1~R3 with GND or VDD respectively.
NJG1521PE1
- 16 -
Board total Loss (Capacitor, Connector, and PCB)
Pass route 800MHz Band
(dB) 1.5GHz Band
(dB)
TX-ANT1
TX-EXT1 0.23 0.30
RX-ANT1
RX-ANT2
RX-EXT1
RX-EXT2
0.22 0.30
n
RECOMMENDED PCB DESIGN
VALUE
800MHz Band 1.5GHz Band COMMENT
R1-R3 100KΩ
C1, C2 1000pF MURATA(GRM36)
C4, C5, C7, C8 56pF MURATA(GRM36)
C3 16pF 7pF MURATA(GRM36)
C6 22pF 9pF MURATA(GRM36)
C9 10pF MURATA(GRM36)
C10 5pF MURATA(GRM36)
L1 15nH 6.8nH TAIYO-YUDEN(HK1005)
L2 22nH 8.2nH TAIYO-YUDEN(HK1005)
PRECAUTIONS
[1] The bypass capacitors should be connected to the VDD, VSS terminals as close as possible
respectively.
[2] For good RF performance, the ground terminals should be directly connected to the ground
patterns and through-holes as close as possible by using relativity wide pattern.
PCB: FR-4, t= 0.2mm
Strip width: 0.4mm
PARTS LIST
EXT1
EXT2
TX
ANT2
ANT1
RX
VSS
CTL3
CTL2
CTL1
V
DD
GND
R1
R3
R2
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
L1
L2
NJG
1521PE1
NJG1521PE1
- 17 -
n
PACKAGE OUTLINE (FFP24-E1)
UNITS : mm
PCB : Ceramic
OVER COAT : Epoxy resin
LEAD SURFACE : Au
WEIGHT : 30mg
Cautions on using this product
This product contains Gallium-Arsenide (GaAs) which is a harmful material.
• Do NOT eat or put into mouth.
• Do NOT dispose in fire or break up this product.
• Do NOT chemically make gas or powder with this product.
• To waste this product, please obey the relating law of your country.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle with
care to avoid these damages.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
0.10
0.300.50.5
0.365 0.27
0.30
0.20
2pinINDEX
1pinINDEX
0.17
3.5±0.1
0.85±0.15
0.254±0.1
0.35