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NJG1544HC3
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2x2 Antenna SWITCH GaAs MMIC
QGENERAL DESCRIPTION NJG1544HC3 is a 2x2 antenna switch IC designed for the IEEE 802.11b or 802.11g (2.4GHz band) wireless LAN application. This device includes logic decoder function, and can be operated by 2 bits signal to control Tx/Rx and ANT1/ANT2 switching. This switch features high isolation and low loss. The ultra small & ultra thin USB10-C3 package is adopted. QFEATURES OSingle low voltage control OLow insertion loss OHigh isolation OHandling power (TX port) OLow current consumption OUltra small & ultra thin package QPIN CONFIGURATION USB10-C3 Type (TOP VIEW)
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D E C O D E R
QPACKAGE OUTLINE
NJG1544HC3
+2.5~+5.5V 0.35dB typ. @TX-ANT2,f=2.5GHz, PIN=20dBm 0.50dB typ. @RX-ANT1,RX-ANT2,f=2.5GHz, PIN=10dBm 23dB typ. @f=2.5GHz, PIN=20dBm 28dBm max. @f=2.5GHz, VDD=2.7V 120uA typ. @f=2.5GHz USB10-C3 (Package size: 1.5x2.0x0.75mm)
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1
1 2 3 4 5 6 7 8 9 10
ANT1 CTL1 CTL2 ANT2 GND TX GND VDD RX GND
QTRUTH TABLE
"H"=VCTL(H) "L"=VCTL(L) "X"="H" or "L" (Don't care) PASS RX-ANT2 RX-ANT1 TX-ANT2 CONTROL SIGNAL CTL1 CTL2 L L L H H X
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NJG1544HC3
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QABSOLUTE MAXIMUM RATINGS
PARAMETER Input Power Supply Voltage Control Voltage Power Dissipation Operating Temp. Storage Temp. SYMBOL Pin VDD VCTL PD Topr Tstg CONDITIONS TX, ANT2 Terminal, VDD=2.7V, VCTL=0/2.7V RX, ANT1 Terminal, VDD=2.7V, VCTL=0/2.7V VDD Terminal CTL1, CTL2 Terminal At on PCB board RATINGS 30 25 7.5 7.5 135 -40~+85 -55~+125 UNITS dBm dBm V V mW °C °C
QELECTRICAL CHARACTERISTICS
General conditions: VDD=2.7V, VCTL=0/2.7V, ZS=Zl=50Ω, Ta=25°C Tested on PCB circuit as shown below. Insertion loss of each connectors, striplines, and capacitors are excluded. SYMBOL VDD IDD VCTL (L) VCTL (H) ICTL LOSS1 LOSS2 ISL1 ISL2 P-1dB VSWR TSW f=2.5GHz TX-ANT2, f=2.5GHz, PIN=20dBm RX-ANT1, RX-ANT2, f=2.5GHz, PIN=10dBm TX-ANT2, f=2.5GHz, Pin=20dBm RX-ANT1, RX-ANT2, f=2.5GHz, Pin=10dBm TX-ANT2, f=2.5GHz f=0.1~2.5GHz, ON State f=0.1~2.5GHz f=2.5GHz CONDITIONS MIN 2.5 0 2.0 20 20 26 TYP 2.7 120 30 0.35 0.5 23 23 28 1.1 200 MAX 5.5 150 0.8 VDD 40 0.65 0.8 1.3 300 ns UNITS V uA V V uA dB dB dB dB dBm
PARAMETERS Supply voltage Operating current Control voltage (LOW) Control voltage (HIGH) Control current Insertion loss 1 Insertion loss 2 Isolation 1 Isolation 2 Pin at 1dB compression point VSWR Switching time
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NJG1544HC3
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QTERMINAL INFORMATION No. 1 2 3 4 5 6 7 8 SYMBOL ANT1 CTL1 CTL2 ANT2 GND TX GND VDD
DC voltage (VDD). Control voltage input terminal. This terminal is set to High-Level (+2V~VDD) or Low-Level (0~+0.8V). Control voltage input terminal. This terminal is set to High-Level (+2V~VDD) or Low-Level (0~+0.8V). RF transmitting/receiving port. An external capacitor of 56pF is required to block DC voltage (VDD) . Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance. RF transmitting port. An external capacitor of around 56pF is required to block DC voltage (VDD). Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance. Positive voltage supply terminal. The positive voltage (+2.5~+5.5V) have to be supplied. Please connect a bypass capacitor with GND terminal for excellent RF performance. RF receiving port. An external capacitor of around 56pF is required to block DC voltage (VDD) . Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance.
DESCRIPTION
RF receiving port. An external capacitor of around 56pF is required to block
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RX GND
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NJG1544HC3
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QELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
RX-ANT2 Insertion Loss vs. Frequency
(RX-ANT2 ON, VDD=2.7V, Pin=0dBm) 0.0 0
RX-ANT2 Isolation vs. Frequency
(TX-ANT2 ON, VDD=2.7V, Pin=0dBm)
Insertion Loss (dB)
-10 -0.5
Isolation (dB)
-20
-1.0
-30
-1.5 -40
-2.0 0.0
0.5
1.0
1.5
2.0
2.5
3.0
-50 0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
RX-ANT1 Insertion Loss vs. Frequency
(RX-ANT1 ON, VDD=2.7V, Pin=0dBm) 0.0
0
RX-ANT1 Isolation vs. Frequency
(RX-ANT2 ON, VDD=2.7V, Pin=0dBm)
Insertion Loss (dB)
-10
-0.5
-20
-1.0
-30
-1.5
-40
-2.0 0.0
0.5
1.0
1.5
2.0
2.5
3.0
-50 0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
TX-ANT2 Insertion Loss vs. Frequency
(TX-ANT2 ON, VDD=2.7V, Pin=0dBm) 0.0
0
TX-ANT2 Isolation vs. frequency
(RX-ANT2 ON, VDD=2.7V, Pin=0dBm)
Insertion Loss (dB)
-10
-0.5
Isolation (dB)
0.5 1.0 1.5 2.0 2.5 3.0
-20
-1.0
-30
-1.5
-40
-2.0 0.0
-50 0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
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NJG1544HC3
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QELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
RX-ANT2 VSWR vs. Frequency
(RX-ANT2 ON, ANT2 port, VDD=2.7V) 2.0
Switching Speed
(RX-AN.