Dual LNA
NJG1122PB4
www.DataSheet4U.com
W-CDMA Dual LNA GaAs MMIC
QGENERAL DESCRIPTION The NJG1122PB4 is a Dual band LNA IC desi...
Description
NJG1122PB4
www.DataSheet4U.com
W-CDMA Dual LNA GaAs MMIC
QGENERAL DESCRIPTION The NJG1122PB4 is a Dual band LNA IC designed for W-CDMA cellular phone of 2.1GHz and 800MHz band. This IC has a LNA pass-through function to select high gain mode or low gain mode. An ultra small and ultra thin package of FFP12–B4 is adopted. QFEATURES OLow voltage operation OLow CTL voltage operation OLow current consumption QPACKAGE OUTLINE
NJG1122PB4
OSmall package
+2.7V +1.85V 2.4mA typ. @2.1GHz band (High Gain Mode) 2.0mA typ. @800MHz band (High Gain Mode) 4uA typ. @800MHz / 2.1GHz band (Low Gain Mode) FFP12-B4 (Package size: 2.0 x 2.0 x 0.65mm typ)
[High gain mode] OHigh gain OLow noise figure OHigh Input IP3 [Low gain mode] OGain OLow noise figure OHigh Input IP3
14.5dB typ. @fRF =2140MHz16.0dB typ. @fRF =885MHz 1.7dB typ. @fRF=2140MHz 1.45dB typ. @fRF =885MHz -3.5dBm typ. @ fRF=2140.0+2140.1MHz, Pin=-36dBm -3.5dBm typ. @fRF=885.0+885.1MHz, Pin=-36dBm -4.0dB typ. @fRF=2140MHz -4.5dB typ. @fRF=885MHz 4.0dB typ. @fRF=2140MHz 4.5dB typ. @fRF=885MHz +2.5dBm typ. @fRF=2140.0+2140.1MHz, Pin=-20dBm +2.0dBm typ. @fRF=885.0+885.1MHz, Pin=-20dBm
QPIN CONFIGURATION (Top View)
VINV 9 VCTL1 8 GND
7
RFIN2
RFOUT2
10 2.1GHz Band Logic Circuit
6
GND
GND
11
5
RFIN1
RFOUT1
12 800MHz Band
4
Pin Connection 1. GND 2. VCTL2 3. EXTCAP 4. RFOUT1 (800MHz band) 5. GND 6. RFOUT2 (2.1GHz band) 7. GND 8. VCTL1 9. VINV 10. RFIN2 (2.1GHz band) 11. GND 12. RFIN1 (800MHz band)
GND
1
VCTL2
2
EXTCAP
...
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