NJG1672LK4
SP9T ANTENNA SWITCH GaAs MMIC
GENERAL DESCRIPTION
The NJG1672LK4 is a GaAs SP9T antenna switch IC for
GSM/TD-SCDMA multi-band handsets. The IC contains a MMIC
switch die with on-chip logic circuits and a LTCC substrate with
built-in three LPFs on GSM/TD-SCDMA transmit paths for
suppression of transmitter harmonics.
This switch IC features very low harmonics, low insertion loss,
high Isolation and small package size.
This IC has ESD protection devices to achieve excellent ESD
performance.
No DC Blocking capacitors are required for RF ports.
FEATURES
Built-in three LPFs
Low harmonics
Low insertion loss
Small package size
PIN CONFIGURATION
(Top view)
VC2
VC1
VC3
VC4
VC5
VC6
PACKAGE OUTLINE
NJG1672LK4
Attenuation 35/32/30 dB typ. on GSM850/900 TX @2fo / 3fo / 4fo
Attenuation 32/45 dB typ. on GSM1800/1900 TX @2fo / 3fo
Attenuation 35 dB typ. on LCR TX @2fo / 3fo
-78/-75dBc typ. on GSM850/900 TX @2fo / 3fo, Pin=+35dBm, V
DD
=2.7V
-85dBc typ. on GSM1800/1900 TX @2fo / 3fo, Pin=+32dBm, V
DD
=2.7V
-90/-95dBc typ. on LCR TX @2fo / 3fo, Pin=+26dBm, V
DD
=2.7V
1.0dB typ. on GSM850/900 TX @f=915MHz, Pin=35dBm, V
DD
=2.7V
0.9dB typ. on GSM1800/1900 TX @f=1910MHz, Pin=32dBm, V
DD
=2.7V
1.0dB typ. on LCR TX @f=2025MHz, Pin=26dBm, V
DD
=2.7V
LCSP24-K4 (Package size: 3.8x3.8x0.9mm typ.)
PIN CONNECTION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
VC1
GND
G_RX1(GSM850 RX)
G_RX2(GSM900 RX)
G_RX3(GSM1800 RX)
G_RX4(GSM1900 RX)
GND
G_TX2(GSM1800/1900 TX)
GND
G_TX1(GSM850/900 TX)
GND
ANT
GND
LCR_TX(LCR 1.9G/2.0G TX)
GND
LCR_RX2(LCR 2.0G RX)
LCR_RX1(LCR 1.9G RX)
GND
VDD
VC6
VC5
VC4
VC3
VC2
1
24
23
22
21
20
19
VDD
DECODER
GND
2
GaAs Dice
18
GND
G_RX1
3
17
LCR_RX1
G_RX2
4
LPF3
16
LCR_RX2
GND
G_RX3
5
15
G_RX4
6
LPF2
LPF1
9
GND
14
LCR_TX
GND
7
8
G_TX2
10
G_TX1
11
GND
12
ANT
13
GND
Ver. 2010-04-12
-1-
NJRC [ NEW JAPAN RADIO ]
