NES1720P-140
HALF (EACH SIDE) DEVICE OPTIMAL INPUT AND
OUTPUT IMPEDANCES FOR CDMA
(at VDS = 12 V and IDS = 2.15 A half of the device)
Frequency
(GHz)
RIN
(Ohm)
XIN
(Ohm)
ROUT
(Ohm)
XOUT
(Ohm)
ACPR at
885KHz(dBc)
Z
IN
ZOUT
1.825
1.840
1.855
1.870
1.885
11.8
14.9
11.6
9.6
14.0
14.4
3.8
8.0
8.9
7.6
6.9
6.7
3.3
7.7
-29.8
-30.4
-30.3
-29.9
-29.6
G
G
D
D
9.5
Ground
Ground
7.6
10.3
9.3
12.8
8.7
ZIN = RIN + jXIN (Conjugate of source impedance).
ZOUT = ROUT + jXOUT (Conjugate of load impedance).
Z
IN
ZOUT
ZIN is the optimal gate-to-ground input impedance of half of the device.
ZOUT is the optimal drain-to-ground output impedance of half of the device.
The input circuit is optimized for input return loss and the output circuit is optimized
for ACPR of CDMA signal.
CDMA signal description:
1. Four tones total and each tone has 9 channels.
2. Optimal circuit at the worst point among the 4 tones.
3. Chip rate: 1.228800 Mcps
4. For half device, total output average power is set at 42 dBm (36 each tone).
5. Peak/Average: 10 dB
6. Signal type:
2.5 MHz
1.2288 MHz
Offset: 885 KHz
EXCLUSIVE NORTH AMERICAN AGENT FOR
RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES • Headquarters • 4590 Patrick Henry Drive • Santa Clara, CA 95054-1817 • (408) 988-3500 • Telex 34-6393 • FAX (408) 988-0279
24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) • Internet: http://WWW.CEL.COM
03/09/2000
DATA SUBJECT TO CHANGE WITHOUT NOTICE
CEL [ CALIFORNIA EASTERN LABS ]
