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CASE STYLEH 14 1
RF POW ER MO DU LE
LINEAR BASE STATI ON APPLIC ATIONS
.LINEAR POWER AMPLIFI ER
.860 - 900 MHz
.26 VOLTS
.INPUT/OUTPUT 50 OHMS
.P
OUT
= +44.7 dBm PEP
.GAIN
=
35 dB MIN.
DESCRI P TI ON
The STM901-30 module is d esigned for d igital
cellular radio ba se station a pplications in t he
860-900 MHz fr equency range operating at
26V.
The STM901-30 is designed t o meet the low
distortion, high linearity requirements of modern digital cellular base station e quipment.
PI N CONNE CTION
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
STM 9 01- 30
1. RF Input 2. V
G1
3. deleted 4. V
G2
5. V
D
6. V
B1
7. Cap18. V
C1
9. V
B2
10. Cap211. V
C2
12. RF Output
ORDERCODE
STM901-30
BRANDING
STM901-30
Symbol Parameter Value Unit
V, VD,VC1,VC2DC Supply Voltage 28 Vdc
I
Q1 Bias Current @ V
= 26V, 1st Stage
0.40 Adc
I
Q2 Bias Current @ V = 26V, 2nd St age
0.40 Adc
I
Q3 Bias Current @ V = 26V, 3rd St age
0.54 Adc
I
Q4 Bias Current @ V = 26V, 4th Stage
1.62 Adc
P
IN
RF Input Power (P
OUT
< 4 4.7 dBm PEP) 14 dBm PEP
P
OUT
RF Ou t p ut Powe r (V = 26V)
48 dBm PEP
T
STG
Storage Temperature
− 30 to +100
°
C
T
OPER
Operating Temperature
− 30 to +100
°
C
October 31, 1997 1/8
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ELECTRICAL SP ECI FICATIONS (T
case
=25°C, VD,VC1,VC2= 26V) (I
DQ1
= 100 mA,
I
DQ2
= 180mA, I
CQ1
=50mA,I
CQ2
=150mA)
Symbol Parameter Test Cond itions
Value
Uni t
Min. Typ. Max.
BW Frequency Range 860 — 900 MHz
G
P
Power Gain
P
OUT
=
+44.7 dBm PEP
35 38 — dB
η
dt
*
Double-Tone
Efficiency
P
OUT
=
+44.7 dBm PEP
27 30 — %
Input VSWR
P
OUT
=
+44.7 dBm PEP
— 1.5:1 3:1
IMD* Intermodulation
Distortion
P
OUT
=
+44.7 dBm PEP
—
−33 −26
dBT**
— Load Mismatch
VSWR
=
5:1 V= 26Vdc
P
OUT
=
+44.7 dBm PEP
No Degradation in Output
Power
Note : * Tw o-Tone test ; 20 KHz sep ar ation ** dB T - i n dB, referenced t o tone lev el (See Fi gur e 1 belo w )
20 kHz
PEP (PeakEnvelope Power)Carrier Level
Total Avg. Powerof TwoTone
AVERAGE Powerof Each Tone
3 dB min
3 dB min
26 dB min
freq
Max IMD in dBT
Figure 1
STM901-30
2/8 October 31, 1997
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POWER GAIN vs OUTPUT POWER &
FREQUENCY
POWER GAIN vs OUTPUT POWER &
FREQUENCY
POWER GAIN vs OUTPUT POWER &
FREQUENCY
POWER GAIN vs PEP & FREQUENCY
POWER GAIN vs PEP & FREQUENCY
POWER GAIN vs PEP & FREQUENCY
PEP [dBm]
POWER GAIN [dB]
35 40 45
36.5
37.5
38.5
39.5
40.5
41.5
42.5
f=900 MHz
f=860 MHz
f=925 MHz
f=960 MHz
Vs=26.0, Tc=25°C
Iq=0.1/0.18/0.1/0.15 A
TYPICAL PERFORMANCE
STM901-30
October 31, 1997 3/8