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LCSM Hybrid Amplifier
QBH-8706
Parameters Typical Guaranteed Units
25°C -40 to +70°C
Frequency range 1850 - 1910 MHz
Small signal gain 27.0 dB
Gain flatness 0.1 0.5 dB p-p
Reverse isolation 44 36 dB
VSWR Input 1.7:1 2.5:1
Output 1.5:1 2.5:1
1 dB compression +17 +14 dBm
Output intercept point
3rd Order +32 +26 dBm
2nd Order dBm
Noise figure 1.2 1.9 dB
DC supply voltage* 5Vdc
DC supply current 140 180 mA
Gain vs. Vdc dB/Volt
Package/Housing LCSM (E52-19422)
*all specification ratings are based on DC supply voltage ± 1%
TYPICAL S-PARAMETER DATA
S11 S21 S12 S22
MHz dB Ang dB Ang dB Ang dB Ang
1850 -10.5 141.9 26.2 -51.8 -44.3 -157.8 -14.3 35.1
1860 -10.9 137.3 26.4 -54.8 -44.7 -154.8 -13.9 29.8
1870 -11.1 132.3 26.6 -58.0 -44.0 -158.8 -13.5 24.1
1880 -11.2 126.7 26.9 -61.4 -42.9 -162.8 -13.2 17.7
1890 -11.5 119.3 27.0 -65.1 -43.1 -167.0 -12.9 11.4
1900 -11.6 112.4 27.2 -68.8 -43.9 -171.2 -12.6 4.9
1900 -11.5 113.8 27.2 -68.7 -42.7 -167.7 -12.6 4.7
1910 -11.6 107.1 27.4 -72.2 -42.5 -178.0 -12.3 -1.8
ABSOLUTE MAXIMUM RATINGS
Power supply voltage
Sustaining .................................................... +7.0 Vdc
Pulse (transient) ........................................... +7.0 Vdc
Temperature
Operating ............................................-55 to +125°C
Storage ................................................-65 to +150°C
Maximum input drive ........................................ 1.0 Vrms
Thermal rise, junction-to-case ............................. +25°C
H91-8706.10/29/97, Revision Preliminary
25°C -40°C +70°C
•Low cost surface
mount package
•Very Low noise figure,
1.2 dB typical
•Low VSWR
•High OIP3, +32 dBm
typical
1850 1860 1870 1880 1890 1900 1910
Gain (dB)
16
19
22
25
28
31
34
MHz
1850 1860 1870 1880 1890 1900 1910
Reverse Isolation (dB)
-70
-60
-50
-40
-30
-20
-10
MHz
1850 1860 1870 1880 1890 1900 1910
Input/Output VSWR 25°C
1.0
1.2
1.4
1.6
1.8
2.0
Output
Input MHz
1850 1860 1870 1880 1890 1900 1910
Deviation from linear phase 25°C (degrees)
-10
-5
0
5
10
MHz
1850 1860 1870 1880 1890 1900 1910
Noise Figure (dB)
0.0
1.0
2.0
3.0
4.0
MHz
1850 1860 1870 1880 1890 1900 1910
Output P1dB (dBm)
12
13
14
15
16
17
18
MHz
1850 1860 1870 1880 1890 1900 1910
3rd order intermodulation distortion (dBm)
22
24
26
28
30
32
34
MHz
