Document
Product Specification
S8740190
Si Push Pull, 40 – 870MHz, 18.5dB min. Gain @ 870MHz, 240mA max. @ 24VDC
FEATURES
• • • • • • Excellent linearity Superior return loss performance Extremely low distortion Optimal reliability Low noise Unconditionally stable under all terminations
S8740190
APPLICATION
• 40 to 870 MHz CATV amplifier systems
DESCRIPTION
• Hybrid Push Pull amplifier module employing silicon dice Si Push Pull Hybrid 40 – 870MHz 18.5dB min. Gain @ 870MHz 240mA max. @ 24VDC
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134)
SYMBOL
Vi Vov Tstg Tmb
PARAMETER
RF input voltage (single tone) DC supply over-voltage (5 minutes) storage temperature operating mounting base temperature
MIN.
- 40 - 20
MAX.
70 30 + 100 + 100
UNIT
dBmV V °C °C
CHARACTERISTICS
Table 1: S-Parameter, Noise Figure, DC Current; VB = 24V; Tmb = 30°C; ZS = ZL = 75 Ω
SYMBOL
Gp SL FL S11 S22
PARAMETER
power gain slope 1) flatness of frequency response 2) input return loss output return loss
CONDITIONS
f = 50 MHz f = 870 MHz f = 40 to 870 MHz f = 40 to 870 MHz f = 40 to 870 MHz f = 40 to 80 MHz f = 80 to 160 MHz f = 160 to 870 MHz f = 50 MHz f = 50 MHz f = 600 MHz f = 750 MHz f = 870 MHz
MIN.
18.0 18.5 0.0 20.0 20.0 18.5 18.0 -45 -
TYP.
18.5 19.5 1.0
MAX.
19.0 2.0 ± 0.3 +45 5.0 6.0 7.0 8.0 240.0
UNIT
dB dB dB dB dB dB dB dB Deg dB dB dB dB mA
S21 F
phase response noise figure
4.2
Itot
total current consumption (DC)
5.4 230.0
Page 1 of 4
2004 Jun 01
Document Revision Level C
Free Datasheet http://www.datasheet4u.com/
Product Specification
S8740190
Si Push Pull, 40 – 870MHz, 18.5dB min. Gain @ 870MHz, 240mA max. @ 24VDC
Notes: 1) 2)
The slope is defined as the difference between the ´ideal gain´ at the start frequency and the ´ideal gain´ at the stop frequency. The gain flatness is the deviation of any amplitude value from the ideal gain curve calculated by the following mathematical model: Gain = G + C*SQRT(fx/f1). G = constant gain (frequency independent); C = cable constant; fx = desired frequency; f1 = start frequency. The cable constant C must be optimized during the flatness determination so that the curve best fits the measured gain figures. The start value for C is calculated using the formula Cstart = (Gn–G1)/(SQRT(fn/f1)-1), where Gn = the measured gain at the stop frequency, G1 = the measured gain at the start frequency and fn = stop frequency. The value of G is chosen so that the max. positive deviation of the measured gain from the ´ideal gain´ curve is the same as the max. negative deviation. The value of C is adapted by ± 0.001 until the ´ideal gain´ curve best fits the measured curve. The flatness of the module gain is the maximum deviation in measured gain from the optimized gain formula.
CHARACTERISTICS
Table 2: Distortion data; VB = 24V; Tmb = 30°C; ZS = ZL = 75 Ω
SYMBOL
CTB
PARAMETER
composite triple beat
CONDITION
79 ch. flat; Vo = 44 dBmV 112 ch. flat; Vo = 44 dBmV 2) 132 ch. flat; Vo = 42 dBmV 3) 79 ch. flat; Vo = 44 dBmV 1) 112 ch. flat; Vo = 44 dBmV 2) 132 ch. flat; Vo = 42 dBmV 3) 79 ch. flat; Vo = 44 dBmV 1) 112 ch. flat; Vo = 44 dBmV 2) 132 ch. flat; Vo = 42 dBmV 3)
4) 5) 6) 1)
MIN.
62.0 59.0 59.0
TYP.
-65.0 -56.0 -56.0 -62.0 -59.0 -61.0 -65.0 -65.0 -62.0
MAX.
-61.0 -54.0 - 53.0 -60.0 -57.0 - 59.0 -62.0 -59.0 - 58.0 -72.0 -65.0 -70.0 -
UNIT
dBc
XMOD
cross modulation
dBc
CSO
composite second order distortion second order distortion
dBc
d2
dBc
V0
output voltage
dim = -60 dB 7) dim = -60 dB 8) dim = -60 dB 9)
dBmV
Notes: 1) 2) 3) 4) 5) 6) 7) 8) 9)
79 channels, NTSC frequency raster: 55.25 MHz to 547.25 MHz, +44 dBmV flat output level. 112 channels, NTSC frequency raster: 55.25 MHz to 745.25 MHz, +44 dBmV flat output level. 132 channels, NTSC frequency raster: 55.25 MHz to 865.25 MHz, +42 dBmV flat output level. f1 = 55.25 MHz; V1 = 44 dBmV; f2 = 493.25 MHz; V2 = 44 dBmV; fTEST = f1 + f2 = 548.5 MHz. f1 = 55.25 MHz; V1 = 44 dBmV; f2 = 691.25 MHz; V2 = 44 dBmV; fTEST = f1 + f2 = 746.5 MHz. f1 = 55.25 MHz; V1 = 44 dBmV; f2 = 805.25 MHz; V2 = 44 dBmV; fTEST = f1 + f2 = 860.5 MHz. f1 = 540.25 MHz; V1 = Vo; f2 = 547.25 MHz; V2 = Vo – 6 dB; f3 = 549.25 MHz; V3 = Vo – 6 dB; fTEST = f1 + f2 - f3 = 538.25 MHz, according to DIN45004B. f1 = 740.25 MHz; V1 = Vo; f2 = 747.25 MHz; V2 = Vo – 6 dB; f3 = 749.25 MHz; V3 = Vo – 6 dB; fTEST = f1 + f2 - f3 = 738.25 MHz, according to DIN45004B. f1 = 851.25 MHz; V1 = Vo; f2 = 858.25 MHz; V2 = Vo – 6 dB; f3 = 860.25 MHz; V3 = Vo – 6 dB; fTEST = f1 + f2 - f3 = 849.25 MHz, according to DIN45004B.
Composite Second Order (CSO) The CSO parameter (both sum and difference products) is defined by the NCTA. Composite Triple Beat (CTB) The CTB parameter is defined by the NCTA. Cross Modulation (XMOD) Cross modulation (XMOD) is measured at baseband (selective voltmeter method), referenced to 100% modulation of the carrier being tested.
Page 2 of 4
2004 Jun 01
Document Revision Level C
Free Datasheet http://www.d.