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SP8802
3.3GHz / 2 fixed Modulus Divider Advance Information
DS2111 Issue 7.2 June 1999
Features
q q q q q q q q
Very High Speed Operation 3.3GHz Silicon Technology for low Phase Noise (Typically better than -140dBc/Hz at 10kHz) Specified Over the Full Military Temperature Range Low Power Dissipation 420mW (typ) 5V Single Supply Operation High Input Sensitivity Very Wide Operating Frequency Range Available as DESC SMD 5962-9066101MPA
Ordering Information
SP8802/A/DG Military temperature range DES9066101/AC/DGAZ (SMD)
Thermal Characteristics
ja = 150C/W jc = 50C/W
Description
The SP8802 is one of a range of very high speed low power prescalers for professional and military applications. The device features a complementary output stage with on chip current source for the emitter follower outputs
Absolute Maximum Ratings
Supply voltage VCC Clock Input voltage Storage temperature range Junction temperature 6.5V 2.5V p-p -65C to +150C +175C
SUPPLY 1 VCC VREF (2V) 400 400 7 /2 6 INPUT INPUT 2 3 10mA 6.75mA 2mA OUTPUT OUTPUT 500 500
5 GND
Figure 1 SP8802 Block diagram
SP8802
Advance Information
INPUT INPUT NC
SP8802
VCC
1 2 3 4
8 7 6 5
NC OUTPUT OUTPUT GND
DG8
Figure 2 Pin connections
Electrical Characteristics
Guaranteed over the temperature range Tamb -55C to +125C (see note) and supply voltage range 4.75V to 5.25V. Tested at Tamb = -55C and +100C, VCC = 4.75V and 5.25V. Characteristic
Supply current Input sensitivity 0.65GHz to 2.8GHz 3.3GHz Input impedance (series equivalent) Output Voltage with fin = 1000MHz Output Voltage with fin = 3GHz
NOTE: Devices must be used with a suitable heatsink to maintain chip temperature below 175C when operating at Tamb>100C.
500
400
VIN (mV RMS INTO 50 OHMS)
300
200
100
2
,,
1 2, 3 2, 3 6, 7 6, 7 0.8 50 2 1 0.35 mA mV mV pF Vp-p Vp-p VCC = 5V RMS sinewave measured in 50 ohm system. See Figs. 3 & 4 VCC = 5V VCC = 5V load as Fig. 4
Pin
Min
Value Typ 84
Max 100 175 400
Units
Conditions
*
GUARANTEED* OPERATING WINDOW
Tested as specified in Table of electrical characteristics
1
2
3
4
FREQUENCY (GHz)
Figure 3 Typical input sensitivity
Advance Information
SP8802
SIGNAL GENERATOR COAXIAL SWITCH 50 +5V 1 1n 2 8 7
50
POWER METER FROM OUTPUT
0.1
470
3p
SP8802
3 0.1 1n 4 6 5
RATIO COUNTER
OUTPUT LOAD FOR AMPLITUDE MEASUREMENTS
Figure 4 Test circuit
Figure 5 Typical input impedance
3
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