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SP8803
3.3GHZ / 32 Fixed Modulus Divider
DS3156
ISSUE 8.0
October 2002
Features
G G G G G G G
Ordering Information
SP8803/A/DG Military temperature range
Very High Speed Operation 3.3GHz Silicon Technology for low Phase Noise (Typically better than -150dBc/Hz at 10kHz) Specified Over the Full Military Temperature Range Low Power Dissipation 390mW (typ) 5V Single Supply Operation High Input Sensitivity Very Wide Operating Frequency Range
Thermal Characteristics
ja = 150C/W
Description Absolute Maximum Ratings
The SP8803 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. Supply voltage VCC Clock Input voltage Storage temperature range Junction temperature
SUPPLY 1 VCC
VREF (2V)
6.5V 2.5V p-p -65C to +150C +175C
500 400
500
400
7
/32
6 INPUT INPUT 2 3 2.5mA 6.75mA 2mA
OUTPUT OUTPUT
5 GND
Figure 1 SP8803 Block diagram
SP8803
INPUT
SP8803
VCC
1 2 3 4
8 7 6 5
NC
OUTPUT
INPUT
OUTPUT
NC
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 +125C, 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 = 650MHz Output Voltage with fin = 3GHz Pin 1 2, 3 Min Value Typ
78
NOTE: Devices must be used with a suitable heatsink to maintain chip temperature below 175C when operating at Tamb>105C.
500
400
VIN (mV RMS INTO 50 OHMS)
300
200
100
;;; ;;;
175 400
Max 90
Units
mA
Conditions V CC = 5V RMS sinewave measured in 50 ohm system. See Figs. 3 & 4
2, 3 6, 7 6, 7
0.815
50 2 1.09 1.03
1.36
mV mV pF Vp-p Vp-p
V CC = 5V V CC = 5V load as Fig. 4
*
GUARANTEED* OPERATING WINDOW
Tested as specified in Table of electrical characteristics
1
2
3
4
FREQUENCY (GHz)
Figure 3 Typical input sensitivity
2
SP8803
SIGNAL GENERATOR COAXIAL SWITCH 50 +5V
50
POWER METER FROM OUTPUT
0.1
470
3p
1
1n
8 7
2
SP8803
3
0.1 1n
6 5
RATIO COUNTER
OUTPUT LOAD FOR AMPLITUDE MEASUREMENTS
4
Figure 4 Test circuit
Figure 5 Typical input impedance
3
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TECHNICAL DOCUMENTATION - NOT FOR RESALE

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