SP8808
3.3GHz
÷
8 Fixed Modulus Divider
Advance Information
DS2113
Issue 7.2
june 1998
Features
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Ordering Information
SP8808/A/DG Military temperature range
DES9157001/AC/DGAZ (SMD
)
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 345mW (typ)
5V Single Supply Operation
High Input Sensitivity
Very Wide Operating Frequency Range
Available as DESC SMD 5962-9157001MPA
Thermal Characteristics
θja
= 150°C/W
θjc
= 50°C/W
Description
The SP8808 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 V
CC
Clock Input voltage
Storage temperature range
Junction temperature
6.5V
2.5V p-p
-65°C to +150°C
+175°C
SUPPLY
1
VCC
V
REF
(2V)
400
400
7
÷8
6
INPUT
INPUT
2
3
2.5mA
6.75mA
2mA
OUTPUT
OUTPUT
500
500
5
GND
Figure 2 SP8808 Block diagram
SP8808
Advance Information
INPUT
INPUT
NC
SP8808
VCC
1
2
3
4
8
7
6
5
NC
OUTPUT
OUTPUT
GND
DG8
Figure 1 Pin connections
Electrical Characteristics
Guaranteed over the temperature range T
amb
-55°C to +125°C (see note) and supply voltage range 4.75V
to 5.25V. Tested at T
amb
= -55°C and +110°C, V
CC
= 4.75V and 5.25V.
Characteristic
Supply current
Input sensitivity
0.65GHz to 2.8GHz
3.3GHz
Input impedance (series equivalent)
Pin Min
1
2, 3
Value
Typ
69
Max
85
175
400
Units
mA
mV
mV
Ω
pF
Conditions
V
CC
= 5V
RMS sinewave
measured in 50 ohm system.
See Figs. 3 & 4
Output Voltage with f
in
=1000MHz
Output Voltage with f
in
= 3GHz
NOTE: Devices must be used with a suitable heatsink to maintain chip temperature below 175°C when
operating at T
amb
>110°C.
500
400
VIN (mV RMS
INTO 50 OHMS)
300
200
100
2
,,
2, 3
50
2
0.8
6, 7
6, 7
1
0.4
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
SP8808
Advance Information
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Preliminary and Advance Data: Some data sheets carry the designation “Preliminary” or “Advance”. Preliminary Information represents the design objective for a device type in development
and may be revised without notice before the device reaches production. Advance Information is intended for design guidance purposes and refers to a device type in early production where
device characterisation is ongoing and information is still subject to change without notice. Current information on the status of Preliminary or Advance programs may be obtained from Mitel
Sales Offices, Representatives or Distributors.
Information relating to products and circuits (“Product”) furnished herein by Mitel Corporation or its subsidaries (“Mitel”) is believed to be reliable. However, Mitel assumes no liability for errors
that may appear in this document, or for liability otherwise arising from the application or use of any such information or Product or for any infringement of patents or other intellectual property
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Mitel Semiconductor is an ISO 9001 Registered Company
Copyright 1998 MITEL Corporation
All Rights Reserved
Printed in 1998
Publication No. DS2113 Issue No 7.2 June 1999 TECHNICAL DOCUMENTATION – NOT FOR RESALE.
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