SP8910 (MP)
5GHZ
4
Fixed Modulus Divider
410
Preliminary Information
DS4360 Issue 1.3 September 1999
The SP8910 is one of a range of very high speed low
power prescalers for professional applications. The dividing
elements are static D type flip flops and therefore allow
operation down to DC if the drive signal is a pulse waveform
with fast risetime. The output stage has internal100 ohm
pull up resistors, giving a 0·5V p-p output. If required, an
external 100 ohm can be connected in parallel to give a
50 ohm output.
Ordering Information
SP8910/KG/MP1S (tubes)
SP8910/KG/MP1T (tape and reel)
Features
G
Very High Operating Speed
G
Operation down to DC with Square Wave Input
G
Silicon Technology for Low Phase Noise
Absolute Maximum Ratings
Supply voltage, V
CC
6·5V
Storage temperature
265°C
to
1150°C
Maximum junction temperature
1150°C
Prescaler input voltage
2·5Vp-p
Operating temperature
KG240°C to
185°C
T
CASE
(Typically better than
2140dBc/Hz
at 1KHz)
G
5V Single Supply Operation
G
Low Power Dissipation: 340mW (Typ.)
G
Surface Mount Plastic Package
V
CC
1
OUTPUT
V
CC
8
100
100
7
6
OUTPUT
OUTPUT
V
REF
4
5
400
INPUT
INPUT
2
3
4
2
5mA
400
4
4
GND
Figure 1 block diagram
SP8910
V
CC
INPUT
INPUT
GND
1
2
8
7
OUTPUT V
CC
OUTPUT
OUTPUT
GND
SP8910
3
4
6
5
MP8
Figure 2 Pin connections - top view
Electrical Characteristics
These characteristics are guaranteed by either production test or design over the following range of operating conditions
unless otherwise stated: T
AMB
=
240°C
to
185°C,
V
CC
= 4·75V to 5·25V
Value
Characteristic
Supply current
Input frequency
Input frequency
Input sensitivity
Input sensitivity
Input overload
Input overload
Output voltage
Output power
Pin
1, 8
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
6, 7
6, 7
Min.
-
1·0
1·0
-
-
440
700
-
218·0
Typ.
68
-
-
-
-
-
0·25
29·0
Max.
92
5·0
5·5
180
570
-
-
-
24·0
Units
mA
GHz
GHz
mVrms
mVrms
mVrms
mVrms
Vp-p
dBm
Conditions
RMS sinewave
RMS sinewave, T
CASE
=
255°C
to
185°C
f
IN
= 1GHz and 4.2GHz
f
IN
= 5GHz
f
IN
= 1GHz and 3GHz
f
IN
= 5.0GHz and 3.8GHz
Into 100Ω pullup resistor
f
IN
= 1GHz and 5GHz (see note 1 )
NOTE
1. Measured into 50Ω measuring instrument in parallel with 100Ω pullup resistor. See Figure 5.
800
V
IN
INTO 50Ω (mV RMS)
600
TESTED AS PER
TABLE OF
ELECTRICAL
CHARACTERISTICS
400
OPERATING WINDOW
200
1
2
3
4
5
6
7
FREQUENCY (GHz)
Figure3 Typical input sensitiviy (sinewave drive)
2
Talking
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