SP8908 (MP)
5GHZ
梅
8 Fixed Modulus Divider
Preliminary Information
DS4359
ISSUE 1.3
September 1999
The SP8908 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 a
differential current output and provides a direct drive into
a 50 ohm load.
Ordering Information
SP8908/KG/MP1S (tubes)
SP8908/KG/MP1T (tape and reel)
Features
鈥?Very High Operating Speed
鈥?Operation down to DC with Square Wave Input
鈥?Silicon Technology for Low Phase Noise
(Typically better than
2140dBc/Hz
at 1KHz)
鈥?5V Single Supply Operation
鈥?Low Power Dissipation: 360mW (Typ.)
鈥?Surface Mount Plastic Package
Absolute Maximum Ratings
Supply voltage, V
CC
6路5V
Storage temperature
265擄C
to
1150擄C
Maximum junction temperature
1150擄C
Prescaler input voltage
2路5Vp-p
Operating temperature
KG240擄C to
185擄C
T
CASE
OUTPUT
V
CC
V
CC
1
8
7
6
4
8
OUTPUT
OUTPUT
V
REF
400
INPUT
INPUT
2
3
400
10mA
4
4
GND
Figure 1 - Block Diagram