Datasheet SP8902, SP8902KG, SP8902MP1S, SP8902MP1T Datasheet (MITEL)

SP8902 (MP)

5GHZ

4 4

4 4

42 Fixed Modulus Divider

Preliminary Information

DS4375 Issue 1.4 September 1999

Ordering Information

SP8902/KG/MP1S (tubes)
SP8902/KG/MP1T (tape and reel)

The SP8902 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.

Features

● Very High Operating Speed

● Operation down to DC with Square Wave Input

● Silicon Technology for Low Phase Noise

(Typically better than 2140dBc/Hz at 1KHz)

● 5V Single Supply Operation

● Low Power Dissipation: 335mW (Typ.)

● Surface Mount Plastic Package

Absolute Maximum Ratings

Supply voltage, V

CC

Storage temperature
Maximum junction temperature
Prescaler input voltage
Operating temperature

6·5V

265°C to 1150°C

1150°C

2·5Vp-p

KG240°C to 185°C T

CASE

Figure 1 block diagram

42

400400

V

CC

V

REF

OUTPUT

V

CC

10mA

OUTPUT
OUTPUT

18

7

6

2

3

INPUT

INPUT

44

GND

2

SP8902

1

2

3

4

8

7

6

5

OUTPUT V

CC

OUTPUT

OUTPUT

GND

V

CC

INPUT

INPUT

GND

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, VCC = 4·75V to 5·25V

-

1·0

-

­440
700

-

215·0

Characteristic

RMS sinewave
fIN = 1GHz and 4.2GHz
fIN = 5GHz
fIN = 1GHz and 3GHz
fIN = 5.0GHz and 3.8GHz
Into 50Ω pullup resistor
fIN = 1GHz and 5GHz (see note 1 )

92

5·0
180
570

-

-

-

12·0

ConditionsPin

1, 8
2, 3
2, 3
2, 3
2, 3
2, 3
6, 7
6, 7

Supply current
Input frequency
Input sensitivity
Input sensitivity
Input overload
Input overload
Output voltage
Output power

Typ. Max.

Min.

Value

Units

mA

GHz
mVrms
mVrms
mVrms
mVrms

Vp-p

dBm

67

-

-

-

-

-

0·5

112

NOTE

1. Measured into 50Ω measuring instrument in parallel with 50Ω pullup resistor. See Figure 5.

800

600

400

200

V

IN

INTO 50Ω (mV RMS)

12 3 4 56 7

FREQUENCY (GHz)

OPERATING WINDOW

TESTED AS PER

TABLE OF

ELECTRICAL

CHARACTERISTICS

Figure3 Typical input sensitiviy (sinewave drive)

SP8902

3

SP8902

1

2

3

4

8

7

6

5

V

CC

15V

1n10n

1n

SIGNAL

GENERATOR

50 50

1n

1n

10n

50Ω MEASURING

INSTRUMENT

Figure 4 Typical application and test circuit

j2

j1

j0.5

j0.2

0

2j0.2

2j0.5

2j1

2j2

1

0.5

0.2

j5

2j5

2

5

0·3GHz

3GHz

5GHz

1GHz

Figure 5 Typical input impedance

SP8902

4

SP8902

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

L(f) [dBc/Hz]

10

100 1k 10k 100k

FREQUENCY (Hz)

Figure 6 Typical phase noise, input frequency = 3GHz

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