ECL variable modulus divider
Description
SP8685
500MHz410/11
ADVANCE INFORMATION
DS3646-1·2
The SP8685 is an ECL variable modulus divider, with ECL10K compatible outputs.
It divides by 10 when either of the ECL control inputs, PE1 or PE2, is in the high state and by 11 when both are low (or open circuit).
FEATURES
s Divides by 10 or 11 s AC-Coupled Input (Internal Bias) s ECL Compatible Output
QUICK REFERENCE DATA
s Supply Voltage: 25·2V s Power Consumption: 300mW s Temperature Range:
255°C to 1125°C (A Grade) 230°C to 170°C (B Grade)
ABSOLUTE MAXIMUM RATINGS
Supply voltage Output current Storage temperature range Max.
junction temperature Max.
clock input voltage
28V
20mA
265°C to 1150°C 1175°C 2·5V p-p
NC 1 OUTPUT 2
NC 3
16 VCC 15 PE1
CONTROL INPUTS 14 PE2
OUTPUT 4
13 NC
SP8685
NC 5
12 CLOCK INPUT
NC 6
11 NC
NC 7
10 INTERNAL BIAS DECOUPLING
VEE 8
9 NC
Fig.
1 Pin connections - top view
DG16
ORDERING INFORMATION
SP8685 A DG SP8685 B DG SP8685 AC DG SP8685 NA 1C
VCC (0V) 16
15 PE1
14 PE2 CLOCK INPUT 12
D1 Q1 CK
D2 Q2 CK
D3 Q3 CK
D4 Q4 CK Q4
2 OUTPUT 4
OUTPUT
10
INTERNAL BIAS DECOUPLING
8 VEE
Fig.
2 Functional diagram
SP8685
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, the Electrical Characteristics are guaranteed over specified supply, frequency and temperature range
Supply voltage, VCC = 0V, VEE = 25·2V 6 0·25V Temperature, TAMB = 255°C to 1125°C (A Grade), 230°C to 170°C (B Grade)
Characteristic
Symbol
Value Min.
Max.
Units
Conditions
Notes
Maximum frequency (sinewave input) Minimum frequency (sinewave input) Power supply current Output high voltage Output low voltage PE input high voltage PE input low voltage Clock to output delay Set-up time Release time
fMAX fMIN IEE VOH VOL VINH VINL tp ts
tr
500
20·87 21·8 20·93
2 2
50 70 20·7 21·5
21·62 6
MHz MHz mA
V V V V ns ns ns
Input = 400-800mV p-p
Input = 400-800mV p-p
VEE = 25·2V VEE = 25·2V (25°C) VEE = 25·2V (25°C) VEE = 25·2V (25°C) VEE = 25·2V (25°C)
5 5 5
NOTES
1.
The temperature coefficients of...
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