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ABSOLUTE MAXIMUM RATINGS
Supply voltage, |VCC2VEE|
ECL output current
Storage temperature range
Max. junction temperature
TTL output voltage
Input voltage
Max. open collector current
8V
10mA
265°C to 1150°C
1175°C
112V
2·5V p-p
15mA
DS3647-1·2
The SP8690 and SP8691 are low power ECL variable
modulus dividers, with both ECL10K and TTL/CMOS compatible
outputs. They divide by the lower division ratio when either of
the ECL control inputs, PE1 or PE2, is in the high state and by
the higher ratio when both are low (or open circuit).
FEATURES
I ECL and TTL/CMOS Compatible Outputs
I AC-Coupled Input
I Control Inputs ECL Compatible
QUICK REFERENCE DATA
I Supply Voltage: 25·2V60·25V (ECL), 5V60·25V (TTL)
I Power Consumption: 70mW (Typ.)
I Temperature Range:
255°C to 1125°C (A Grade)
230°C to 170°C (B Grade)
Fig. 1 Pin connections - top view
DG16
CLOCK INPUT
NC
NC
NC
VEE
TTL/CMOS OUTPUT
NC
ECL OUTPUT
CLOCK INPUT
PE1
PE2
NC
VCC
NC
NC
ECL OUTPUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CONTROL INPUTS
SP8690
SP8691
SP8690 200MHz4
4
4
4
410/11
SP8691 200MHz4
4
4
4
48/9
ORDERING INFORMATION
SP8690 A DG
SP8690 B DG
SP8691 A DG
5962-87678 (SMD)
(SP8690)
Fig. 2 Functional diagram (SP8690)
VCC
D1
Q1
D2
Q2
D3
Q3
D4
Q4
PE1
PE2
CLOCK INPUT
CLOCK INPUT
TTL/CMOS
OUTPUT
ECL OUTPUT
Q4
VEE
2
3
1
16
5
12
11
8
9
ECL OUTPUT
ADVANCE INFORMATION
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