2
SP8690/SP8691
Fig. 3 Functional diagram (SP8691)
Characteristic
Maximum frequency (sinewave input)
Minimum frequency (sinewave input)
Power supply current
ECL output high voltage
ECL output low voltage
PE input high voltage
PE input low voltage
Clock to ECL output delay
Set-up time
Release time
Symbol
fMAX
fMIN
IEE
VOH
VOL
VINH
VINL
tp
ts
tr
200
20·85
21·8
20·93
3
8
Min.
Max.
40
21
20·7
21·5
21·62
9
Units
Input = 400-800mV p-p
Input = 400-800mV p-p
VEE = 25·0V
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
VEE = 25·2V (25°C)
Conditions
Notes
MHz
MHz
mA
V
V
V
V
ns
ns
ns
5
5
5
6
3, 6
4, 6
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, the Electrical Characteristics are guaranteed over specified supply, frequency and temperature range
ECL OPERATION
Supply voltage, VCC = 0V, VEE = 25·2V 6 0·25V
Temperature, T
AMB = 255°C to 1125°C (A Grade), 230°C to 170°C (B Grade)
NOTES
1. The temperature coefficients of VOH = 11·63mV/°C, VOL = 10·94mV/°C and of VIN = 11·22mV/°C.
2. The test configuration for dynamic testing is shown in Fig.8
3. The set-up time ts is defined as the minimum time that can elapse between L→H transition of control input and the next L→H clock pulse transition
to ensure that division by the lower modulus is obtained.
4. The release time tr is defined as the minimum time that can elapse between H→L transition of control input and the next L→H clock pulse transition
to ensure that division by the higher modulus is obtained.
5. SP8690/1B tested at 25
°C only.
6. Guaranteed but not tested.
7. The open collector output is not recommended for use at output frequencies above 15MHz. CLOAD ≤ 5pF.
Characteristic
Maximum frequency (sinewave input)
Minimum frequency (sinewave input)
Power supply current
TTL output low voltage
TTL output high voltage
Clock to TTL output high delay,1ve going
Clock to TTL output low delay,2ve going
Set-up time
Release time
Symbol
fMAX
fMIN
IEE
VOL
VOH
tPLH
tPHL
ts
tr
200
3·75
3
8
Min.
Max.
40
21
0·5
32
18
Units
Input = 400-800mV p-p
Input = 400-800mV p-p
VCC = 5·0V
VCC = 5V, RL = 560Ω
RL = 560Ω
RL = 560Ω
RL = 560Ω
Conditions
Notes
MHz
MHz
mA
V
V
ns
ns
ns
ns
5
5
5
5, 7
5, 7
6
6
3, 6
4, 6
TTL OPERATION
Supply voltage, VCC = 5V 6 0·25V, VEE = 0V
Temperature, T
AMB = 255°C to 1125°C (A Grade), 230°C to 170°C (B Grade)
Value
Value
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
Q2
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