MC10E1652 ON Semiconductor, MC10E1652 Datasheet - Page 3

• Manufacturer Part Number: MC10E1652
• Description: DUAL ECL OUTPUT COMPARATOR WITH LATCH
• Manufacturer: ON Semiconductor

AC CHARACTERISTICS
1. The propagation delay is measured from the crosspoint of the input signal and the threshold value to the crosspoint of the Q and Q output signals.
2. t skew is the propagation delay skew between comparator A and comparator B for a particular part under identical input conditions.
3. Refer to Figure 4 and note that the input is at 850 mV ECL levels with the input threshold range between the 20% and 80% points. The delay
4. The slew rate is 0.25 V/NS for input rising edges.
5. The slew rate is 0.75 V/NS for input rising edges.
6. Refer to Figure 5 and note that the input is at 2.5 V TTL levels with the input threshold range between the 20% and 80% points. The delay is
7. The slew rate is 0.3 V/NS for input rising edges.
MC10E1652’s compare and latch features. When the signal
on the LEN pin is at a logic high level, the device is operating
in the “compare mode,” and the signal on the input arrives at
the output after a nominal propagation delay (t PHL , t PLH ). The
input signal must be asserted for a time, t s , prior to the
ECLinPS and ECLinPS Lite
DL140 — Rev 4
Symbol
t PLH
t PHL
t s
t h
t pw
t skew
T DE
T DL
t r
t f
The timing diagram (Figure 3) is presented to illustrate the
For propagation delay measurements the threshold level (V THR ) is centered about an 850 mV input logic swing with a slew rate of 0.75 V/NS.
There is an insignificant change in the propagation delay over the input common mode range.
is measured from the crosspoint of the input signal and the threshold value to the crosspoint of the Q and Q output signals.
measured from the crosspoint of the input signal and the threshold value to the crosspoint of the Q and Q output signals.
–0.8
–1.0
–1.2
–1.4
–1.6
–1.8
–20 –16 –12 –8
Propagation Delay to Output
V to Q
LEN to Q
Setup Time
V
Enable Hold Time
V
Minimum Pulse Width
LEN
Within Device Skew
Delay Dispersion
(ECL Levels)
Delay Dispersion
(TTL Levels)
Rise/Fall Times
20-80%
Figure 1. Typical Hysteresis Curve
Vin, DIFFERENTIAL INPUT VOLTAGE (mV)
Characteristic
HYSTERESIS
–4 Vref
(V EE = –5.2 V 5%; V CC = +5.0 V 5%)
4
8
Min
600
400
450
–50
400
225
APPLICATIONS INFORMATION
12
–250
16
0 C
Typ
750
575
300
325
15
20
Max
900
750
475
2–3
Min
625
400
450
–50
400
225
negative going transition on LEN and held for a time, t h , after
the LEN transition. After time t h , the latch is operating in the
“latch mode,” thus transitions on the input do not appear at
the output. The device continues to operate in the “latch
mode” until the latch is asserted once again. Moreover, the
LEN pulse must meet the minimum pulse width (t pw )
Figure 2. Hysteresis Programming Voltage
25 C
–250
Typ
775
575
300
100
350
100
325
15
60
40
30
20
10
0
–0.2
PROGRAMMING VOLTAGE (VOLTAGE ABOVE VEE)
25 C
T =
Max
–0.1
925
750
475
T = 0 C
0.0
–100
Min
700
500
550
400
250
0.1
85 C
–250
Typ
850
650
350
375
15
0.2
1050
Max
850
500
85 C
T =
0.3
0.4
Unit
ps
ps
ps
ps
ps
ps
ps
ps
MC10E1652
0.5
Condition
MOTOROLA
3, 4
3, 5
6, 7
5, 6
1
2