ml12511 Lansdale Semiconductor, Inc., ml12511 Datasheet - Page 6

• Manufacturer Part Number: ml12511
• Description: Mecl Pll Components Dual Modulus Prescaler.
• Manufacturer: Lansdale Semiconductor, Inc.

ML12509, ML12511, ML12513
Page 6 of 12
NOTES: 1. Test outputs of the device must be tested by sequencing through the truth table. All input, power supply and
Each MECL 10,000 series circuit has been designed to meet the dc specifications shown in the test table, after thermal equilibrium has been
established. The circuit is in a test socket or mounted on a printed circuit board and transverse air flow greater than 500 linear fpm is maintained.
Outputs are terminated through a 50 Ω resistor to –2.0 V. Test procedures are shown for only one gate. The other gates are tested in the same
manner.
2. In addition to meeting the output levels specified, the device must divide by 5 or 8 during this test. The clock
3. In addition to meeting the output levels specified, the device must divide by 6 or 9 during this test. The clock
Generator
ground voltages must be maintained between tests. The clock input is the waveform shown.
input is the waveform shown.
input is the waveform shown.
All Pulse Generators are EH 137 or equiv.
Pulse Generators 1, 2 and 4:
Pulse Generator 3:
Pulse
#4
PRF = 10 MHz
PW = 50% Duty Cycle
t + = t – = 2.0 ± 0.2 ns
PRF = 2.0 MHz
PW = 50% Duty Cycle
t + = t – = 5.0 ± 0.5 ns
Generator
Pulse
#1
A
MC10109 or equiv.
Generator
Pulse
#2
V in
100
50
Generator
Pulse
#3
V in
(Scope Channel A)
V in
100
50
All resistors are +1%.
All input and output cables to the scope are equal lengths of 50 Ω coaxial cable.
The 1950 Ω resistor at Pin 7 and the scope termination impedance constitute a 40 :1 attenuator probe.
C T = 15 pF = total parasitic capacitance which includes probe, wiring, and load capacitance.
Unused output connected to a 50 Ω resistor to ground.
V in
950
50
Figure 5. AC Test Circuit
www.lansdale.com
25 µF
50
13
12
11
10
15
14
9
5
4
0.1 µF
+
–
1
E1
E2
E3
E4
E5
C
V CC = 2.0 V
6
Trans–
MECL
MTTL
V BB
lator
to
16
8
V EE = –3.0 V
Q
Q
2
3
7
0.1 µF
V out (Scope Channel B)
LANSDALE Semiconductor, Inc.
V out
V EE = –3.0 V
Clock Input
V out
1950
C T
V IHmax
V ILmin
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