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National Semiconductor Electronic Components Datasheet

MH0025 Datasheet

two phase MOS clock driver

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MH0025 pdf
Memory/Clock Drivers
MH0025/MH0025C two phase MOS clock driver
general description
features
The MH0025/MH0025C IS monolithic, low cost,
two phase MOS clock driver that IS designed to be
driven by TTUDTL line drivers or buffers such as
the DM932, DM8830, or DM7440. Two Input
coupll ng capacitors are used to perform the level
shift from TTUDTL to MOS logic levels. Optimum
performance In turn-off delay and fall time are
obtained when the output pulse IS logically con-
trolled by the Input. However, output pulse widths
may be set by selection of the Input capacitors
eliminating the need for tight Input pulse control.
• 8·lead TO·5 or 8·lead dual·ln·line package
• High Output Voltage SWlngs~up to 30V
• High Output Current Drive Capablllty~up to
1.5A
• Rep. Rate: 1.0 MHz into> 1000 pF
• Driven by DM932, DM8830, DM7440(SN7440i
• "Zero" QUiescent Power
connection diagrams
Metal Can Package
V'
Note: Pm 4 connected to case.
TOP VIEW
Order Number MH0025H or MH0025CH
See Package 11
typical application
Dual-I n-Llne Package
N.C 1
8 N.C.
INPUT A 2
V' J
1 OUTPUT A
6 v'
INPUT B 4
5 OUTPUT 8
TOP VIEW
Order Number MH0025CN
See Package 20
ac test circuit
Inplltwaveform
PRR=O.5MHz
Vp-p" 5.0V
1,"'tl5:10ns
Pulse width
A 1 O~s
B 200n8
*Ul,sselected high speed NPNsWitchmgtranslstor
3-28
timing diagram
VOUT 1
V'~ov
VOUT 2
~A Inpulpulsewldth
5V
V
>clllckpuise
IN
Width
• OV
B Inputpullrewldth ._. ~90% u----V~,.- 5V
:;t~OCkPuISil -::rl-ldON ~\'---_ _ _ _ OV
Cloc~pulse
output
IdON
10%
r-~OfF
10%
V3 -DV
!j1J% 50%
VOUT
~=-""':~'-j----- V2 '-15V


National Semiconductor Electronic Components Datasheet

MH0025 Datasheet

two phase MOS clock driver

No Preview Available !

MH0025 pdf
absolute maximum ratings
(v+ - v ) Voltage Differential
Input Current
Peak Output Current
Power Dissipation
Storage Temperature
Operating Temperature MH0025
MH0025C
Lead Temperature (Soldering, 10 sec)
30V
100mA
1.5A
See Curves
-65°C to +150°C
_55°C to +125°C
O°C to +85°C
300°C
electrical characteristics (Note 1) See test circuit.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
oo~:x:
N
CJ'I
"~
:oox:
N
nCJ'I
T doN
Tr,se
TdoFF (Note 2)
T fall (Note 2)
C 'N = .001 !IF
onR'N =
>-
C L = .001 !IF
T fall (Note 3)
P.w. (50% to 50%) (Note 3)
Positive Output Voltage Swing
-'
V ,N = OV, lOUT = -1 mA
Negative Output Voltage Swing liN = 10 mA, IOUT= 1 mA
60
100
V+ - 1.0
15 30
25 50
30 60
90 120
150
250
500
V+ - 0.7V
V-+ 0.7V V- + 1.5V
ns
ns
ns
ns
ns
ns
V
V
Note 1. MinIMax limits apply across the guaranteed operating temperature range of _55°C to +12SoC
for MH0025 and O'C to 85'C for MH0025C. TYPical values are for +2S'C.
Note 2. Parameter values apply for clock pulse width determined by Input pulse width.
Note 3. Parameter values apply for Input pulse width greater than output clock pulse width.
typical performance
Package Power Derating
~~
~
_.- MH0025H &MH0025CH STILL AIR
1.4 -
1.2
MH0025CN SOLDERED INTO PC
BOARD WITH 8 Cu CONDUCTORS
2 OZ..01 IN. WIDE
-~ 1.0
i'l"l 0.8
f 0.6
"!!i 0.4
x
~ 0.2
I'-
1', :'\
~
"-
0
-25 0 25 50 75 100 125 150
TEMPERATURE rCI
Transient Power vs Rep. Rate
400
CL-2001l~1 CL '151l0pF CL-IOOOpf
.~s 100
i'"ll
f
:':"'i
200
/1 J
Cl -150pF
VVV
I IlL /
~7
I / / V CL·J5()pF
ill
&"~ 100
~'"
r/ ./
~V I,,:::: ~ PC: ~2Gllpf
:;.. (P'"
V+-V-"'16V
0 5 10 15 20
PULSE REPETITION RATE (MHz)
PAC" IV+ - V-)2f CL
DC Power (PDC) vs Duty Cycle
160
140
I 120
z
:;C:>: 100
iZ 80
is
i'"ll
f
60
40
"C> 20
v' - V-=20V/
XI
/ / V ~?b
I/ X
/ / Vv'-)=I~V-
/ /'
L'l
iR
0 10 20 10 40 50 60 70 85
DUTY CYCLE (%1
(V' - y-j' (OCI
Poe = - - , , - -
Maximum Load Capacitance
1200
DC·M'.
I
ri~ 2800
2400
~ 2000
'"~ 1600
5 1200
gC>
800
400
MHlm5CN v _v-· 20V lA '2~ £
1\ '<, MHO(IZ5C v-v ~ ZOV l~ - 25 C
\i\. .{ r--..
~
l",
r-... ir-"-.'
t-...
..... i'.... i'"I-...:
MHIO!5C~V'_V-.'BVTA'IlI:?( F""' I""'"
0 MtllIOl.C V-·Y-·16V lA' 10 C
0.2 0.4 0.6 0.8 10 12 14 1.6 1.8 2.0
FREnUENCY (MH,I
C~ (PMAXI Uk) - (V+ - V-)2 (DC) -5: (lPk) (t,)
L ~ (f)(lk},(V+ _ V-)2
v+ _V-
Output P.W. Controlled by CIN
1100
900
:!
'":z: 700
CO
iii
~ 500
~
100
1 'f",'OO
DUTf'UTPUlSE WIDTH VS C,,, FOR tONG
IN'UT,ULSES
f-
r-+--FORINPut'UlSE
<&5+
AGC,..
In
~
1M,,.
OUTPUT PULSE WIDTH" INPUT PULSE WIDTH
f-
PLUSH",
1/
Jill ~RIV~R . . . .:1...
DRIVER
I>
V ;.or
L.-- 58!1'UllUP
~ III
200 600 1000 1400 1800 2200
CIN (pF)
IMAX " Peak turrent delivered by driver
IMIN ~ RVi'l1E = 106k
3-29


Part Number MH0025
Description two phase MOS clock driver
Maker National Semiconductor
Total Page 3 Pages
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