Discontinued
Technical Data
SaRonix
Crystal Clock Oscillator
LOW EMI TTL
NRT Series
Frequency Range:
Frequency Stability:
1 MHz to 70 MHz
±25, ±50 or ±100 ppm over all conditions: calibration
tolerance, operating temperature, input voltage change,
load change, aging, shock and vibration.
Temperature Range:
Operating:
Storage:
Supply Voltage:
Recommended Operating:
Absolute Maximum:
Supply Current:
ACTUAL SIZE
0°C to +70°C
-55°C to +125°C
+5VDC ±10%
+7VDC
TTL
10 TTL Loads
typ / max
20 / 35mA
27 / 45mA
35 / 50mA
Description
A crystal controlled, low current TTL
oscillator providing precise rise and fall
times to drive HCMOS and NMOS mi-
croprocessors. Can drive up to 10 TTL
loads. Controlled rate of change in rise
and fall times reduces ringing and ground
bounce, and limits EMI to facilitate com-
pliance with FCC regulations. Provides
superior performance in circuits where
clock trace is greater than 2 inches. The
tri-state function enables the output to go
high impedance. Available in either a 14
or an 8 pin DIP compatible, resistance
welded, all metal case. Pin 7 (or Pin 4) is
grounded to case to reduce EMI.
Applications & Features
Clock 16 and 32 bit microprocessors
Perfect for portable computers
Tri-State output
Controlled rise and fall times
Best choice for clock traces over 2
inches in length
• TTL compatible
• Available up to 70 MHz
• Grounded, all metal case
•
•
•
•
•
Frequency: to 30 MHz
30+ to 50 MHz
50+ to 70 MHz
Output Drive:
TTL
Load:
Symmetry:
Logic 0:
Logic 1:
Rise Time:
Fall Time:
10 TTL loads
50% ±5% @ 1.5V
0.5V max
2.5V min
6ns typ, 8ns max, 0.5 to 2.5V
6ns typ, 8ns max, 2.5 to 0.5V
Mechanical:
Shock:
Solderability:
Terminal Strength:
Vibration:
Solvent Resistance:
Resistance to
Soldering Heat:
Environmental:
Gross Leak Test:
Fine Leak Test:
Thermal Shock:
Humidity:
MIL-STD-883,
MIL-STD-883,
MIL-STD-202,
MIL-STD-883,
MIL-STD-202,
Method 2002, Condition B
Method 2003
Method 211, Conditions A and C
Method 2007, Condition A
Method 215
MIL-STD-202, Method 210, Condition B
MIL-STD-883, Method
MIL-STD-883, Method
<5 x 10
-8
ATM cc/sec
MIL-STD-883, Method
MIL-STD-883, Method
1014, Condition C
1014, Condition A2
1011, Condition A
1004
DS-106
REV
B
SaRonix
141 Jefferson Dr • Menlo Park, CA 94025 • USA • 650-470-7700 • 800-227-8974 • Fax 650-462-9894
Discontinued
Technical Data
Package Details
FULL SIZE PACKAGE
0.86
.034
Max
20.30
Max
.800
5.08
Max
.200
.46±.08
.018±.003
15.24±.13
.600±.005
Pin 1
(Tri-State
Control)
12.19±.13
.480±.005
Pin 7
(GND)
6.3±1.0
.248±.039
SaRonix
Crystal Clock Oscillator
LOW EMI TTL
NRT Series
Part Numbering Guide
NRT 070 C
Type
Model
040 = 1 ~ 4 MHz, full size
050 = 4 ~ 20 MHz, full size
070 = 20 MHz up, full size
049 = 1 ~ 4 MHz, half size
059 = 4 ~ 20 MHz, half size
079 = 20 MHz up, half size
Example PN: NRT070B - 50.0000
- 40.0000
Frequency
Pin 1 Disable
N = No Tri-state control
on pin 1
Stability Tolerance
A = ±25 ppm (0.0025%)
B = ±50 ppm (0.005%)
C = ±100 ppm (0.01%)
4.57±.13
.180±.005
12.70
Max
.500
Output Waveform
Pin 14
(+5 VDC)
(4) Glass
Insulators
7.62±.13
.300±.005
Pin 8
(Output)
V
DD
TTL
T
r
T
f
Tri-State Logic Table
Standard Marking Format
Pin 1 Input
Logic "1" or NC
Pin 8 (5) Output
Oscillation
High Impedance
SARONIX
XTAL OSC
Date Code
Frequency
Type, Model,
Stability
2.5 VDC
1.5 VDC
0.5 VDC
GND
SYMMETRY
Logic "0" or GND
Denotes Pin 1
Required Input Levels on Pin 1:
Logic "1" = 2.5V min
Logic "0" = 0.5V max
HALF SIZE PACKAGE
12.5±0.1
.492±.004
10.8±0.1
.425±.004
1.0
Max
.039
5.08
Max
.200
6.35±0.35
.250±.014
7.62±.10
.300±.004
Pin 4
(GND)
Test Circuit
.46±.076
.018±.003
Pin 1
(Tri-State)
1.5
.059
12.5±0.1
.492±.004
mA
M
TEST
POINT
Pin 14 (8)
V
CC
Pin 8 (5)
OUT
C
L
= 15pF
(Note A)
R
L
= 390Ω
POWER
SUPPLY
VM
Pin 1 (1)
*
OSCILLATOR
GND
Pin 7 (4)
MMBD7000
or Equiv.
120°
120°
120°
7.62±.10
.300±.004
TRI-STATE INPUT
Pin 8
(V
DD
)
1.7
.067
6.0
.236
Pin 5
(Output)
NOTE A: C
L
includes probe and fixture capacitance
*( ) Indicates pin numbers for half-size package
TTL TEST CIRCUIT
Standard Marking Format
SARONIX
Frequency
Type, Model,
Stability
Date Code
Denotes Pin 1
All specifications are subject to change without notice.
Scale: None (Dimensions in
mm
inches
)
DS-106
REV
B
SaRonix
141 Jefferson Dr • Menlo Park, CA 94025 • USA • 650-470-7700 • 800-227-8974 • Fax 650-462-9894
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