
9-34
TO-8V Case Drawing
.50
DIA
.45
DIA
.20
0.22
MIN
.150
TYP
.300
TYP
GROUND
CASE
GROUND
V
.150
TYP
RF OUT
3
4
2
1
APPROXIMATE WEIGHT 1.7 GRAMS
+
.300
TYP
VTUNE
.017 +.002
–.001
GLASS RING
.060 DIA TYP
(3X)
NOTES (UNLESS OTHERWISE SPECIFIED):
1. DIMENSIONS ARE SPECIFIED IN INCHES
2. TOLERANCES: xx
±
.02
xxx
±
.010
Test Fixtures for
TO-8Packages
(TF 801/802)
Oscillators (VTO)
Features
DC to 11 GHz Frequency
Range
Connectorized Tuning Port
and RF Output
Easy to Test Package
Repeatable Performance
Applications
Engineering
Characterization
Incoming Inspection
System Prototype
Demonstration of Device
Performance
Description
To facilitate testing and
prototyping of products in the
TO-8V package, a series of test
fixtures is available. Designated
the HP TF Series test fixtures,
they feature rugged construction
for precise, repeatable
measurements.
The TF Series test fixtures come
supplied with mounting hardware
to ensure excellent ground
contact between the oscillator
package and test fixture. This
assures excellent contact between
package pins and test fixture
connector pins for reliable testing.
The device under test is aligned
according to Figure 13, and
pushed fully down onto the
fixture. The steel mounting ring
clamp is placed over the device
under test and secured by ma-
chine screws prior to testing.
Orientation of pins can be verified
by comparison with part (c) of
Figure 13. It is recommended that
both machine screws be used to
fasten the ring clamp. Screws
should be tightened down snugly
with a jewelers type screwdriver.
For different connector options
check the table in Figure 13 to
identify the correct part numbers.
It should be noted that some
output power variation may be
seen, from unit data, at frequen-
cies above 8 GHz. This is
due to small differences in lengths
of test fixture RF output
connector pins.