µPC1663
TEST CIRCUIT
50 Ω
1 000 pF
1
8
2
7
50 Ω
IN
0.1 µF
1 000 pF
ZS = 50 Ω
VCC–
3
6
VCC+
0.1µF
4
5
Remark Measurement value at
1 kΩ
0.1 µF 950 Ω OUT ZL =
OUT connector should
50 Ω
be converced into DUT’s
output value at pin 5.
Remark
Definition and test circuit of each characteristic should be referred to application note ‘Usage of
µPC1663 (Document No. G12290E)’.
NOTES ON CORRECT USE
(1) Observe precautions for handling because of electro-static sensitive devices.
(2) Form a ground pattern as wide as possible to minimize ground impedance (to prevent undesired
oscillation).
(3) The bypass capacitor should be attached to VCC line.
(4) When gain between Gain 1 and Gain 2 is necessary, insert adjustment resistor (0 to 10 kΩ) between
G1A and G1B to determine gain value.
(5) Due to high-frequency characteristics, the physical circuit layout is very critical. Supply voltage line
bypass, double-sided printed-circuit board, and wide-area ground line layout are necessary for stable
operation. Two signal resistors connected to both inputs and two load resistors connected to both
outputs should be balanced for stable operation.
VCC+
50 Ω
50 Ω
VCC–
(150 Ω to ∞)
(150 Ω to ∞)
Data Sheet G11024EJ6V0DS00
5