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EHFFD1619 1.8GHz 1:1 Balun
[Dimensions] Unit: mm
0.48 0.44 0.72 0.44
Dec. 6, `04
[Pin assignment]

(4)
(3)
1.6 +/- 0.1
No. 1 2 3 4
GND OUT2 OUT1 IN
0.4
2.4
(1)
3.2 +/- 0.1
(2)
[Equivalent circuit]
(4)IN (3)OUT1
0.65 +/- 0.1
(1)GND
(2)OUT2
[Characteristics] Ta=-30...+85degC
Item Frequency range Insertion loss Amplitude balance Phase balance Impedance Unbalance port VSWR Remark Condition Back to back 50/50 50/50 IN/OUT 50/50 DC bias must be 0V. Spec. 600-800 1.0 max 2.0 max 180+/-20 50/50 2.0 max Unit MHz dB dB deg ohm -
(Note) This product does not include a DC-cutting device. Application of a DC voltage betw een the Balance port and the Unbalance port may cause product deterioration or breakage.
[Test circuit diagram]
NETWORK ANALYZER S-PARAMETER TEST SET
Fig. 1
(3) GND
Fig. 2
Additional Resistor GND 56 ohm
GND (4)
(2) GND A B Item Insertion loss (IL) Loss 1 Loss 2 Phase 1 Phase 2 Unbalance port VSWR
(1) GND
(5)
Circuit Port A Fig. 2 (4) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1) Fig. 1 (1)
Port B 50 ohm Remark (5) for a device is (IL)/2. (2) (3) Amplitude balance (3) (2) = | Loss 1 - Loss 2 | (2) (3) Phase balance (3) (2) = | Phase 1 - Phase 2 | (2) (3)

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