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(1/2)
Conformity to RoHS Directive
Multilayer Chip Baluns
For Bluetooth & 2.4GHz W-LAN
HHM Series HHM1521
SHAPES AND DIMENSIONS
6
2.0
±0.15
5 4
0.95
±0.1
1
0.65
2
±0.2
3
0.2
±0.2 0.35±0.2
0.3
±0.2
Terminal functions
1 Unbalanced port
2 GND or DC feed+ RF GND
3 Balanced port
4 Balanced port
5 GND
6 N.C.
Dimensions in mm
CIRCUIT DIAGRAM
Unbalanced input
50
Ω
1
6 5 4
2 3
Balanced output
200
Ω
RECOMMENDED PC BOARD PATTERNS
0.3
0.2
This width is 50
Ω.
Micro-strip line for 0.4mm thick glass-epoxy substrate.
6 5 4
1 2 3
0.7
0.3
ø0.3 Through-hole
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Unbalanced impedance
Balanced impedance
Frequency range
Unbalanced port return loss
Phase imbalance at balanced port
Amplitude imbalance at balanced port
Insertion loss
Temperature range
Operating
Storage
Packaging style and quantities
50
Ω
200 Ω
2400 to 2500MHz
10dB min.
180±10deg.
0±2.0dB
1.0dB max.
–40 to +85°C
–40 to +85°C
2000pieces/reel
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
• All specifications are subject to change without notice.
001-03 / 20080106 / e751_hhm1521.fm
FREQUENCY CHARACTERISTICS
Unbalance 50
Ω/Balance 200Ω
RETURN LOSS
0
–5
( dB –10
–15
–20
–25
1
2
–30
2100 2200 2300 2400 2500 2600 2700
Frequency(MHz)
1: 2400MHz
–13.08dB
2: 2500MHz
–14.96dB
INSERTION LOSS
( dB
0.0
–0.5
–1.0
–1.5
–2.0
–2.5
1 2
–3.0
–3.5
–4.0
–4.5
–5.0
2100 2200 2300 2400 2500 2600 2700
Frequency(MHz)
1: 2400MHz
–0.82dB
2: 2500MHz
–0.76dB
AMPLITUDE BALANCE
( dB
5
4
3
2
1
0
–1
–2
–3
–4
1 2
–5
2100 2200 2300 2400 2500 2600 2700
Frequency(MHz)
1: 2400MHz
–0.45dB
2: 2500MHz
–0.57dB
PHASE BALANCE
( deg.
205
200
195
190
185
180
175
170
165
160
1 2
155
2100 2200 2300 2400 2500 2600 2700
Frequency(MHz)
1: 2400MHz
180.7deg.
2: 2500MHz
181.3deg.
(2/2)
• All specifications are subject to change without notice.
001-03 / 20080106 / e751_hhm1521.fm
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