TDK DVB-H-ISDB-T, HHM1591A2 User Manual
(1/2)
Multilayer Chip Baluns
For DVB-H/ISDB-T
HHM Series HHM1591A2
SHAPES AND DIMENSIONS
2.0± 0.15
654
+0.1
–0.2
123
0.25
0.65± 0.2 0.3± 0.2
0.2± 0.2 0.35± 0.2
CIRCUIT DIAGRAM
Unbalanced
input
50
Ω
0.95± 0.1
Dimensions in mm
564
Balanced
output
100Ω
1.25± 0.15
Terminal functions
1 Unbalanced port
2 GND or DC feed+ RF GND
3 Balanced port
4 Balanced port
5 GND
6 N.C.
Conformity to RoHS Directive
123
RECOMMENDED PC BOARD PATTERNS
0.2
0.8
0.8 0.6
0.7
0.3
654
123
0.3
This width is 50Ω.
Micro-strip line for 0.4mm thick
glass-epoxy substrate.
ø0.3 Through-hole
Dimensions in mm
ELECTRICAL CHARACTERISTICS
Unbalanced impedance 50Ω
Balanced impedance 100Ω
Frequency range 350 to 950MHz
Unbalanced port return loss 4.5dB min.
Phase imbalance at balanced port 180±20deg.
Amplitude imbalance at balanced port 0±2.0dB
Insertion loss 2.8dB max.
Temperature range
Packaging style and quantities 2000pieces/reel
Operating –40 to +85°C
Storage –40 to +85°C
• 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.
001-01 / 20080105 / e751_hhm1591a2.fm
FREQUENCY CHARACTERISTICS
Unbalance 50Ω/Balance 100Ω
RETURN LOSS
0
–5
)
1
–10
dB
(
–15
–20
–25
–30
Return loss
–35
–40
300 400 500 600 700 800 900 1000 1100 1200
2
Frequency(MHz
3
)
INSERTION LOSS
0.0
–0.5
)
–1.0
dB
–1.5
(
–2.0
–2.5
1
–3.0
–3.5
–4.0
Insertion loss
–4.5
–5.0
300 400 500 600 700 800 900 1000 1100 1200
2
Frequency(MHz
3
)
1: 350.0MHz
–6.73dB
2: 650.0MHz
–17.05dB
3: 950.0MHz
–12.20dB
1: 350.0MHz
–2.20dB
2: 650.0MHz
–0.92dB
3: 950.0MHz
–1.30dB
AMPLITUDE BALANCE
5
)
4
dB
3
(
2
1
0
–1
1
–2
–3
–4
Amplitude balance
–5
300 400 500 600 700 800 900 1000 1100 1200
2
Frequency(MHz
3
)
PHASE BALANCE
200
)
190
deg.
(
180
1
170
Phase balance
160
300 400 500 600 700 800 900 1000 1100 1200
2
Frequency(MHz
)
(2/2)
1: 350.0MHz
–0.43dB
2: 650.0MHz
0.19dB
3: 950.0MHz
0.61dB
1: 350.0MHz
178.43deg.
2: 650.0MHz
176.25deg.
3: 950.0MHz
174.96deg.
3
• All specifications are subject to change without notice.
001-01 / 20080105 / e751_hhm1591a2.fm
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