HHM2304C1 [TDK]
RF Transformer, 1710MHz Min, 1785MHz Max;
| 型号： | HHM2304C1 |
| 厂家： | 
TDK ELECTRONICS |
| 描述： | RF Transformer, 1710MHz Min, 1785MHz Max 变压器 |
| 文件： | 总2页 (文件大小：46K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
(1/2)
Conformity to RoHS Directive
Multilayer Chip Dual-Band Directional Couplers
For GSM/DCS-Tx
HHM Series HHM2304C1
SHAPES AND DIMENSIONS
2.0 0.15
2
0.95 0.2
1
7
3
8
4
Terminal functions
1
2
3
4
5
6
7
8
Band1 input port
GND
Band2 input port
50Ω termination
Band2 output port
GND
5
6
0.65 0.1
0.3 0.2
Band1 output port
Monitor output port
Dimensions in mm
0.2 0.2 0.35 0.1
CIRCUIT DIAGRAM
( )
IN 2
( )
IN 1
1
GND
2
3
Monitor
8 output
4
5
6
7
( )
OUT 2
( )
GND OUT 1
RECOMMENDED PC BOARD PATTERNS
0.3
ø0.3
ø0.3
0.3
Dimensions in mm
This width is 50Ω.
CPW for 0.6mm thick Teflon substrate.
• 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.
001-02 / 20100224 / e761_hhm2304c1.
(2/2)
ELECTRICAL CHARACTERISTICS
Band
1
2
System
GSM
DCS
Frequency range
Coupling factor
Insertion loss
(MHz)
(dB)
880 to 915
17.5 1.0
0.30
30
25
25
23
1.3
1710 to 1785
15.5 1.0
0.45
30
25
25
22
1.3
(dB)max.
(dB)min.
(dB)min.
(dB)min.
(dB)min.
max.
IN1-OUT2
IN2-OUT1
IN1-IN2
Isolation∗
IN-Load
VSWR
Operating
Storage
(°C)
(°C)
–40 to +85
–40 to +85
–40 to +85
–40 to +85
Temperature range
∗
Isolation between opposite bands is specified over the frequency ranges of both bands.
Isolation in-band is specified over the frequency of the band in frequency.
FREQUENCY CHARACTERISTICS
GSM900
DCS1800
COUPLING
COUPLING
–10
–10
–15
–20
–25
1: 1710MHz
–15.3dB
2: 1785MHz
–15.0dB
1: 880MHz
–17.6dB
2: 915MHz
–17.2dB
–15
1
2
2
1
–20
–25
–30
–30
800
1700
1750
1800
( )
Frequency MHz
1850
1900
850
900
950
1000
(
)
Frequency MHz
ISOLATION
ISOLATION
–20
–25
–30
–35
–40
–45
–20
–25
1: 880MHz
–28.8dB
2: 915MHz
–28.5dB
1: 1710MHz
–27.8dB
2: 1785MHz
–27.3dB
2
1
–30
2
1
–35
–40
–45
–50
800
–50
850
900
950
1000
1700
1750
1800
1850
1900
(
)
)
)
Frequency MHz
(
)
Frequency MHz
INSERTION LOSS
INSERTION LOSS
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1: 880MHz
–0.12dB
2: 915MHz
–0.13dB
1: 1710MHz
–0.19dB
2: 1785MHz
–0.20dB
1
2
–0.2
1
2
–0.4
–0.6
–0.8
–1.0
800
850
900
950
1000
1700
1750
1800
1850
1900
(
Frequency MHz
(
)
Frequency MHz
VSWR
VSWR
2.0
1.8
1.6
1.4
1.2
1.0
2.0
1.8
1.6
1.4
1.2
1.0
1: 880MHz
–33.2dB
2: 915MHz
–32.8dB
1: 1710MHz
–33.0dB
2: 1785MHz
–31.9dB
1
2
2
1
800
850
900
950
1000
1700
1750
1800
1850
1900
(
Frequency MHz
(
)
Frequency MHz
• All specifications are subject to change without notice.
001-02 / 20100224 / e761_hhm2304c1.
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