MAX2550-MAX2553收发器Femtocell无线参考设计
摘要：MAX2550是完整的单芯片无线收发器，用于UMTS 1波段毫微微蜂窝(femtocell)应用。RD2550参考设计基于MAX2550和所有相关元件，设计并构建成极具竞争力的无线解决方案，支持基站收发信机(BTS)。工作频率范围：1920MHz至1980MHz (Rx)和2110MHz至2170MHz (Tx)。RD2550参考设计还支持周围宏蜂窝基站的下行信号检测，允许系统选择最佳的工作环境(功率、规范、频率、容量等)。综述
该设计中,MAX2550作为主要的射频(RF)收发器，配合必要的外部元件构成完整的射频前端。外部元件包括：功率放大器、双工器、TCXO和无源器件。Maxim随RD2550参考设计提供一套完整的文件包，其中包括符合3GPP TS25.104家庭基站标准的测试报告。除RD2550外，我们还提供RD2551、RD2552、RD2553参考设计，分别基于MAX2551、MAX2552和MAX2553收发器构建，覆盖其它频带和标准。总之，您可以从Maxim获得高集成的单芯片毫微微蜂窝收发器，覆盖WCDMA 1-6波段和8-10波段，以及cdma2000 波段0、1和10。
RD2550参考设计性能测试结果
上行链路
说明
规格
Maxim射频器件性能
频率带宽
1920MHz to 1980MHz
Band 1
Rx灵敏度
-107dBm
Exceeds
ACS
-101dBm
Exceeds
阻塞(1900MHz - 2000MHz)
-101dBm
Exceeds
阻塞(1MHz - 12,750MHz，1900MHz - 2000MHz除外)
-101dBm
Exceeds
互调
-101dBm
Exceeds
下行链路
说明
规格
测试性能
频率带宽
2110MHz to 2170MHz
Band 1
最大输出功率
Less than +24dBm
外部PA
ACLR
-45dB/-50dB
Exceeds
误差向量幅度
17.5%/12.5%
Exceeds
BOM
数量
数值
说明
元件标号
型号
制造商
电容
1
14
1000pF
0402 Capacitor
C1, C13, C15, C19, C28, C86, C87-90, C190, C196, C204, C216
GRM155R71H102K
Murata
2
6
100nF
0402 Capacitor
C10, C12, C22, C33, C54, C77
GRM155R61A104K
Murata
3
1
47?F
1206 Capacitor
C34
GRM32ER61C476K
Murata
4
7
1.0?F
0402 Capacitor
C16, C46, C85, C91, C92, C126, 205
GRM155R60J105K
Murata
5
1
10?F
1206 Capacitor
C32
GRM31CR60J106K
Murata
6
4
2.2?F
0603 Capacitor
C17, C38, C55, C79
GRM21BR60J225K
Murata
7
6
10nF
0402 Capacitor
C5, C26, C37, C57, C67, C123
GRM155R71E103K
Murata
8
12
100pF
0402 Capacitor
C2, C3, C4, C8, C18, C23, C24, C51, C83, C217, C193, C214
GRM1555C1H101J
Murata
9
4
0.47?F
0402 Capacitor
C27, C58, C213, C215
GRM155R71C474K
Murata
10
4
82pF
0402 Capacitor
C41, C50, C69, C81
GRM1555C1H820J
Murata
11
1
2.7pF
0402 high Q Capacitor
C25
Johanson
12
1
2.4pF
0402 high Q Capacitor
C29
Johanson
13
1
1.0pF
0402 Capacitor
C56
GRM1555C1H1R0B
Murata
14
1
68pF
0402 Capacitor
C94
GRM1555C1H680J
Murata
15
2
3.3nF
0402 Capacitor
C45, C197
GRM155R71E332K
Murata
16
1
22pF
0402 Capacitor
C35
GRM1555C1H220J
Murata
17
2
68nF
0402 Capacitor
C43, C198
GRM155R71E683K
Murata
18
1
33pF
0402 Capacitor
C65
GRM1555C1H330J
Murata
19
1
1.3nH
0402 Capacitor
C39
LQG15HN1N3S02
Murata
20
0
Open
0402 Capacitor
C7, C9, C20, C21, C31, C40, C42, C49, C52, C53, C59, C47, C48, C60, C68, C70, C72, C80, C82
Open
21
1
5.1nH
0402 Inductor
C36
LQG15HN5N1S02
Murata
22
1
9.1nH
0402 Inductor
C14
LQG15HN9N1J02
Murata
23
1
4.3nH
0402 Inductor
C11
LQG15HN4N3S02
Murata
24
2
4.7?F
0805 Capacitor
C6, C30
GRM21BR60J475K
Murata
25
4
2.2?F
0603 Capacitor
C17, C38, C55, C79
GRM21BR60J225K
Murata
26
1
200mA
0603 Ferrite Bead
L2
BLM18HK471SN1
Murata
27
3
400mA
0603 Ferrite Bead
L14, L22, L24
BLM18PG330SN1
Murata
电阻
28
14
0
0402 Resistor
R2, R8, R9, R33, R36, R37, R41-44, R47-49, R55
29
1
4.7K
0402 Resistor
R10
30
1
430
0402 Resistor
R18
31
1
10
0402 Resistor
R22
32
2
220
0402 Resistor
R23, R115
33
1
270
0402 Resistor
R27
34
1
1K
0402 Resistor
R45
35
1
50
0402 Resistor
R28
36
0
Open
0402 Resistor
R1, R3, R5-7, R11-17, R19-21, R24-26, R29-32, R34, R35, R38-40, R46, R50, R51, R52, R53, R54, R310, R311
37
1
100
0402 Resistor
R4
电感
38
3
5.6nH
0402 Inductor
L9, L10, L23
LQG15HN5N6S02
Murata
39
1
1nH
0402 Inductor
L25
LQG15HN1N0S02
Murata
40
1
4.3nH
0402 Inductor
L13
LQG15HN4N3S02
Murata
41
5
0Ω
0402 Resistor
L3, L17-20
42
0
OPEN
0402 Inductor
L1, L4, L5, L6-8, L11, L12, L15, L21, L16
OPEN
43
1
OPEN
NPN Transistor
Q301
2SC4617
ROHM
IC和连接器
44
1
Dual SAW
EGSM/DCS RF SAW
FL3
LX14
EPCOS
45
1
RX SAW
2140MHz
FL5
B9451
EPCOS
46
1
TX SAW
1950MHz RF SAW
FL8
B9414
EPCOS
47
1
Duplexer
Band1 Fbar Duplexer
FL4
ACMD7614
Avago
48
1
LOW POWER LINEAR AMPLIFIER
U2
RMX2550M
Richwave
49
1
Low Noise Low Dropout Linear
U14
MAX8510EXK33
Maxim
50
0
OPEN
QUAD LVDS
U4
MAX9173EUE
Maxim
51
1
5 Band UMTS Transmitter
U1
MAX2550
Maxim
52
1
Low Noise Low Dropout Linear
U3, U5
MAX8887EZK33
Maxim
53
1
100 Pin Connector
J3
QSS-050-01-F-D-A-K
SAMTEC
54
1
RF Switch, SP2T
SW1
UPG2009
NEC
55
1
19.2MHz
TCXO 19.2MHz
Y1
M0101-T-002-3
Taitien
56
0
OPEN
Single pull 3 throw switch
SW2
XM0825SF-TL1301
Murata
57
3
Connector
SMA Connector
J1, J6, J7
142-0711-846
Johanson
58
1
Test point Red
VCC
J4
5000
Keystone
59
1
Test point Black
GND
J5
5001
Keystone
实物展示
原理图一
原理图二
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