SL1914 [MITEL]
Satellite Tuner Front End LNA with AGC; 卫星调谐器前端LNA ，带有AGC
| 型号： | SL1914 |
| 厂家： | 
MITEL NETWORKS CORPORATION |
| 描述： | Satellite Tuner Front End LNA with AGC |
| 文件： | 总6页 (文件大小：87K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
P
SL1914
Satellite Tuner Front End LNA with AGC
Preliminary Information
DS5137
Issue no 1.6
April 1999
Features
Ordering Information
●
Single chip solution for satellite tuner LNA and
AGC
SL1914A/KG/MP1S
SL1914A/KG/MP1T
●
●
●
Provides for 30 dB minimum AGC
Low DSB NF at maximum gain
High signal handling at minimum gain
Description
●
●
Provides differential output drive
ESD protection (Normal ESD handling
procedures should be observed)
The SL1914 is a wideband LNA with AGC designed
primarily for application in satellite tuner front ends,
offering high signal handling capability with low noise
figure compatible with most common tuner input
requirements.
Applications
●
●
●
Satellite receiver systems
TheSL1914isoptimisedtocomplementtheSL1925,ZIF
quadrature downconverter, integrating all the active RF
circuitry within the tuner, in a highly compact, efficient
solution, and offering a full 1-45 MS/s tuner capability.
Data communications systems
Master Antennae Distribution Systems
.
6
OUTPUT
2
RE INPUT
5
OUTPUTB
4
1
AGC
Vcca
8
Vccb
3
Vee
Figure 1 Block Diagram
1
SL1914
Preliminary Information
Vccb
N/C
Vcca
RFIP
Vee
OP
OPB
AGC
MP8
Figure 2 Pin Connections
Quick Reference Data
Characteristic
Units
MHz
dB
Operating frequency
Input DSB NF at max gain
Maximum conversion gain
Minimum conversion gain
IPIP32T
950 - 2150
8
20
dB
-10
117
127
dB
dBµV
dBµV
IPIP22T
Functional Description
The SL1914 is a bipolar, low noise AGC amplifier
designed primarily for application in satellite tuner front
ends. It contains a low noise input amplifier, an AGC
stage with a minimum of 30dB of gain control and a 75
Ohm output drive. It replaces all active circuitry in
conventional architectures.
The typical key performance numbers under nominal
load ambient and supply conditions are contained in
table headed Quick Reference Data.
.
2
Preliminary Information
Electrical Characteristics
SL1914
o
o
T
= -20 C to +70 C, V = 0V, Vcc = 5V±5%, These characteristics are guaranteed by either production test
amb ee
or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Characteristic
Pin
Value
Typ
Units
Conditions
Min
Max
Supply current
1, 8
110
75
7
150
mA
MHz
Ω
AGC = 4V
Operating range
Input impedance
IF input return loss
Input DSB NF
950
8
2150
2
2
2
dB
9
dB
Maximum gain, AGC = 1V
Variation in NF with gain
setting
-1
dB/dB
Conversion gain
minimum
Differential power gain into 75Ω
-10
dB
dB
dB
dB
Vagc = 4V
Vagc = 1V
See note 1.
maximum
21
AGC monotonic from Vee to Vcc
Maximum channel bandwidth of
Gain variation within
channel
+0.5
54MHz, within range 950 -
2150MHz
Input referred 1 dB gain
compression
2
2
2
107
117
125
dBµV Minimum specified gain setting
Input referred IP3
dBµV Minimum specified gain setting,
two tones at 99dBµV
Input referred IP2
dBµV Minimum specified gain setting,
two tones at 99dBµV
Variation in second and
third order intermodulation
intercept points with gain
setting
-1
dB/dB
AGC control slope
variation
4
4:1
AGC control input current
Output impedance
Output return loss
4
±350
µA
Ω
5, 6
5, 6
75
6
dB
Note 1: The AGC voltage should not exceed 4V.
3
SL1914
Preliminary Information
Absolute Maximum Ratings
All voltages referred to Vee at 0V.
Characteristics
Min
Max
Unit
Conditions
Supply voltage
-0.3
7
117
V
dBµV
V
IFIN and IFINB input voltage
All I/O port DC offset
AGC input DC offset
Storage temperature
Junction temperature
Package thermal resistance,
chip to case
Transient condition only
-0.3
-0.3
-55
VCC+0.3
4
Except AGC (pin 4)
V
150
°C
150
°C
39.8
°C/W
Package thermal resistance,
120
790
°C/W
chip to ambient
Power consumption at 5.25V
mW
kV
ESD protection
2
Mil std-883 latest revision
method 3015 class 1
4
http://www.mitelsemi.com
World Headquarters - Canada
Tel: +1 (613) 592 2122
Fax: +1 (613) 592 6909
North America
Tel: +1 (770) 486 0194
Fax: +1 (770) 631 8213
Asia/Pacific
Tel: +65 333 6193
Fax: +65 333 6192
Europe, Middle East,
and Africa (EMEA)
Tel: +44 (0) 1793 518528
Fax: +44 (0) 1793 518581
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data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in
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Copyright 1999 MITEL Corporation
All Rights Reserved
Printed in CANADA
TECHNICAL DOCUMENTATION - NOT FOR RESALE
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