View SL1914AKG_1028939.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Preliminary Information
SL1914 SL1914
Satellite Tuner Front End LNA with AGC Preliminary Information
DS5137 ISSUE 1.6 April 1999
Features
q
q q q q q
Single chip solution for satellite tuner LNA and AGC Provides for 30 dB minimum AGC Low DSB NF at maximum gain High signal handling at minimum gain Provides differential output drive ESD protection (Normal ESD handling procedures should be observed)
Ordering Information
SL1914A/KG/MP1S SL1914A/KG/MP1T
Description
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. The SL1914 is optimised to complement the SL1925, 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.
Applications
q q q
Satellite receiver systems Data communications systems Master Antennae Distribution Systems
6 RF INPUT 2 5
OUTPUT OUTPUTB
AGC
4
1 8 3
Vcca Vccb Vee
Figure 1 Block Diagram
1
SP1914
Preliminary Information
Vcca RFIP
Vccb N/C
8 SPOT REF.
Vee AGC
OP OPB
MP8
Figure 2 Pin Connections
Quick Reference Data Characteristic
Operating frequency Input DSB NF at max gain Maximum conversion gain Minimum conversion gain IPIP32T IPIP22T Table 1 950 - 2150 9 20 -10 117 127
Units
MHz dB dB dB dBV dBV
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 Tamb= -20 C to +70 C, Vee = 0V, Vcc = 5V5%, These characteristics are guaranteed by either production test or design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Characteristic
Pin
Min
Value
Typ 110 950 75 8 9 11 -1 Max 150 2150
Units
Conditions
Supply current Operating range Input impedance IF input return loss Input DSB NF Variation in NF with gain setting Conversion gain minimum maximum Gain variation within channel Input referred 1 dB gain compression Input referred IP3 Input referred IP2 Variation in second and third order intermodulation intercept points with gain setting AGC control slope variation AGC control input current Output impedance Output return loss
1, 8 2 2 2
mA MHz dB dB dB/dB
AGC = 4V
Maximum gain, AGC = 0.75V
-10 21 +0.5
dB dB dB dB
2 2 2
107 117 125 -1
dBV dBV dBV dB/dB
Differential power gain into 75 Vagc = 4V See note 1. Vagc = 0.75V AGC monotonic from Vee to Vcc Maximum channel bandwidth of 54MHz, within range 950 2150MHz Minimum specified gain setting Minimum specified gain setting, two tones at 99dBV Minimum specified gain setting, two tones at 99dBV
4 4 5, 6 5, 6
4:1 350 75 6 A dB
Note 1: The AGC voltage should not exceed 4V.
3
SP1914
Preliminary Information
Absolute Maximum Ratings
All voltages referred to Vee at 0V. Characteristics Supply voltage 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 Package thermal resistance, chip to ambient Power consumption at 5.25V ESD protection Min -0.3 -0.3 -0.3 -55 Max 7 117 VCC+0.3 4 150 150 39.8 120 790 2 Unit V dBV V V C C C/W C/W mW kV Conditions Transient condition only Except AGC (pin 4)
Mil std-883 latest revision method 3015 class 1
Marker 1 2 3 4
Freq (MHz) 950 1250 1550 2150
Z real 77 80 44 29
Z imag -6 -34 -44 -35
+j1 +j0.5 +j2
+j0.2
+j5
0
0.2
0.5
1
2 1
2
5 X
3
4
-j0.2 -j5
START 950.000 000MHz NORMALISED TO 50
-j0.5 -j1
-j2
STOP 2 150.000 000 MHz
Figure 3 Input impedance (typical)
4
Preliminary Information
Marker 1 2 3 4 Freq (MHz) 950 1250 1550 2150 Z real 34 35 58 84
SL1914
Z imag -16 2 68 -30
+j1 +j0.5 +j2
+j0.2
+j5
0
0.2
0.5
1
2
5
1 2
-j0.2
-j5
4 3
START 950.000 000MHz NORMALISED TO 50
-j0.5 -j1
-j2
STOP 2 150.000 000 MHz
Figure 4 Output impedance (typical)
5
SP1914
Preliminary Information
RF Input
RF Input (pin 2)
VREF
1K AGC Control 5K
AGC Input (pin 4)
RF outputs (pins 5, 6) Figure 6 Input/Output interface circuit
6
Preliminary Information
SL1914
25
20
15
10
Single Ended Gain (dB)
5
0
-5
-10
-15
-20
-25 1 1.25 1.5 1.75 2 2.25 2.5 AGC Voltage (v) 2.75 3 3.25 3.5 3.75 4
Figure 5 gain variation with AGC voltage (typical)
7
For more information about all Zarlink products visit our Web Site at
www.zarlink.com
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively "Zarlink") is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink.
This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or 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 any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink's conditions of sale which are available on request.
Purchase of Zarlink's I2C components conveys a licence under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.
TECHNICAL DOCUMENTATION - NOT FOR RESALE

▲Up To Search▲

Price & Availability of SL1914AKG

	To Download SL1914AKG Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .