MxL201RF Datasheet PDF - MAXLINEAR


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MxL201RF
MAXLINEAR

Part Number MxL201RF
Description Digital Cable Tuner
Page 22 Pages

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MxL201RF
Digital Cable Tuner Reference Design
Version 5.2
August 27, 2010
Information contained in this document is Company Private to
MaxLinear Inc. and shall not be used, copied,
reproduced, or disclosed in whole or in part without the
written consent of MaxLinear.



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MxL201RF Reference Design
REV 5.2
Table of Contents
1. Introduction and Block Level Diagram .................................................................. 3
2. Recommended Power Supply Options.................................................................... 4
3. Reference schematics ................................................................................................ 7
4. Bill of Materials (BOM).......................................................................................... 10
5. PCB layout guidelines............................................................................................. 12
6. Physical Layout Example ....................................................................................... 17
7. Gerber Reference Information .............................................................................. 20
8. Revision History ...................................................................................................... 22
Page 2 of 22
MaxLinear Confidential
8/27/2010



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MxL201RF Reference Design
REV 5.2
1. Introduction and Block Level Diagram
This document introduces the reference design of the MxL201RF silicon
tuner. The MxL201RF is able to convert 44-1002 MHz RF input signal to IF
frequencies ranging from 4 to 44 MHz. The tuner allows programmable
channel bandwidths of 6, 7, or 8 MHz. The IC also supports various crystal
frequencies ranging from 16MHz to 50MHz. By default 48MHz crystal is used
to provide the optimal phase noise performance. The MxL201RF can be used
for standard digital cable applications (ITU-T J.83 Annexes A [DVB-C] and C
and B [US Cable], DOCSIS, and EURODOCSIS) as well as standard digital
terrestrial applications (DVB-T/H, ATSC, and DMB-T/H).
Vagc
Input
MxL201RF
Silicon Tuner
Digital Cable/
IF Digital Terrestrial MPEG TS
Demodulator
Output
Figure 1 – MxL201RF in single-tuner digital cable/terrestrial applications
Figure 1 shows MxL201RF operating in standard single-tuner digital
cable/terrestrial applications. The tuner can be configured to either low-IF or
high-IF output (low-IF is preferred for the optimal performance) with single
AGC control.
Page 3 of 22
MaxLinear Confidential
08/27/2010



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MxL201RF Reference Design
REV 5.2
2. Recommended Power Supply Options
The MxL201RF tuner can operate with either a single voltage supply (3.0-
3.6V) in standard mode as shown in Figure 2, or dual voltage supplies (3.0-
3.6V and 1.7-2.0V) in low-power mode, as shown in Figure 3. The MxL201RF
uses two on-chip linear regulators to provide 1.6 V supply and one on-chip
linear regulator to provide the 1.2 V supply.
Figure 2 – Power supply configuration diagram of standard-power mode
Page 4 of 22
MaxLinear Confidential
08/27/2010




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