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| 型號(hào)： | MC13111 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Narrowband FM IF Receiver(窄頻帶FM IF 接收器) |
| 中文描述： | 窄帶調(diào)頻（窄頻帶調(diào)頻中頻接收器中頻接收機(jī)） |
| 文件頁(yè)數(shù)： | 3/3頁(yè) |
| 文件大?。?/td> | 56K |
| 代理商： | MC13111 |
MOTOROLA ANALOG IC APPLICATIONS INFORMATION
become a problem, it will be necessary to modify the external
VCO to increase the radial gain constant.
The transmit gain adjust range for the
MC13110A,B/13111A,B is from –9.0 dB to 10 dB, while the
MC13110/13111 range is from –15 dB to 16 dB. Since the
registers are compatible, this should not pose any significant
problems. The reduced range has proved to be adequate for
normal applications.
SECOND LOCAL OSCILLATOR
The second local oscillator of MC13110A,B/13111A,B
exhibits about 6.0 dB higher gain than that of the
MC13110/13111. This allows the user to specify higher
capacitance crystals. Additionally, the start up time for a
given crystal will usually be reduced by a factor of two or
more.
The
input/output
MC13110A,B/13111A,B second local oscillator is typically
2.9/2.7 pF, whereas the MC13110/13111 is 4.1/5.3 pF,
respectively. As a result, the second local oscillator
frequency for the MC13110A,B/13111A,B will be slightly
higher. It will probably be necessary to modify the external
load capacitors to re–align the frequency to its desired
center.
capacitance
of
the
OTHER PARAMETERS
The 12 dB SINAD receiver sensitivity of the
MC13110A,B/13111A,B has been improved about 3.0 dB.
The active mode maximum ICC has been decreased from
12 mA for the MC13110/13111 to 10.5 mA for the
MC13110A,B/13111A,B. The inactive mode maximum ICC
has also been decreased from 80 A for the MC13110/13111
to 30 A for the MC13110A,B/13111A,B.
The standby mode maximum ICC has been increased from
500
A for the MC13110/13111 to 560
MC13110A,B/13111A,B.
A for the
SUMMARY
Modifying existing MC13110/13111 designs to incorporate
the newer MC13110A,B/13111A,B will usually require only a
few minor changes in already existing external component
values. The possibility exists that minor changes may be
required to software, but this is unlikely. Most systems will
experience improved performance for battery life and range.
ACKNOWLEDGMENTS
I would like to thank the entire CT–0 Design Team for their
collection, analysis and presentation of the data, for without
these efforts this application note would not be possible.
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA/EUROPE/Locations Not Listed
: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447
JAPAN
: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141,
4–32–1 Nishi–Gotanda, Shagawa–ku, Tokyo, Japan. 03–5487–8488
Customer Focus Center: 1–800–521–6274
Mfax
: RMFAX0@email.sps.mot.com – TOUCHTONE 1–602–244–6609
Motorola Fax Back System
ASIA/PACIFIC
: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
– US & Canada ONLY 1–800–774–1848
– http://sps.motorola.com/mfax/
HOME PAGE
: http://motorola.com/sps/
AN1658/D
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