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CMX991 Datasheet(PDF) 6 Page - CML Microcircuits

Part No. CMX991
Description  Two-mode demodulator
Download  56 Pages
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Maker  CMLMICRO [CML Microcircuits]
Homepage  http://www.cmlmicro.com
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CMX991 Datasheet(HTML) 6 Page - CML Microcircuits

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RF Quadrature Transceiver / RF Quadrature Receiver
CMX991/CMX992
 2015 CML Microsystems Plc
6
D/991_992/20
1.1
History
Version
Changes
Date
20
 1S305 (typo) corrected to 1SV305; SMV1279 (typo) corrected to SMV1249
 Typo in note to section 4.5 corrected, ‘b1’ corrected to ‘b7’
 Information added on Rx dc offset variation with temperature (section 7.13)
Feb 2015
19
 Receiver IF section 1 dB Compression point changed to typical; measurement
method clarified (section 8.1.3.2).
 Half IF specification changed to reflect production test limit (section 8.1.3.2).
 JDV2S08S replaced with 1S305FCT in Table 14 as JDV diode is obsolete.
Oct 2012
18
 Various editorial corrections.
 Alternative diodes added in Table 11.
May 2012
17
 VCO N divider start-up issue when using an external VCO (section 4.5)
Feb 2012
16
 Clarification of gain and noise of IF stage in ‘Straight in’ case (section 7.7)
 Editorial changes for consistency of table header format
 Update of receiver gain partition (section 7.3.1)
Jun 2011
15
 Details of receiver gain switching added (Section 7.3.2)
 PLL frequency formula added (section 5.4.1)
 Phase noise formula typo corrected (M not N) (section 8.1.3.2 Note 94)
Mar 2011
14
 CMX991: Transmitter LO Leakage specification clarified and limits adjusted
 CMX991: Transmitter LO Image typical value updated
Dec 2010
13
 Transmitter I and Q channels shown in error causing a spectrum inversion in
Tx path. Pins TXQN and TXQP swapped (Table 1)
 Editorial error in Table 13 corrected.
Sep 2010
12
 Rx IMD minimum specification improved after evaluation of production test
fixture (section 8.1.3.2)
Jun 2010
11
 Redundant series capacitor deleted and separate capacitors shown for C3 in
Figure 7 and Table 5
 Extra information on Mixer Output Impedance added (section 7.6).
 Table 13 updated.
 Extra information added on IF gain measurement conditions in (section 7.7).
 Extra information added on Rx I/Q Filter, (section 7.10).
 Extra information added on Tx Filter, (section 7.12).
 Maximum limits added for ‘Total Current Consumption’ figures’, (Section
8.1.3.1)
 LO Leakage performance specification updated; clarification of Note 7 and 7a;
new Note 7b; reference corrected in Note 11; test frequency of 45MHz moved
from Note 17 to Note 10; Gain of I/Q Filter moved to overall IF Amplifier and
I/Q Demodulator table (Section 8.1.3.2).
Mar 2010
10
 PLL Phase noise specification corrected and definition added
 I/Q Bandwidth clarified in section 4.2.3.2.
Jan 2010
9
 VCO specification corrected. It should be 400MHz (max).
 dBV/V terminology clarified. It should be dB(V/V)
 Clarification of Rx 1st Mixer Input 3rd order Intercept Point measurement
 Correction to C5 in Figure 7, the circuit referenced in IIP3 measurement
Nov 2009
8
 Updated with further application information (e.g. IF VCO options).
July 2009
7
 Updated with enhanced application information.
May 2009
6
 Original published document for both the CMX991 and CMX992 devices.
Mar 2009
It is always recommended that you check for the latest product datasheet version from the CML website:
[www.cmlmicro.com].


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