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U3770M Datasheet(PDF) 1 Page - TEMIC Semiconductors

No. de Pieza. U3770M
Descripción  CT2 I/Q Modulator and Clock Circuitry
Descarga  5 Pages
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Fabricante  TEMIC [TEMIC Semiconductors]
Página de inicio  http://www.temic.de
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U3770M Datasheet(HTML) 1 Page - TEMIC Semiconductors

   
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U3770M
MATRA MHS
Rev. A2, 03-Dec-97
1 (5)
CT2 I/Q Modulator and Clock Circuitry
Description
U3770M is a quadrature modulator realized with
MATRA MHS’ advanced 0.8 micron CMOS process.
The IC is especially designed for CT2 application
in conjunction with TEMIC’s RF/IF signal processor
U2760B
and
a
CT2
baseband
controller
(i.e., AMD PhoXTM controller Am79C4xx). Together
with TEMIC’s PLL IC U2783B and the GaAs front end
U7001BG, a complete CT2 chip set is available.
Electrostatic sensitive device.
Observe precautions for handling.
Features
D Programmable 0.8/1.6 MHz quadrature modulated
carrier generation
D More than 26 dB LO and sideband suppression
D 18.432 MHz CMOS level clock generation
D Supply voltage range 2.7 to 3.3 V
D Low power consumption, typical 12 mW
D SO16 package or die form
Block Diagram
Phase
comparator
DIV / 36
VCO
512 kHz
3.2 MHz
DIV / 25
DIV / 2
or
DIV / 4
Dual DFF
512 kHz
18.432 MHz
95 9881
RRef in 12.8 MHz
2
3
4
13
12
10
6
5
8
7
VDD
DGND
AGND
Qin
QBin
Iin
IBin
DNC
1, 15, 16
6.4 MHz
Amp.
11
LF
14
CLK out
9
MOD out
PROG
TST
Figure 1. Block diagram


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