U3770M Datasheet, PDF (1/6 Pages) TEMIC Semiconductors – CT2 I/Q Modulator and Clock Circuitry

CT2 I/Q Modulator and Clock Circuitry
U3770M
Description
The U3770M is a quadrature modulator realized using
Atmel Wireless & Microcontrollers’ advanced 0.8 mi-
cron CMOS process. The IC is especially designed for
CT2 applications in conjunction with Atmel Wireless &
Microcontrollers’ RF/IF signal processor U2760B and a
CT2 baseband controller (i.e., AMD PhoX^TM controller
Am79C4xx). Together with Atmel Wireless &
Microcontrollers’ 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 V to 3.3 V
D Low power consumption, typically 12 mW
D SO16 package or die form
Block Diagram
R_{Ref in} 12.8 MHz
2
LF
11
DIV / 25
Phase
512 kHz ^comparator
VCO
95 9881
14 CLK out
VDD ³
DGND ⁴
AGND ¹³
PROG ¹²
TST ¹⁰
6
Q_in
5
QB_in
I_in ⁸
IB_in ⁷
1, 15, 16
DNC
Amp.
Ordering Information
Extended Type Number
U3770M-MFP
U3770M-MFPG3
512 kHz ^{DIV / 36} 18.432 MHz
DIV / 2
or
DIV / 4
6.4 MHz
Dual DFF
3.2 MHz
9 MOD out
Figure 1. Block diagram
Package
SO16
SO16
Remarks
Tube
Taped and reeled
Rev. A3, 07-Sep-00
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