MAX2452 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX2452 Datasheet PDF : 8 Pages
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3V, Ultra-Low-Power
Quadrature Modulator
____________________________Typical Operating Characteristics (continued)
(VCC = LO_VCC = 3.0V, fOSC = 140MHz, ENABLE = 2.6V, fII = fQQ = 600kHz, RL (IF, IF) = 200kΩ differential, CL (IF, IF) < 5pF
differential, TA = +25°C, unless otherwise noted.)
MODULATOR OUTPUT SPECTRUM
0
-10
VII = 1.2Vp-p
VQQ = 1.2Vp-p
-20
-30
-40
-50
-60
69.0
69.4
70.0
(MHz)
70.6
71.0
_____________________Pin Description
PIN
1
2, 15
3
4
5
6
7
8
9
10
11
12
13
14
16
NAME
IF
GND
I
I
Q
Q
ENABLE
TANK
TANK
LO_GND
LO_VCC
PRE_OUT
N.C.
VCC
IF
FUNCTION
IF Inverting Output
Ground
Inphase Input
Inphase Inverting Input
Quadrature Input
Quadrature Inverting Input
Enable Control, active high
Local-Oscillator Resonant Tank
Input
Local-Oscillator Resonant Tank
Inverting Input
Local-Oscillator Ground
Local-Oscillator Supply
Local-Oscillator Divide-by-8
Prescaled Output
No Connect, no internal connection
to this pin
Modulator Supply
IF Output
4 _______________________________________________________________________________________
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