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73M2901/5V
Advanced Single
Chip Modem
8
ELECTRICAL SPECIFICATIONS (continued)
RECEIVER (continued)
PARAMETER TEST CONDITION MIN NOM MAX UNITS
Input Impedance RXA 150 --- ---
kW
Receive Gain
Boost
SFR 96h bit 2 (Rxgain) = 1 2.7 3.0 3.3 dB
VREF=1.25V 0.587 Vpk Maximum Input
Level at RXA
VREF=2.25V 1.069 Vpk
Total Harmonic
Distortion (THD)
1kHz 450mV-pk on RXA
THD = 2
nd
and 3
rd
harmonic.
-70 -50 dB
DC CHARACTERISTICS
PARAMETER SYMBOL
CONDITION MIN NOM MAX UNIT
Input Low Voltage
(Except OSCIN,RESET)
VIL -0.5 0.2Vcc V
Input Low Voltage
OSCIN,RESET
VIL -0.5 0.2 Vcc V
Input High Voltage
(Except OSCIN,RESET)
VIH 0.5 Vcc Vcc + 0.5 V
Input High Voltage
OSCIN,RESET
VIH 0.7 Vcc Vcc + 0.5 V
Output Low Voltage
(Except OSCOUT)
VOL IOL = 4mA 0.45 V
Output Low Voltage
OSCOUT
VOLOSC IOL = 3.0mA 0.7 V
Output High Voltage
(Except OSCOUT)
VOH IOH = -4mA Vcc – 0.45 V
Output High Voltage
OSCOUT
VOHOSC IOH =-3.0mA Vcc – 0.9 V
Input Leakage Current
(Except OSCIN)
IIH Vss < Vin < Vcc 1
m A
Input Leakage Current
OSCIN
IIH Vss < Vin < Vcc 1 30
m A