Sonar Ranging IC - PW 0268
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Specifications:
Unless otherwise specified,all data measured under Vcc = 10V, F = 40KHz
Parameter Symbol Condition Min. Typ. Max. Unit
Supply Voltage Vcc Vreg = 5V (1) 7 12 V
Supply Current Icc Vcc = 7 ~ 12V 10 16.5 22 mA
Regulated Voltage Vreg Vcc = 7 ~ 12V 4.6 5 5.4 V
Reference Voltage Vref Vcc = 7 ~12V
RL>2KΩ
2.2 2.4 2.6 V
Op-Amp Slew Rate SR Vin = 3Vpp 5 - - V/μS
Comparator Trigger Level Tcomp Over Vref 300 350 400 mV
System Clock Frequency CLKf R=39KΩ C=22pF 610 660 710 KHz
System Clock Frequency Range CLKr 0.001 - 1500 KHz
Ultrasonic Oscillation Frequency Foscf R=3.9K C=2200pF 38 40 42 KHz
Ultrasonic Oscillation Frequency Range Foscr 0.001 - 500 KHz
2 nd Amp Gain GR 29 30 31 dB
Time Controlled Gain Amplifier TCGain Min(1x, 0dB) -1 0 1 dB
Max(58x, 35.2dB) 34 35 36 dB
Bandwidth of 2nd Amp GRbw Gain = 30dB   250 350 KHz
Driving Current Idrv Voh=Vreg-0.7V - 20 40 mA
Isink Vol=0.7V-GND -40 -20 -
MCU Input Level MCUVIH 2.5 - - V
MCUVIL - - 0.8
MCU Output Level MCUVOH - - 1 Vcc
MCUVOL 0.2 - -
MCU Low Level Input Current MCUIOL - -10 -20 mA
I_O Internal Pull Up Resistance Rup 3.5 5 6.5

(1)When VCC = 6V, Vreg only guarantee greater than 4V, other functions are not affected.

 

Absolute Maximum Ratings
Description Symbol Condition Min. Max. Unit
Supply Voltage Vcc 0 15 V
Operation Temperature Topr -40 85
Storage Temperature Tstg -65 150
Max. Pin Input Voltage Vimax I_O , Vcc -0.3 Vcc+0.3 V
Others -0.3 Vreg+0.3
Max. Input Current Iimax * -10 10 mA
*To prevent latch up, the instantaneous input current should be no large than 100mA for each pins.

Description | Block Diagram | Specification | Download | Back | Home