Sonar Ranging IC

Sonar Ranging IC - PW 0268

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
Time Controlled Gain Amplifier	TCGain	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
Driving Current	Isink	Vol=0.7V-GND	-40	-20	-	mA
MCU Input Level	MCUVIH		2.5	-	-	V
MCU Input Level	MCUVIL		-	-	0.8	V
MCU Output Level	MCUVOH		-	-	1	Vcc
MCU Output Level	MCUVOL		0.2	-	-	Vcc
MCU Low Level Input Current	MCUIOL		-	-10	-20	mA
I_O Internal Pull Up Resistance	Rup		3.5	5	6.5	KΩ
(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
Max. Pin Input Voltage	Vimax	Others	-0.3		Vreg+0.3	V
Max. Input Current	Iimax	*	-10		10	mA

*To prevent latch up, the instantaneous input current should be no large than 100mA for each pins.