maxq7667 Maxim Integrated Products, Inc., maxq7667 Datasheet - Page 5

• Manufacturer Part Number: maxq7667
• Description: 16-bit, Risc, Microcontroller-based, Ultrasonic Distance-measuring System
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
(f
otherwise specified. Typical values are at T
BPF
Adjustable Frequency Range
Frequency Adjustment
Resolution
SUPPLY VOLTAGE SUPERVISORS
DVDD Reset Threshold
DVDD Interrupt Threshold
Minimum Reset and Interrupt
Threshold Difference
AVDD Interrupt Threshold
DVDDIO Interrupt Threshold
Supervisor Operating Range
Supervisor Hysteresis
RESET Release Delay
Power-Up Time
+5V LINEAR REGULATOR (DVDDIO, GATE5, Requires External Pass Transistor, see the Typical Application
Circuit/Functional Diagram)
Regulator Output Voltage
GATE5 Output High Voltage
GATE5 Output Low Voltage
GATE5 Output Resistance
Gain Bandwidth
Gain
GATE5 Slew Rate
Maximum Load Capacitance
+3.3V LINEAR REGULATOR (REG3P3)
REG3P3 Output Voltage
Load Current
Output Short-Circuit Current
DVDDIO
) = 50kHz, C
PARAMETER
= +5V, V
REFBG
AVDD
_______________________________________________________________________________________
= C
Ultrasonic Distance-Measuring System
= +3.3V; V
REF
= 1µF in parallel with 0.01µF, f
SYMBOL
16-Bit, RISC, Microcontroller-Based,
DVDD
= +2.5V, system clock (f
A
= +25°C.)
Using the RCTRM register
Asserts RESET if V
this threshold
Generates an interrupt if V
below this threshold
Generates an interrupt if V
below this threshold
Generates an interrupt if V
below this threshold
At DVDD
After V
threshold
Time from RESET is released to the
execution of the first instruction (serial
bootloader off)
At DVDDIO
I
I
I
DVDDIO to GATE5
DVDDIO to GATE5
Maximum capacitance on DVDDIO
when using an external pass transistor
REG3P3 shorted to AGND
SOURCE
SINK
SINK
= 500µA
= 0µA to 50µA
DVDD
= 0µA (no load)
rises above the reset
CONDITIONS
ADCCLK
DVDD
SYSCLK
falls below
DVDD
AVDD
DVDDIO
= 2MHz (SAR data rate = 125ksps), T
) = 16MHz, burst frequency (f
falls
falls
falls
V
DVDDIO
2.10
2.25
2.95
4.75
- 0.1
3.15
MIN
150
-40
4.5
1.5
1700
TYP
1.58
330
150
0.2
4.3
35
1
1
1
BURST
A
) = bandpass frequency
= T
MAX
2.25
2.38
3.15
4.75
2.75
5.25
3.45
+40
50
MIN
2
to T
MAX
UNITS
V/ms
kHz
V/V
mA
mA
mV
, unless
µs
µs
µF
%
%
%
Ω
V
V
V
V
V
V
V
V
V
5