MCP2036-I/P Microchip Technology, MCP2036-I/P Datasheet - Page 5

• Manufacturer Part Number: MCP2036-I/P
• Description: IC KEYLESS ENTRY AFE 14-PDIP
• Manufacturer: Microchip Technology
• Type: Sensor Interfacer

Specifications of MCP2036-I/P

• Package / Case: 14-DIP (0.300", 7.62mm)
• Applications: Analog I/O
• Mounting Type: Through Hole
• Product: Analog Front End
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Supply Current: 6.8 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Number Of Channels: 1
• Clock Frequency Max: 2MHz
• Slew Rate: 0.6V/µs
• Turn On Time: 4µs
• Sensor Case Style: DIP
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 14
• Rohs Compliant: Yes
• Supply Voltage Range: 2.7 To 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

2.0
Descriptions of the pins are listed in
TABLE 2-1:
2.1
The circuit is fully enabled when a logic-low is applied
to the CS input. The circuit enters in Low-Power mode
when a logic-high is applied to this input. During
Low-Power mode, the detector output voltage falls to
V
This pin has an internal pull-up resistor to ensure
proper selection of the circuit.
2.2
V
sink small currents and has low output impedance. A
load capacitor between 100 nF and 1 μF needs to be
located close to this pin.
2.3
The V
digital circuitry within the MCP2036. This pin requires
an appropriate bypass capacitor of 100 nF. The voltage
on this pin should be maintained in the 2.7V-5.5V range
for specified operation.
The V
path for both analog and digital circuitry of the
MCP2036. If an analog ground plane is available, it is
recommended that this device be tied to the analog
ground plane of the PCB.
© 2009 Microchip Technology Inc.
REF
REF
Pad Name
DRVOUT
REFSEL
V
DRVIN
V
and the supply current is reduced to 0.5 μA (typ.).
is a mid-scale reference output. It can source and
LREF
LBTN
DETOUT
V
DD
V
ISOL
SS
CLK
V
V
CS
DET+
NC
NC
DET-
REF
DD
SS
PIN DESCRIPTION
Chip Select (CS)
Voltage Reference (
Power Supply (V
pin is the power supply pin for the analog and
pin is the ground pin and the current return
PIN FUNCTION TABLE
14 Pins
12
13
14
10
11
1
2
3
4
5
6
7
8
9
Pin Number
DD
16 Pins
, V
V
16
10
12
13
14
15
11
REF
Table
1
2
3
4
5
6
7
8
9
SS
)
)
2-1.
PWR
PWR
OUT
OUT
OUT
I/O
IN
IN
IN
IN
IN
IN
IN
IN
IN
—
—
2.4
These pins are inputs for the external coils (reference
and sensor). The inputs should be AC coupled to the
coils by a 10 nF ceramic capacitor.
2.5
Digital input that is used to select between coil inputs
(reference and sensor).
2.6
Digital input that is used to isolate the detector circuit
while measuring the system virtual ground. Pulling the
input high disables the detector input multiplexers,
isolating the op amp circuitry from the coils inputs.
Pulling the input low reconnects the inputs for
measuring both reference and button coil inputs.
2.7
The external clock input is used for synchronous
detection of the AC waveforms on the coils. The clock
signal is also used to generate a triangular waveform
applied to coil driver input.
CMOS
CMOS
CMOS
CMOS
Type
AN
AN
AN
AN
AN
AN
AN
AN
AN
AN
—
—
Inductor Inputs (LREF, LBTN)
Input Selection (REFSEL)
Detector Isolate (ISOL)
Clock (CLK)
Clock Signal
Power Supply Return
Detector Output Voltage
Voltage Reference
Reference Inductor Input
Active Inductor Input
Power Supply
Current Driver Output for Inductors
Current Driver Input
Detector Select Input
Chip Select, Active low
Detector Isolation Control Input,
high = isolate
Negative Input for Output Detector
Positive Input for Output Detector
No connect
No connect
Description
MCP2036
DS22186C-page 5