APGRD001 Microchip Technology, APGRD001 Datasheet - Page 3

• Manufacturer Part Number: APGRD001
• Description: REF DESIGN PKE PIC16F639
• Manufacturer: Microchip Technology
• Type: PKE, RKEr

Specifications of APGRD001

• Frequency: 125kHz
• Processor To Be Evaluated: PIC16F639
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC16F639, PIC16F636, PIC18F2680
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 1:
FIGURE 2:
© 2007 Microchip Technology Inc.
(2-3.6V)
Battery
Base Station
433.92 MHz
D4
RF Circuitry
(UHF TX)
BIDIRECTIONAL PASSIVE KEYLESS ENTRY (PKE) SYSTEM
EXAMPLE OF PASSIVE KEYLESS ENTRY (PKE) TRANSPONDER CONFIGURATION
Transmitter/
Receiver
Receiver
D3
LED
UHF
LF
C1
+3V
125 kHz
LC Series
Resonant Circuit
air-core
D1
D2
coil
Push Button Switch
LFDATA/RSSI/SDIO
Encrypted
S0
S1
S2
Codes
LF Talk-back
(125 kHz)
LF Command
(125 kHz)
RFEN
V
Data
V
LCY
LCZ
ferrite-core
DDT
DD
coil
Response
(UHF)
1
2
3
4
5
6
7
8
9
10
Ant. X
Ant. Y
Ant. Z
125 kHz
LC Parallel
Resonant Circuit
20
19
18
17
16
15
14
13
12
11
ferrite-core
coil
V
V
LCCOM
LCX
SS
SST
S3
S4
S5
SCLK/ALERT
Analog Front-End
Transponder
LED
Transmitter
PIC16F639
(PIC16F636)
CS
(MCP2030)
3-Input
UHF
MCU
AN1024
+
DS01024B-page 3
LED
+3V