RFHCS362GT-I/SO Microchip Technology, RFHCS362GT-I/SO Datasheet - Page 33

• Manufacturer Part Number: RFHCS362GT-I/SO
• Description: IC CODE HOPPNG ENCDR W/RF 18SOIC
• Manufacturer: Microchip Technology

Specifications of RFHCS362GT-I/SO

• Frequency: 310MHz ~ 440MHz
• Applications: Automotive, Building Access, Garage Openers
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 3.3 kbps
• Power - Output: -12dBm ~ 2dBm
• Current - Transmitting: 11.5mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -

FIGURE 6-4:
TABLE 6-4:
TABLE 6-5:
3900 pF
1500 pF
1000 pF
3900 pF
3900 pF
3900 pF
0.01 uF
2002 Microchip Technology Inc.
Note 1: Standard Operating Conditions (unless otherwise stated) T
Note 1: Standard Operating Conditions (unless otherwise stated) T
C1
C1
C2
1000 pF
390 pF
100 pF
390 pF
680 pF
47 pF
18 pF
C2
C2
EXAMPLE LOOP FILTER
CIRCUIT
EXAMPLE LOOP FILTER VALUES FOR TRANSMIT FREQUENCY = 433.92 MHz
EXAMPLE LOOP FILTER VALUES FOR TRANSMIT FREQUENCY = 315 MHz
R1
C1
1.5K
2.7K
4.7K
680
680
680
680
R1
R1
rfHCS362G/362F
LF
Loop BW
Loop BW
1.05 MHz
165 kHz
360 kHz
610 kHz
190 kHz
175 kHz
155 kHz
Fn (natural
Fn (natural
Preliminary
freq in Hz)
freq in Hz)
103 kHz
166 kHz
203 kHz
112 kHz
112 kHz
112 kHz
64 kHz
sampling delay)
sampling delay)
Phase Margin
(not counting
Phase Margin
(not counting
A
A
65 deg
63 deg
55 deg
50 deg
55 deg
47 deg
39 deg
= 25°C, RF
= 25°C, RF
rfHCS362G/362F
EN
EN
= 1, V
= 1, V
2nd Order
2nd Order
damping
damping
factor
factor
1.37
1.89
2.10
0.94
0.94
0.94
3.0
DDRF
DDRF
= 3V.
= 3V.
DS41189A-page 33
Calculated
Calculated
Lock Time
Lock Time
47 s
29 s
18 s
15 s
27 s
27 s
27 s
(1)
(1)