MAX1471_05 Datasheet, PDF (24/26 Pages) Maxim Integrated Products – 315MHz/434MHz Low-Power, 3V/5V ASK/FSK Superheterodyne Receiver

315MHz/434MHz Low-Power, 3V/5V
ASK/FSK Superheterodyne Receiver
CS
DIO
tOFF
tOFF
tCPU
tRF
ADATA OR
FDATA
Figure 12. DRX Mode Sequence of the MAX1471
tCPU
tLOW
tRF
Table 10. Off-Timer (tOFF) Configuration
PRESCALE1
0
0
1
1
PRESCALE0
0
1
0
1
t_OFF TIME BASE
(1 LSB)
120µs
480µs
1920µs
7680µs
MIN t_OFF
REG 0x4 = 0x00
REG 0x5 = 0x01
120µs
480µs
1.92ms
7.68ms
MAX t_OFF
REG 0x4 = 0xFF
REG 0x5 = 0xFF
7.86s
31.46s
2 min 6s
8 min 23s
Table 11. CPU Recovery Timer (tCPU)
Configuration
TIME BASE
(1 LSB)
120µs
MIN t_CPU
REG 0x6 = 0x01
120µs
MAX t_CPU
REG 0x6 = 0xFF
30.72ms
Table 12. RF Settle Timer (tRF)
Configuration
TIME BASE
(1 LSB)
120µs
MIN t_RF
REG 0x7 = 0x00
REG 0x8 = 0x01
120µs
MAX t_RF
REG 0x7 = 0xFF
REG 0x8 = 0xFF
7.86s
Chip Information
TRANSISTOR COUNT: 21,344
PROCESS: CMOS
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