PIC12F635/PIC16F636/639
FIGURE 11-6:
OUTPUT ENABLE FILTER TIMING EXAMPLE (DETAILED)
Start bit
LFDATA Output
LF Coil Input
3.5 ms
TPAGC
TGAP
Gap
Pulse
Low
t ≥ TOEL
t ≥ TE
Current
Standby
Mode
(need
“high”)
TAGC
(AGC settling time)
t ≥ TOEH
t ≤ TOET
TSTAB
(AFE Stabilization)
Filter
starts
Filter is passed and
LFDATA is enabled
Legend:
TAGC = AGC stabilization time
TE = Time element of pulse
TGAP = AGC stabilization gap
TOEH = Minimum output enable filter high time
TOEL = Minimum output enable filter low time
TOET = Maximum output enable filter period
TPAGC = High time after TAGC
TSTAB = TAGC + TPAGC
DS41232D-page 104
© 2007 Microchip Technology Inc.