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| MCP2030A Datasheet, PDF (41/74 Pages) Microchip Technology – Three-Channel Analog Front-End Devicewith 1 mVPP Input Detection Sensitivity | |||
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3.5 ms
Demodulated LFDATA Output
LF Coil Input
MCP2030A
Start bit for data
Low
Current
Standby
Mode
TAGC
(AGC initialization time)
TPAGC
(need
âhighâ)
TGAP
Gap
Pulse
TSTAB
(AFE Stabilization)
Filter
starts
t ï³ TOEH
t ï£ TOET
Legend:
TAGC = AGC initialization time
TPAGC
=
High time after TAGC
TSTAB
=
AGC stabilization time (TAGC + TPAGC)
TE = Time element of pulse (minimum pulse width)
TGAP = AGC stabilization gap
TOEH = Minimum output-enable filter high time
TOEL = Minimum output-enable filter low time
TOET = Maximum output-enable filter period
t ï³ TOEL
t ï³ 2 TE
Filter is passed and
LFDATA is enabled
FIGURE 5-4:
Output-Enable Filter Timing Example (Detailed).
ï£ 2011 Microchip Technology Inc.
DS22235B-page 41
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