MCP2035-ISLASHST datasheet(6/68 Pages) MICROCHIP

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LCX Tuning Capacitor

CTUNX

—0

—

VDD = 3.0V,

Config. Reg. 1,

bits <6:1> Setting = 000000

63 pF ±30%

Config. Reg. 1, bits <6:1> Setting = 111111

63 steps, approx. 1 pF/step

Monotonic increment in capacitor value from setting =

000000

to 111111 by design

Q of Internal Input Tuning

Capacitors

Q_C

50(1)

——

Demodulator Charge Time

(delay time of demodulated

output to rise)

TDR

—50

—

µs

VDD = 3.0V

Minimum modulation depth setting = 33%

Input conditions:

Amplitude = 300 mVPP

Modulation depth = 100%

Demodulator Discharge Time (delay time of

demodulated

output to fall)

TDF

—50

—

µs

VDD = 3.0V

MOD depth setting = 33%

Input conditions:

Amplitude = 300 mVPP

Modulation depth = 100%

Rise time of LFDATA

TRLFDATA

—0.5

—

µs

VDD 3.0V. Time is measured from 10% to 90% of

amplitude

Fall time of LFDATA

TFLFDATA

—0.5

—

µs

VDD 3.0V

Time is measured from 10% to 90% of amplitude

Automatic Gain Control (AGC) stabilization

time (TAGC + TPAGC)

TSTAB

4—

—

AGC initialization time

TAGC

—3.5

—

High time after AGC initialization time

TPAGC

—62.5

—

µs

AC CHARACTERISTICS (CONTINUED)

Electrical Specifications:

Standard Operating Conditions (unless otherwise stated), Supply Voltage: 2.0V

VDD 3.6V, Operating temperature: -40°C  TA  +85°C,

LCCOM connected to VSS, LCX Input Signal: Sinusoidal 300 mVPP, Carrier Frequency = 125 kHz, Bits <3:1> of Configuration Register 0: LCXEN = 0, LCZEN =

LCYEN = 1.

Parameters

Sym.

Min.

Typ(2)

Max.

Units

Conditions

Note 1:

Parameter is characterized but not tested.

Data in “Typ.” column is at 3.0V, +25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Required output enable filter high time must account for input path analog delays (= TOEH - TDR + TDF).

Required output enable filter low time must account for input path analog delays (= TOEL + TDR - TDF).

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