PIC16F636T-I/SL(2005) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F636T-I/SL
(Rev.:2005)

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC12F635/PIC16F636/639

15.11 AC Characteristics: Analog Front-End for PIC16F639 (industrial, extended)

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Supply Voltage

2.0V ≤ VDD ≤ 3.6V

Operating temperature

-40°C ≤ TAMB ≤ +85°C for industrial

-40°C ≤ TAMB ≤ +125°C for extended

LC Signal Input

Sinusoidal 300 mVPP

Carrier Frequency

125 kHz

LCCOM connected to VSS

Param

No.

Sym.

VSENSE

Characteristic

LC Input Sensitivity

VDE_Q

RFLM

SADJ

Coil de-Q’ing Voltage -

RF Limiter (RFLM) must be active

RF Limiter Turn-on Resistance

(LCX, LCY, LCZ)

Sensitivity Reduction

VIN_MOD

Minimum Modulation Depth

75% ± 12%

50% ± 12%

25% ± 12%

12% ± 12%

CTUNX LCX Tuning Capacitor

Min

Typ†

Max

Units

Conditions

VDD = 3.0V

1

3.0

6

mVPP Output enable filter disabled

AGCSIG = 0; MODMIN = 00

(50% modulation depth setting)

Input = Continuous Wave (CW)

Output = Logic level transition from low-to-

high at sensitivity level for CW input.

3

—

5

V VDD = 3.0V, Force IIN = 5 μA

—

—

700

Ohm VDD = 2.0V, VIN = 8 VDC

—

0

—

—

-30

—

63

75

87

38

50

62

13

25

37

0

12

24

—

0

—

VDD = 3.0V

dB No sensitivity reduction selected

dB Max reduction selected

Monotonic increment in attenuation value from

setting = 0000 to 1111 by design

VDD = 3.0V

%

%

%

%

VDD = 3.0V,

pF Config. Reg. 1, bits <6:1> Setting = 000000

CTUNY LCY Tuning Capacitor

44.1

63

81.9

pF 63 pF +/- 30%

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

63 steps, 1 pF/step

Monotonic increment in capacitor value from

setting = 000000 to 111111 by design

VDD = 3.0V,

—

0

—

pF Config. Reg. 2, bits <6:1> Setting = 000000

44.1

63

81.9

pF 63 pF +/- 30%

Config. Reg. 2, bits <6:1> Setting = 111111

63 steps, 1 pF/step

Monotonic increment in capacitor value from

setting = 000000 to 111111 by design

FCARRIER Carrier frequency

—

125

—

kHz Characterized at bench.

FMOD Input modulation frequency

—

—

4

kHz Input data rate, characterized at bench.

*

†

Note 1:

2:

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)

DS41232B-page 168

Preliminary

© 2005 Microchip Technology Inc.

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