MCP3909-ESLASHSS datasheet(5/44 Pages) MICROCHIP

5 / 44 page

 2006-2012 Microchip Technology Inc.

DS22025C-page 5

MCP3909

TEMPERATURE CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = 4.5V to 5.5V, AGND, DGND = 0V.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range

-40

—

+85

°C

Operating Temperature Range

-40

—

+125

°C

Note

Storage Temperature Range

-65

—

+150

°C

Thermal Package Resistances

Thermal Resistance, 24L-SSOP

JA

—73

—

°C/W

Note:

The MCP3909 operates over this extended temperature range, but with reduced performance. In any case,

the Junction Temperature (TJ) must not exceed the Absolute Maximum specification of +150°C.

TIMING CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all parameters apply at AVDD = DVDD = 4.5V to 5.5V,

AGND, DGND = 0V, MCLK = 3.58 MHz; TA = -40°C to +85°C.

Parameter

Sym

Min

Typ

Max

Units

Comment

Frequency Outputs

FOUT0 and FOUT1 Pulse Width

(Logic Low)

tFW

—

275

—

984376 MCLK periods

(Note 1)

HFOUT Pulse Width

tHW

—

322160 MCLK periods

(Note 2)

FOUT0 and FOUT1 Pulse Period

tFP

Refer to Equation 4-1

HFOUT Pulse Period

tHP

Refer to Equation 4-2

FOUT0 to FOUT1 Falling-Edge

Time

tFS2

—

0.5 tFP

—

FOUT0 to FOUT1 Minimum Sepa-

ration

tFS

—

4/MCLK

—

Digital I/O

FOUT0 and FOUT1 Output High

Voltage

VOH

4.5

——

VIOH = 10 mA, DVDD = 5.0V

FOUT0 and FOUT1 Output Low

Voltage

VOL

——

0.5

IOL = 10 mA, DVDD = 5.0V

HFOUT and NEG Output High

Voltage

VOH

4.0

——

VIOH = 5 mA, DVDD = 5.0V

HFOUT and NEG Output Low

Voltage

VOL

——

0.5

IOL = 5 mA, DVDD = 5.0V

High-Level Input Voltage

(All Digital Input Pins)

VIH

2.4

——

VDVDD = 5.0V

Low Level Input Voltage

(All Digital Input Pins)

VIL

——

0.85

DVDD = 5.0V

Input Leakage Current

—0.1

±1

µA

VIN = 0, VIN = DVDD

Pin Capacitance

——

(Note 3)

Note 1:

If output pulse period (tFP) falls below 984376*2 MCLK periods, then tFW = 1/2 tFP.

If output pulse period (tHP) falls below 322160*2 MCLK periods, then tHW = 1/2 tHP. When F2, F1, F0

equals 0,1,1, the HFOUT pulse time is fixed at 64 x MCLK periods or 18 µs for MCLK = 3.58 MHz.

Specified by characterization, not production tested.

Serial timings specified and production tested with 180 pF load.

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