MCP3906T-I/SS View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'MCP3906T-I/SS' PDF : 26 Pages View PDF
MCP3905/06
TIMING CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all parameters apply at AVDD = DVDD = 4.5V – 5.5V,
AGND, DGND = 0V, MCLK = 3.58 MHz; TA = -40°C to +85°C.
Parameter
Sym Min Typ Max Units
Comment
Frequency Output
FOUT0 and FOUT1 Pulse Width
(Logic-Low)
tFW
—
275
—
ms 984376 MCLK periods
(Note 1)
HFOUT Pulse Width
tHW
—
90
—
ms 322160 MCLK periods
(Note 2)
FOUT0 and FOUT1 Pulse Period
HFOUT Pulse Period
FOUT0 to FOUT1 Falling-Edge Time
FOUT0 to FOUT1 Min Separation
FOUT0 and FOUT1 Output High Voltage
FOUT0 and FOUT1 Output Low Voltage
HFOUT Output High Voltage
HFOUT Output Low Voltage
High-Level Input Voltage
(All Digital Input Pins)
tFP
tHP
tFS2
tFS
VOH
VOL
VOH
VOL
VIH
Refer to Equation 4-1
Refer to Equation 4-2
— 0.5 tFP —
— 4/MCLK —
4.5
—
—
—
—
0.5
4.0
—
—
—
—
0.5
2.4
—
—
s
s
V IOH = 10 mA, DVDD = 5.0V
V IOL = 10 mA, DVDD = 5.0V
V IOH = 5 mA, DVDD = 5.0V
V IOL = 5 mA, DVDD = 5.0V
V DVDD = 5.0V
Low-Level Input Voltage
(All Digital Input Pins)
VIL
—
—
0.85
V DVDD = 5.0V
Input Leakage Current
Pin Capacitance
—
— ±3
µA VIN = 0, VIN = DVDD
—
—
10
pF Note 3
Note 1:
2:
3:
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.
Specified by characterization, not production tested.
FOUT0
FOUT1
tFW
tFS2
tFP
tFS
HFOUT
tHW
tHP
NEG
FIGURE 1-1:
Output Timings for Pulse Outputs and Negative Power Pin.
DS21948C-page 4
© 2005 Microchip Technology Inc.
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