EMC2300-AZC-TR SMSC, EMC2300-AZC-TR Datasheet - Page 21

• Manufacturer Part Number: EMC2300-AZC-TR
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC2300-AZC-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Fan Control Device with High Frequency PWM and Temperature Monitors
Datasheet
SMSC EMC2300
AVG2
01X (default)
0
0
0
1
AVG[2:0]
1XX
000
001
SFTR[7:5]
AVG1
X
Note: The default for the AVG[2:0] bits is ‘010’b.
To calculate conversion cycle timing for a given averaging mode:
Total Conversion Time = (TEMP_CONV)*96/(45kHz +/-10%)+ (VOLT_CONV)*68/(45kHz +/-10%)
Example: To calculate the nominal conversion time FOR AVG[2:0] = 001b.
Total Conversion Time = (TEMP_CONV)*96/(45kHz)+ (VOLT_CONV)*68/(45kHz)
Total Conversion Time = (16+16+1)*96/(45kHz)+ (2*1)*68/(45kHz)
Total Conversion Time = (33)*2.133ms+ (2)*1.511ms = ~73ms
Table 6.2
modes.
Note 6.1
Note 6.2
0
0
1
Compute total number of temperature conversions (TEMP_CONV)
Compute total number of voltage conversions (VOLT_CONV)
Calculate Time to complete all conversions is:
AVG0
(2x128)+(1x8)=264
TEMPERATURE
illustrates the min., nom., and max. conversion cycle timing for each of the four averaging
CONVERSIONS
(2x16)+(1x1)=33
X
X
0
1
The hardware monitor conversion clock is 45KHz ± 10%.
Temperature conversions take 96 clocks, each (2.133ms nom.); Voltage conversions take
68 clocks, each (1.511ms nom).
3x16=48
3x32=96
TOTAL
REMOTE
DIODE 1
128
16
16
32
Table 6.2 Conversion Cycle Timing
Table 6.1 AVG[2:0] Bit Decoder
REMOTE
DIODE 2
DATASHEET
128
CONVERSIONS
16
16
32
VOLTAGE
2x16=32
2x32=64
MEASUREMENTS PER READING
2x8=16
TOTAL
2x1=2
21
INTERNAL
DIODE
16
32
8
1
CONVERSION CYCLE TIME (MSEC)
MIN.
191
536
382
67
ALL VOLTAGE READINGS
(VCCP, AND VCC)
NOM.
587
210
420
73
Revision 0.32 (06-23-08)
16
32
8
1
MAX.
652
233
466
82