MCP3909-I/SS Microchip Technology, MCP3909-I/SS Datasheet - Page 24

• Manufacturer Part Number: MCP3909-I/SS
• Description: IC POWER METERING-1 PHASE 24SSOP
• Manufacturer: Microchip Technology

Specifications of MCP3909-I/SS

• Package / Case: 24-SSOP (0.200", 5.30mm Width)
• Input Impedance: 390 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.85V
• Current - Supply: 2.3mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Meter Type: Single Phase
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 24
• Interface Type: Serial, SPI
• Supply Voltage Max: 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP3909EV-MCU16 - EVALUATION BOARD FOR MCP3909MCP3909RD-3PH1 - REF DESIGN MCP3909 3PH ENGY MTR
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP3909
5.3
Multiplier mode allows the user to retrieve the output
of the multiplier on the MCP3909 device. Data is
presented in a 20 bit (19 bit + sign) protocol, MSB first.
A data ready flag (DR) is output for every MCLK/256
TABLE 5-2:
FIGURE 5-4:
DS22025A-page 24
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NEG / SDO
F2 / SCK
F1 / SDI
F0 / CS
Multiplier Output Mode
Multiplier Code
Hi-z
MULTIPLIER OUTPUT MODE CODING
Multiplier Output Mode.
Binary
DR
=
(
-------------------------------------------------------------------------------- - 524288 8.06 G
CH0
SIGN MSB
1
D19
2
D18
+
–
3
D17
CH0
4
D16
V
–
REF
) CH1
X 20
Hi-z
(
X 20
2
clock cycles and a new multiplier output value is
ready. If the multiplier value is not clocked out of the
device it will be over-written. Data is clocked out on the
rising edge of SCK.
17 18
+
D3
–
CH1
D2
Decimal
+524287
+524286
-524287
-524288
19 20
D1
-1
0
–
)
LSB
D0
•
© 2006 Microchip Technology Inc.
0
•
Hi-z
•