MCP3903-I/SS Microchip Technology, MCP3903-I/SS Datasheet - Page 44

• Manufacturer Part Number: MCP3903-I/SS
• Description: IC AFE 24BIT 64KSPS 28SSOP
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MCP3903-I/SS

• Featured Product: MCP3903 Six Channel ΔΣ A/D Converter
• Number Of Bits: 24
• Number Of Channels: 6
• Power (watts): -
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.7 V ~ 3.6 V
• Package / Case: 28-SSOP (0.209", 5.30mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP3903
7.6
TABLE 7-8:
REGISTER 7-6:
DS25048B-page 44
bit 23
bit 7
bit 23:18
bit 17:12
bit 11:6
bit 5:4
bit 3:2
bit 1
bit 0
SHUTDOWN_
DITHER_CH1
RESET_CH5
CONFIG
R/W-0
R/W-0
R/W-1
bit 15
CH3
Name
Config Register - Configuration
Register
RESET_CHn: Reset mode setting for ADCs
1 = Reset mode for the corresponding ADC channel ON
0 = Reset mode for the corresponding ADC chnnel OFF (default)
SHUTDOWN_CHn: Shutdown mode setting for ADCs
1 = Shutdown mode for the corresponding ADC channel ON
0 = Shutdown mode for the corresponding ADC channel OFF(default)
DITHER_CHn: Control for dithering circuit for idle tones cancellation
1 = Dithering circuit for the corresponding ADC channel ON (default)
0 = Dithering circuit for the corresponding ADC channel OFF
OSR[1:0] Oversampling Ratio for Delta Sigma A/D Conversion (ALL CHANNELS, f
11 = 256
10 = 128
01 = 64 (default)
00 = 32
PRESCALE[1:0] Internal Master Clock (AMCLK) Prescaler Value
11 = AMCLK = MCLK/ 8
10 = AMCLK = MCLK/ 4
01 = AMCLK = MCLK/ 2
00 = AMCLK = MCLK (DEFAULT)
EXTVREF Internal Voltage Reference Shutdown Control
1 = Internal Voltage Reference Disabled
0 = Internal Voltage Reference Enabled (default)
EXTCLK Clock Mode
1 = CLOCK Mode (Internal Oscillator Disabled - Lower Power)
0 = XT Mode - A crystal must be placed between OSC1/OSC2 (default)
SHUTDOWN_
DITHER_CH0
RESET_CH4
R/W-0
R/W-0
R/W-1
CONFIG Register
CH2
Bits
24
CONFIG REGISTER
SHUTDOWN_CH1 SHUTDOWN_CH0 DITHER_CH5 DITHER_CH4
RESET_CH3
R/W-0
R/W-0
R/W-0
OSR1
Address
0x0A
RESET_CH2
R/W
Cof
R/W-0
R/W-0
R/W-1
OSR0
RESET_CH1 RESET_CH0 SHUTDOWN_CH5
PRESCALE1 PRESCALE0
R/W-0
R/W-1
R/W-0
R/W-0
R/W-1
R/W-0
DITHER_CH3
© 2011 Microchip Technology Inc.
EXTVREF
R/W-0
R/W-1
R/W-0
d
/ f
S
SHUTDOWN_CH4
)
DITHER_CH2
EXTCLK
R/W-0
R/W-1
R/W-0
bit 8
bit 16
bit 0