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AD73360L Datasheet(PDF) 14 Page - Analog Devices

Part No. AD73360L
Description  Six-Input Channel Analog Front End
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD73360L Datasheet(HTML) 14 Page - Analog Devices

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REV. 0
AD73360L
–14–
Table XII. Control Register H Description
76543210
INV
TME
CH6
CH5
CH4
CH3
CH2
CH1
Bit Name
Description
0
CH1
Channel 1 Select
1
CH2
Channel 2 Select
2
CH3
Channel 3 Select
3
CH4
Channel 4 Select
4
CH5
Channel 5 Select
5
CH6
Channel 6 Select
6
TME
Test Mode Enable
7
INV
Enable Invert Channel Mode
REGISTER BIT DESCRIPTIONS
Control Register A
CRA:0
Data/Program Mode. This bit controls the operating mode of the AD73360L. If CRA:1 is 0, a 0 in this bit places the
part in Program Mode. If CRA:1 is 0, a 1 in this bit places the part in Data Mode.
CRA:1
Mixed Mode. If this bit is a 0, the operating mode is determined by CRA:0. If this bit is a 1, the part operates in
Mixed Mode.
CRA:2
Reserved. This bit is reserved and should be programmed to 0 to ensure correct operation.
CRA:3
SPORT Loop Back. This is a diagnostic mode. This bit should be set to 0 to ensure correct operation.
CRA:4–6
Device Count Bits. These bits tell the AD73360L how many devices are used in a cascade. Both devices in the
cascade should be programmed to the same value ensure correct operation. See Table XVI.
CRA:7
Reset. Writing a 1 to this bit will initiate a software reset of the AD73360L.
Control Register B
CRB:0–1
Decimation Rate. These bits are used to set the decimation of the AD73360L. See Table XV.
CRB:2–3
Serial Clock Divider. These bits are used to set the serial clock frequency. See Table XIV.
CRB:4–6
Master Clock Divider. These bits are used to set the Master Clock Divider ratio. See Table XIII.
CRB:7
Control Echo Enable. Setting this bit to a 1 will cause the AD73360L to write out any control words it receives.
This is used as a diagnostic mode. This bit should be set to 0 for correct operation in Mixed Mode or Data Mode.
Control Register C
CRC:0
Global Power-Up. Writing a 1 to this bit will cause all six channels of the AD73360L to power up, regardless of
the status of the Power Control Bits in CRD-CRF. If fewer than six channels are required, this bit should be set to
0 and the Power Control Bits of the relevant channels should be set to 1.
CRC:1–4
Reserved. These bits are reserved and should be programmed to 0 to ensure correct operation.
CRC:5
Power-Up Reference. This bit controls the state of the on-chip reference. A 1 in this bit will power up the refer-
ence. A 0 in this bit will power down the reference. Note that the reference is automatically powered up if any
channel is enabled.
CRC:6
Reference Output. When this bit is set to 1, the REFOUT pin is enabled.
CRC:7
Reserved. This bit is reserved and should be programmed to 0 to ensure correct operation.
Control Register D
CRD:0–2
Input Gain Selection. These bits select the input gain for ADC1. See Table II.
CRD:3
Power Control for ADC1. A 1 in this bit powers up ADC1.
CRD:4–6
Input Gain Selection. These bits select the input gain for ADC2. See Table II.
CRD:7
Power Control for ADC2. A 1 in this bit powers up ADC2.
Control Register E
CRE:0–2
Input Gain Selection. These bits select the input gain for ADC3. See Table II.
CRE:3
Power Control for ADC3. A 1 in this bit powers up ADC3.
CRE:4–6
Input Gain Selection. These bits select the input gain for ADC4. See Table II.
CRE:7
Power Control for ADC4. A 1 in this bit powers up ADC4.
CONTROL REGISTER H


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