ADC1415S NXP Semiconductors, ADC1415S Datasheet - Page 16

• Manufacturer Part Number: ADC1415S
• Description: Single 14-bit ADC
• Manufacturer: NXP Semiconductors

NXP Semiconductors
11. Application information
ADC1415S_SER_3
Preliminary data sheet
11.1.1 SPI and Pin control modes
11.1.2 Operating mode selection
11.1.3 Selecting the output data standard
11.1 Device control
The ADC1415S can be controlled via the Serial Peripheral Interface (SPI control mode) or
directly via the I/O pins (Pin control mode).
The device enters Pin control mode at power-up, and remains in this mode as long as pin
CS is held HIGH. In Pin control mode, the SPI pins SDIO, CS and SCLK are used as
static control pins.
SPI control mode is enabled by forcing pin CS LOW. Once SPI control mode has been
enabled, the device will remain in this mode. The transition from Pin control mode to SPI
control mode is illustrated in
When the device enters SPI control mode, the output data standard and data format are
determined by the level on pin SDIO as soon as a transition is triggered by a falling edge
on CS.
The active ADC1415S operating mode (Power-up, Power-down or Sleep) can be selected
via the SPI interface (see
described in
Table 10.
The output data standard (CMOS or LVDS DDR) can be selected via the SPI interface
(see
HIGH, otherwise CMOS is selected.
Pin PWD
0
0
1
1
Fig 7.
Table
Control mode selection.
Operating mode selection via pin PWD and OE
23) or using pin ODS in Pin control mode. LVDS DDR is selected when ODS is
Table
SCLK/DFS
SDIO/ODS
All information provided in this document is subject to legal disclaimers.
ADC1415S series; input buffer; CMOS or LVDS DDR digital outputs
10.
CS
Rev. 03 — 12 April 2010
Pin OE
0
1
0
1
two's complement
Pin control mode
Table
Data format
LVDS DDR
Figure
19) or using pins PWD and OE in Pin control mode, as
7.
offset binary
Data format
Operating mode
Power-up
Power-up
Sleep
Power-down
CMOS
ADC1415S series
R/W
SPI control mode
W1
W0
005aaa039
Output high-Z
no
yes
yes
yes
A12
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