Synopsys TSMC180, Справочник данных, Страница: 9 / 30

DWC ADC 12b5M SAR, TSMC180 IP Databook
April 2012 Synopsys, Inc. 9-30
Pin Name I/O Type Function
b11..0 O Digital
Parallel Output Bits. The MSB is b11 ; the LSB is b0 in 12-bit mode, b2 in 10-bit mode, b4 in
8-bit mode and b6 in 6-bit mode.
Under ADC test mode it is mandatory to have direct access to this signal from chip pinout or
through registers.
sob O Digital Serial Output Bit (starting from the MSB).
eoc O Digital
End-of-conversion. The rising edge indicates that conversion terminated and output data is
valid.
Under ADC test mode it is mandatory to have direct access to this signal from chip pinout or
through registers.
bvos6..0 O Digital Outputs of the digital offset calibration block.
bvosi6..0 I Digital Input of the digital offset calibration block
bypasscal I Digital
Signal that bypasses the offset calibration block (Active H). In this mode
bvos6…0
is set to
1000000.
loadcal I Digital Signal that loads the offset calibration w ord into the internal registers (Active H)
startcal I Digital Signal that starts the offset calibration cycle (Active H).
resetcal I Digital Reset of internal registers of the digital offset calibration block (Active H).
calon O Digital Indicates if the ADC is in calibration mode (Active H).
scanclk I Digital Scan chain clock signal. Used to capture the data and shift the patterns through the chain.
scanen I Digital Selects betw een capture ( scanen = L) and shift ( scanen = H) modes.
scanmode I Digital Configures digital offset calibration block to scan test mode (Active H).
scanreset I Digital Scan chain reset.
scanin I Digital Scan chain input.
scanout O Digital Scan chain output.
avdd, agnd I/O Pow er Top and Bottom Analog Pow er Supplies (3.3V).
dvdd, dgnd I/O Pow er Top and Bottom Digital Pow er Supplies (1.8V).
dvdd_ldo I/O Analog
Internal voltage regulator output ( enldo =H). With enldo =L (internal voltage regulator bypass)
the pow er signal must be supplied externally(1.8V).