UZZ9001,118 NXP Semiconductors, UZZ9001,118 Datasheet - Page 5

• Manufacturer Part Number: UZZ9001,118
• Description: ELECTRONIC CONDITIONING SENSOR
• Manufacturer: NXP Semiconductors
• Type: Sensor Conditionerr

Specifications of UZZ9001,118

• Input Type: Differential
• Output Type: Digital
• Interface: SPI Serial
• Current - Supply: 15mA
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 934055833118; UZZ9001 /T3; UZZ9001 /T3

Philips Semiconductors
The following list gives a short description of the relevant
block functions:
1. The ADC block contains two Sigma Delta AD
2. Two digital low pass decimation filters convert the low
3. The ALU block derives an angle value from the two
4. The SPI converts the output of the ALU block to a SPI
5. The CONTROL block provides the clock and the
6. The RESET block supplies a reset signal during
7. The Oscillator unit generates the master clock.
2000 Nov 27
handbook, full pagewidth
Sensor Conditioning Electronic
converters, sensor offset correction circuitry and the
circuitry required for the sensitivity and offset
adjustment of the chip output voltage curve.
resolution high speed bit stream coming from the ADC
Sigma Delta converters into a low speed digital word.
digital inputs using the CORDIC algorithm.
compatible 16 bit word.
control signals for the chip.
power-up and power-down when the power supply is
below a certain value.
V O1
V O1
V O2
V O2
RESET
ADC1
ADC2
reset
UZZ9001
DECIMATION
DECIMATION
Fig.1 Block diagram.
FILTER
FILTER
5
OSCILLATOR
Serial Peripheral interface (SPI)
The UZZ9001 provides an interface to SPI compatible
devices, and as a slave node functions in one operational
mode only. For Motorola SPI devices, this mode is
selected by setting CPHA to 1 and CPOL to 1. In this
transfer mode, data bits are sampled by the master using
the leading edge of the clock as shown in Figure 2. The
falling edge indicates that the next data bit has to be
provided by the slave device (shift operation).
An advantage of this mode is that the CS input toggles only
once between every two sensor data bytes (see Fig.3).
Data transmission can be stopped by the user at any time.
The leading edge of the CS input initialises the SPI shift
register allowing the start of a complete new transmission.
If the CS line is held active low during stop of transmission,
resumption of transmission can be made without loss of
data
ALU
CONTROL
SPI
MHB698
data
CLK
CS
DATA-CLK
SMODE
Product specification
UZZ9001