Tsop1136; Pcf8591 - Toshiba 27WLT56B Service Manual

TSOP1136

12.22.

PCF8591

12.23.
12.23.1. General Description
The PCF8591 is a single-chip, single-supply low power 8-bit CMOS data acquisition device with four
analog inputs, one analog output and a serial I
Three address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of
up to eight devices connected to the I
and from the device are transferred serially via the two-line bidirectional I
The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit
analog-to-digital conversion and an 8-bit digital-to-analog conversion. The maximum conversion rate is
given by the maximum speed of the I
12.23.2. Features
• Single power supply
• Operating supply voltage 2.5 V to 6 V
• Low standby current
• Serial input/output via I 2 C-bus
• Address by 3 hardware address pins
• Sampling rate given by I 2 C-bus speed
• 4 analog inputs programmable as single-ended or differential inputs
• Auto-incremented channel selection
•
Analog voltage range from
27" TFT TV Service Manual
2
C-bus interface.
2
C-bus without additional hardware. Address, control and data to
2
C-bus.
to
VSS VDD
32
2
C-bus.
05/09/2005