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Philips Semiconductors
TDA8752B
Triple high-speed Analog-to-Digital Converter 110 Msps
9397 750 07338
© Philips Electronics N.V. 2000. All rights reserved.
Product specification Rev. 03 — 21 July 2000 23 of 38
9.3 3-wire serial bus protocol
For the 3-wire serial bus the first byte refers to the register address which is programmed. The second byte refers to the
data to be sent to the chosen register (see Tabl e 4). The acquisition is achieved via SEN.
Using the 3-wire serial bus interface, an indefinite number of ICs can operate on the same system. Pin SEN is used to
validate the circuits.
Fig 10. 3-wire serial bus protocol.
FCE474
t
s3W
= 100 ns
t
h3W
= 100 ns
t
r3W
= 600 ns
100 ns
1199
XXXXA3A2A1A0XD7D6D5D4D3D2D1D0X
SEN
SCL
SDA