NXP Semiconductors Triple high-speed Analog-to-Digital Converter 110 Msps TDA8752B - Manual (Page 23)

Philips Semiconductor
s
TD
A8752B
T
riple high-speed Analog-to-Digital Con
ver
ter 110 Msps
9397 750 07338
© Philips Electronics N.V
. 2000. All r
ights reser
v
ed.
Pr
oduct specification
Re
v
. 03 — 21 J
u
ly
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
Table 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
ts3W = 100 ns th3W = 100 ns
tr3W = 600 ns 100 ns
1 1 9 9
X X X X A3 A2 A1 A0 X D7 D6 D5 D4 D3 D2 D1 D0 X
SEN
SCL
SDA