參數(shù)資料
型號： TDA8757
廠商： NXP Semiconductors N.V.
英文描述： Triple 8-bit ADC 170 Msps
中文描述： 三路8位ADC為170 MSPS
文件頁數(shù)： 22/37頁
文件大?。?/td> 895K
代理商： TDA8757
Philips Semiconductors
TDA8757
Triple 8-bit ADC 170 Msps
Preliminary data
Rev. 07 — 28 February 2002
22 of 37
9397 750 09457
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
9.3 3W-bus protocol
For the 3W-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
).
Using a 3W-bus interface, an indefinite number of ICs can operate on the same
system. Pin SEN is used to validate the circuits.
10. Limiting values
Table 13: Address sequence for mode 0
S = START condition, A = acknowledge bit (generated by the device) and P = STOP condition.
S
IC ADDRESS A
SUBADDRESS
REGISTER1
A
DATA
REGISTER1
(see
Table 4
)
A
SUBADDRESS
REGISTER2
A
...
P
Table 14: Address sequence for mode 1
S = START condition, A = acknowledge bit (generated by the device) and P = STOP condition.
S
IC ADDRESS A
SUBADDRESS
XX11 1111
A
DATA
REGISTER1
(see
Table 4
)
A
DATA
REGISTER2
A
...
P
Fig 9.
3W-bus protocol.
FCE707
1
SEN
SCL
SDA
tr3W = 600 ns
ts3W = 100 ns
th3W = 100 ns
9
x
x
x
x
x
x
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
1
9
100 ns
Table 15: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
V
CCA
analog supply voltage
V
DDD
logic supply voltage
V
CCD
digital supply voltage
V
CCO
output stages supply voltage
Conditions
Min
0.3
0.3
0.3
0.3
Max
+7.0
+7.0
+7.0
+7.0
Unit
V
V
V
V
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