LC89066 Datasheet, PDF (3/4 Pages) Sanyo Semicon Device – 6-Bit Video A/D Converters

Pin Functions
. _LC89066
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
. _LC89066M
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Symbol
D6
D5
D4
D3
D2
D1
CLK
GND
V_DD
V_DD
V_RH
ANI
V_RL
V_DD
V_DD
GND
Symbol
D6
D5
N.C.
D4
D3
D2
D1
N.C.
CLK
GND
V_DD
V_DD
N.C.
V_RH
ANI
V_RL
V_DD
N.C.
V_DD
GND
LC89066, 89066M
Description
Digital output data (least significant bit)
Digital output data
Digital output data (most significant bit)
Clock input
Ground (analog)
Power supply (analog)
Reference voltage input (high)
Analog voltage input
Reference voltage input (low)
Power supply (digital)
Ground (digital)
Description
Digital output data (least significant bit)
Digital output data
No connection
Digital output data
Digital output data (most significant bit)
No connection
Clock input
Ground (analog)
Power supply (analog)
No connection
Reference voltage input (high)
Analog voltage input
Reference voltage input (low)
Power supply (digital)
No connection
Power supply (digital)
Ground (digital)
Functional Description
Signal on the analog signal input pin ANI is input into the comparators on the rising edge of the CLK input signal. This signal is
compared with the voltage divided by resistors and digitized. This digitized signal is coded by the encoder logic and output on the
next rising edge of the CLK input signal. The conversion range depends on the converter high and low reference voltage V_RH and
V_RL. When zero transient voltage is set to 3.000 V by V_RL voltage and full scale transient voltage to 4.984 V by V_RH voltage, the
output data is linearly related to the input voltage as shown in the table below.
Input voltage (V)
0
to 3.000
1
3.000 to 3.032
2
3.032 to 3.064
3
3.064 to 3.096.
....
....
61
4.920 to 4.952
62
4.952 to 4.984
63
4.984 to
Output data
000000
000001
000010
000011
....
111101
111110
111111
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