參數(shù)資料
型號(hào): TDA8708A
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Video analog input interface
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP28
封裝: PLASTIC, SOT-117-1, DIP-28
文件頁數(shù): 10/24頁
文件大?。?/td> 190K
代理商: TDA8708A
June 1994
10
Philips Semiconductors
Product specification
Video analog input interface
TDA8708A
Table 1
Video input selection (CVBS).
Table 2
AGC output current.
Note
1.
2.
X = don't care.
Mode 2 can only be initialized with successive pulses
on GATE A and GATE B (see Fig.5).
I1
I0
SELECTED INPUT
0
0
1
1
0
1
0
1
VIN0
VIN1
VIN2
VIN2
GATE A GATE B
DIGITAL
OUTPUT
output
<
255
output
>
255
output
<
248
output
>
248
output
<
0
0 < output <
248
output > 248
I
AGC
MODE
(2)
1
1
2.5
μ
A
I
AGCM
0
μ
A
I
AGCM
+2.5
μ
A
2.5
μ
A
1
1
2
2
2
2
0
X
(1)
1
0
I
AGCM
2
Table 3
CLAMP output current.
Note
1.
X = don't care.
Table 4
OF input coding.
Note
1.
Use C
10 pF to DGND.
GATE A GATE B
DIGITAL
OUTPUT
output
<
0
output
>
0
X
(1)
output
<
64
64 < output
I
CLAMP
MODE
1
1
I
CLAMPM
2.5
μ
A
0
μ
A
+50
μ
A
50
μ
A
1
1
2
2
2
X
(1)
0
0
1
OF
D0 TO D7
0
1
active, two's complement
high impedance
active, binary
open circuit
(1)
Table 5
Output coding and input voltage (typical values).
STEP
V
ADCIN
BINARY OUTPUTS
TWO'S COMPLEMENT
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Underflow
0
1
.
.
254
255
Overflow
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
1
.
.
0
1
1
1
1
1
.
.
0
0
0
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
0
.
.
1
1
1
0
0
1
.
.
0
1
1
V
CCA
2.41 V
V
CCA
1.41 V
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