參數(shù)資料
型號: TDA8501T
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉換
英文描述: PAL/NTSC encoder
中文描述: COLOR SIGNAL ENCODER, PDSO24
封裝: PLASTIC, SOT-137AH1, 24 PIN
文件頁數(shù): 15/30頁
文件大?。?/td> 238K
代理商: TDA8501T
April 1993
15
Philips Semiconductors
Preliminary specification
PAL/NTSC encoder
TDA8501
AC CHARACTERISTICS
V
CC
= 5 V; T
amb
= 25
°
C; composite sync signal connected to pin 24; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Encoder circuit
Input stage (pins 1, 3, 5, 7, 9 and 11); black level = clamping level
maximum signal
V
n(max)
from black level positive
V
n(min)
from black level negative
I
bias
input bias current
V
I
input voltage clamped
tbf
1.2
0.9
V
13
<
1
tbf
V
V
μ
A
V
only pins 1, 3 and 5
V
I
= V
13
input capacitor
connected to ground
Z
I
input clamping impedance
I
I
= 1 mA
I
O
= 1 mA
80
80
<
5
%
matrix and gain tolerance of R, G
and B signals
gain tolerance of Y,
(R
Y) and
(B
Y)
G
<
5
%
MCONTROL (pin 2; note 1)
V
IL
LOW level input voltage
Y,
(R
Y) and
(B
Y)
HIGH level input voltage
R, G and B
input current
switching time
0
0.4
V
V
IH
1
5
V
I
I
t
sw
50
3
μ
A
ns
U modulator offset control (pin 6)
V
6
I
LI
V
LL
V
HL
DC voltage control level
input leakage current
limited level voltage LOW
limited level voltage HIGH
2.5
1.8
3.2
100
V
nA
V
V
V modulator offset control (pin 12)
V
12
I
LI
V
LL
V
HL
Y
+
SYNC (pin 22 out to delay circuit)
R
O
output resistance
I
sink
maximum sink current
I
source
maximum source current
V
BL
black level output voltage
DC voltage control level
input leakage current
limited level voltage LOW
limited level voltage HIGH
2.5
1.8
3.2
100
V
nA
V
V
350
1000
2.5
<
25
μ
A
μ
A
V
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