參數資料
型號： TMS320AV420
廠商： Texas Instruments, Inc.
英文描述： Digital NTSC Encoder(數字NTSC編碼器)
中文描述： NTSC制式的數字編碼器（數字NTSC制式編碼器）
文件頁數： 16/18頁
文件大?。?/td> 487K
代理商： TMS320AV420
TMS320AV420
DIGITAL NTSC ENCODER
SCSS015A – AUGUST 1994 – REVISED SEPTEMBER 1995
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog supply voltage range, V
CCA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to 6 V
–0.5 V to 6 V
–0.5 V to V
CC
+ 0.5 V
–0.5 V to V
CC
+ 0.5 V
±
20 mA
–10
°
C to 70
°
C
–65
°
C to 150
°
C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
MIN
TYP
MAX
UNIT
VCC
VCCA
VREF
Supply voltage
4.75
5
5.25
V
Analog supply voltage
4.75
5
5.25
V
D/A reference voltage
3
V
VIH
VIL
IOH
IOL
fclock
High-level input voltage
2
V
Low-level input voltage
0.8
V
High-level output current
–1
mA
Low-level output current
1
mA
Clock frequency
–
27
–
MHz
Rext
D/A output resistor
YOUT, COUT
200
D/A reference resistor
IREF, IREFC
1600
Cext
D/A compensation capacitance
COMPY, COMPC
1
μ
F
D/A bias capacitance
BIASY, BYASC
0.1
TA
Operating temperature range
–10
25
70
°
C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
VOL
VO
II
ICC
ICCA
Ci
High-level output voltage
IOH = 1 mA
IOL = –1 mA
VCC–0.8
V
Low-level output voltage
0.5
V
Output voltage
YOUT, COUT
VREF
VCC
V
μ
A
mA
Input current
VCC = 5.25 V,
VCC = 5.25 V
VCC = 5.25 V
f = 1 MHz
VI = 0 to VCC
1
Supply current
30
Analog supply current
With ROUT
30
mA
Input capacitance
8
pF
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