參數(shù)資料
型號(hào): AD722
廠商: Analog Devices, Inc.
英文描述: RGB to NTSC/PAL Encoder(RGB與NTSC/PAL制式轉(zhuǎn)換編碼器)
中文描述: RGB到的NTSC / PAL編碼器(與的RGB的NTSC / PAL制式轉(zhuǎn)換編碼器)
文件頁(yè)數(shù): 2/12頁(yè)
文件大?。?/td> 319K
代理商: AD722
AD722–SPECIFICATIONS
REV. 0
–2–
(Unless otherwise noted, V
S
= +5, T
A
= +25
°
C, using FSC synchronous clock. All loads are
150
±
5% at the IC pins. Outputs are measured at the 75
reverse terminated load.)
Parameter
Conditions
Min
Typ
Max
Units
SIGNAL INPUTS (RDIN, GRIN, BLIN)
Input Amplitude
NTSC
PAL
714
700
3
mV p-p
mV p-p
V
M
pF
Black Level
Input Resistance
1
Input Capacitance
0
1
Red, Green, Blue
5
LOGIC INPUTS (SYNC, FSC, ENCD, NTSC)
Logic LO Input Voltage
Logic HI Input Voltage
Logic LO Input Current (DC)
Logic HI Input Current (DC)
CMOS Logic Levels
1
V
V
μ
A
μ
A
4
<1
<1
VIDEO OUTPUTS
2
Luminance (LUMA)
Roll-off @ 5 MHz
NTSC
PAL
–10
–7
–5
±
0.6
286
300
1.3
dB
dB
%
%
mV
mV
V
Gain Error
Linearity
Sync Level
–15
+15
NTSC
PAL
243
329
DC Black Level
Chrominance (CRMA)
Bandwidth
NTSC
PAL
NTSC
PAL
3.6
4.4
240
252
±
3
2.51
2.28
±
3
2.1
MHz
MHz
mV p-p
mV
%
μ
s
μ
s
Degrees
V
Color Burst Amplitude
170
330
Color Signal to Burst Ratio Error
Color Burst Width
–15
15
NTSC
PAL
Phase Error
3
DC Black Level
Chroma Feedthrough
Chroma/Luma Time Alignment
R, G, B = 0
10
–140
40
mV p-p
ns
Composite (COMP)
Absolute Gain Error
Differential Gain
Differential Phase
DC Black Level
–5
±
1
0.5
2.0
1.6
5
%
%
%
V
With Respect to Chroma
With Respect to Chroma
POWER SUPPLIES
Recommended Supply Range
Quiescent Current—Encode Mode
Quiescent Current—Power Down
Single Supply
+4.75
+5.25
40
V
mA
mA
30
1
NOTES
1
R, G, and B signals are inputted to an on-chip AC coupling capacitor.
2
All outputs measured at a 75
reverse-terminated load; voltages at the IC output pins are twice those specified here.
3
Difference between ideal color-bar phases and the actual values.
Specifications are subject to change without notice.
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