AD725 查看數據表（PDF） - Analog Devices
零件编号
产品描述 (功能)
生产厂家
AD725 Datasheet PDF : 20 Pages
| |||
AD725–SPECIFICATIONS (Unless otherwise noted, VS = +5, TA = +25؇C, using 4FSC synchronous clock. All loads are
150 ⍀ ؎ 5% at the IC pins. Outputs are measured at the 75 ⍀ reverse terminated load.)
Parameter
SIGNAL INPUTS (RIN, GIN, BIN)
Input Amplitude
Black Level1
Input Resistance2
Input Capacitance
Conditions
Full Scale
RIN, GIN, BIN
Min Typ Max Units
714 mV p-p
0.8
V
1
MΩ
5
pF
LOGIC INPUTS (HSYNC, VSYNC, 4FSC, CE, STND)
Logic Low Input Voltage
Logic High Input Voltage
Logic Low Input Current (DC)
Logic High Input Current (DC)
VIDEO OUTPUTS3
Luminance (LUMA)
Bandwidth, –3 dB
Gain Error
Nonlinearity
Sync Level
DC Black Level
Luminance Trap (YTRAP)
Output Resistance
DC Black Level
Chrominance (CRMA)
Bandwidth, –3 dB
Color Burst Amplitude
Color Burst Width
Chroma Level Error4
Chroma Phase Error5
DC Black Level
Chroma Feedthrough
Composite (COMP)
Absolute Gain Error
Differential Gain
Differential Phase
DC Black Level
Chroma/Luma Time Alignment
TTL Logic Levels
2
1V
V
1
µA
1
µA
NTSC
PAL
max p-p
NTSC
PAL
4.4
MHz
5.2
MHz
–7 –2 +7 %
0.3
%
252 279 310 mV
264 291 325 mV
1.3
V
1.0
kΩ
1.0
V
NTSC
PAL
NTSC
PAL
NTSC
PAL
R, G, B = 0
1.2
MHz
1.5
MHz
206 255 305 mV p-p
221 291 362 mV p-p
2.51
µs
2.28
µs
–4
%
±3
Degrees
2.0
V
15 40 mV p-p
With Respect to Luma –5
With Respect to Chroma
With Respect to Chroma
S-Video
–1 +3
0.5
1.5
1.4
20
%
%
Degrees
V
ns
POWER SUPPLIES
Recommended Supply Range
Quiescent Current—Encode Mode
Quiescent Current—Power Down
Single Supply
+4.75
30
<1
+5.25 V
36 mA
µA
NOTES
1R, G, and B signals are inputted via an external ac coupling capacitor.
2Except during dc restore period (back porch clamp).
3All outputs measured at a 75 Ω reverse-terminated load; ac voltages at the IC output pins are twice those specified here.
4Difference between ideal and actual color bar subcarrier amplitudes.
5Difference between ideal and actual color bar subcarrier phases.
Specifications are subject to change without notice.
–2–
REV. 0
Share Link: 