(Unless otherwise noted, VS = +5, T
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� AD724JRZ-R7
寤犲晢锛� Analog Devices Inc
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 8/15闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC ENCODER RGB TO NTSC 16SOIC TR
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 400
椤炲瀷锛� 瑕栭牷绶ㄧ⒓鍣�
鎳�(y墨ng)鐢細 RGB 鑷� NTSC/PAL
闆诲 - 闆绘簮锛屾暩(sh霉)瀛楋細 4.75 V ~ 5.25 V
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 16-SOIC锛�0.295"锛�7.50mm 瀵級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 16-SOIC W
鍖呰锛� 甯跺嵎 (TR)
AD724鈥揝PECIFICATIONS
REV. B
鈥�2鈥�
(Unless otherwise noted, VS = +5, TA = +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 (RIN, GIN, BIN)
Input Amplitude
Full Scale
714
mV p-p
Black Level
1
0.8
V
Input Resistance
2
RIN, GIN, BIN
1
M
Input Capacitance
5pF
LOGIC INPUTS (HSYNC, VSYNC, FIN, ENCD, STND, SELECT)
CMOS Logic Levels
Logic LO Input Voltage
1V
Logic HI Input Voltage
2V
Logic LO Input Current (DC)
<1
A
Logic HI Input Current (DC)
<1
A
VIDEO OUTPUTS
3
Luminance (LUMA)
Roll-Off @ 5 MHz
NTSC
鈥�7
dB
PAL
鈥�6
dB
Gain Error
鈥�15
鈥�3
+15
%
Nonlinearity
卤0.3
%
Sync Level
NTSC
243
286
329
mV
PAL
300
mV
DC Black Level
1.3
V
Chrominance (CRMA)
Bandwidth
NTSC
3.6
MHz
PAL
4.4
MHz
Color Burst Amplitude
NTSC
170
249
330
mV p-p
PAL
288
mV
Color Signal to Burst Ratio Error4
卤5%
Color Burst Width
NTSC
2.51
s
PAL
2.28
s
Phase Error5
卤3
Degrees
DC Black Level
2.0
V
Chroma Feedthrough
R, G, B = 0
15
40
mV p-p
Composite (COMP)
Absolute Gain Error
With Respect to Luma
鈥�5
卤15
%
Differential Gain
With Respect to Chroma
0.5
%
Differential Phase
With Respect to Chroma
2.0
Degrees
DC Black Level
1.5
V
Chroma/Luma Time Alignment
0ns
POWER SUPPLIES
Recommended Supply Range
Single Supply
+4.75
+5.25
V
Quiescent Current鈥擡ncode Mode
33
42
mA
Quiescent Current鈥擯ower Down
1
mA
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
reverse-terminated load; ac voltages at the IC output pins are twice those specified here.
4Ratio of chroma amplitude to burst amplitude, difference from ideal.
5Difference between ideal color-bar phases and the actual values.
6Driving the logic inputs with VOH < 4 V will increase static supply current approximately 150
A per input.
Specifications are subject to change without notice.
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
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