參數(shù)資料
型號(hào)： AK4706
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2ch 24bit DAC with AV Switch & HD/SD Video Filter
中文描述： 2通道24位DAC，帶有AV系列開(kāi)關(guān)
文件頁(yè)數(shù)： 15/53頁(yè)
文件大?。?/td> 597K
代理商： AK4706
ASAHI KASEI
[AK4706]
MS0507-E-00
2006/05
- 15 -
ANALOG CHARACTERISTICS (SD VIDEO)
(Ta = 25
°
C; VP=12V, VD1=VD2=5V; VVD1=VVD2=VVD3=VVD4=5V; VVOL1/0= “00”, unless otherwise
specified.)
Parameter
Conditions
Sync Tip Clamp Voltage
at output pin.
Chrominance Bias Voltage
at output pin.
R/G/B Clamp Voltage
at output pin.
Pb/Pr Clamp Voltage
at output pin.
Gain
Input=0.3Vp-p, 100kHz
VVOL1/0= “00”
VVOL1/0= “01”
VVOL1/0= “10”
VVOL1/0= “11”
Interchannel Gain Mismatch
TVRC, TVG, TVB. Input=0.3Vp-p, 100kHz
Frequency Response
Input=0.3Vp-p, C1=C2=0pF. 100kHz to 6MHz.
at 10MHz.
at 27MHz.
Group Delay Distortion
At 4.43MHz with respect to 1MHz.
Input Impedance
Chrominance input (internally biased)
Input Signal
f=100kHz, distortion < 1.0%, gain=6dB
Load Resistance
(Note 18)
Load Capacitance
C1 (Note 18)
C2 (Note 18)
Dynamic Output Signal
f=100kHz, distortion < 1.0%
Y/C Crosstalk
f=4.43MHz, 1Vp-p input. Among TVVOUT,
TVRC, VCRVOUT and VCRC outputs.
S/N
Reference Level = 0.7Vp-p, CCIR 567 weighting.
BW= 15kHz to 5MHz.
Differential Gain
0.7Vpp 5steps modulated staircase.
chrominance &burst are 280mVpp, 4.43MHz.
Differential Phase
0.7Vpp 5steps modulated staircase.
chrominance &burst are 280mVpp, 4.43MHz.
Note 18. Refer the Figure 1.
min
typ
0.7
2.2
0.7
2.2
6
6
7.2
8.2
9.1
-
-3
-40
60
-
-
max
6.5
6.5
7.7
8.7
9.6
0.5
0.5
-25
15
-
1.5
-
400
15
3
-
Units
V
V
V
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
k
Vpp
pF
pF
Vpp
dB
5.5
5.5
6.7
7.7
8.6
-0.5
-1.0
RGB Gain
Input=0.3Vp-p,
100kHz
40
-
150
-
-
-
-50
-
74
-
dB
-
+0.3
-
%
-
+0.6
-
Degree
Video Signal Output
75
75
max: 400pF
C1
R1
R2
max: 15pF
C2
Figure 1. Load Resistance R1+R2 and Load Capacitance C1/C2.
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