參數(shù)資料
型號: AK4705
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 2ch 24bit DAC with AV SCART Switch
中文描述: 2通道24位DAC,具有影音SCART開關(guān)
文件頁數(shù): 14/50頁
文件大小: 660K
代理商: AK4705
[AK4705]
MS0451-E-01
2007/06
- 14 -
ANALOG CHARACTERISTICS (VIDEO)
(Ta = 25
°
C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; VVOL1/0= “00” unless specified.)
Parameter
Sync Tip Clamp Voltage
at output pin.
Chrominance Bias Voltage
at output pin.
Pb/Pr Clamp Voltage
at output pin.
Gain
Input=0.3Vp-p, 100kHz
RGB Gain
Input=0.3Vp-p,
100kHz
Conditions
min
typ
0.7
2.2
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
Units
V
V
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
k
Ω
Vpp
5.5
5.5
6.7
7.7
8.6
-0.5
-1.0
VVOL1/0= “00”
VVOL1/0= “01”
VVOL1/0= “10”
VVOL1/0= “11”
Interchannel Gain Mismatch
Frequency Response
TVRC, TVG, TVB. Input=0.3Vp-p, 100kHz.
Input=0.3Vp-p, C1=C2=0pF. 100kHz to 6MHz.
at 10MHz.
at 27MHz.
At 4.43MHz with respect to 1MHz.
Chrominance input (internally biased)
f=100kHz, maximum with distortion < 1.0%,
gain=6dB.
(Figure 1)
C1 (Figure 1)
C2 (Figure 1)
f=100kHz, maximum with distortion < 1.0%
f=4.43MHz, 1Vp-p input. Among TVVOUT,
TVRC, VCRVOUT and VCRC outputs.
Reference Level = 0.7Vp-p, CCIR 567 weighting.
BW= 15kHz to 5MHz.
0.7Vpp 5steps modulated staircase.
chrominance &burst are 280mVpp, 4.43MHz.
0.7Vpp 5steps modulated staircase.
chrominance &burst are 280mVpp, 4.43MHz.
Group Delay Distortion
Input Impedance
Input Signal
40
-
Load Resistance
Load Capacitance
150
-
-
Ω
pF
pF
Vpp
dB
400
15
3
-
Dynamic Output Signal
Y/C Crosstalk
-
-
-
-50
S/N
-
74
-
dB
Differential Gain
-
+0.4
-
%
Differential Phase
-
+0.8
-
Degree
Video Signal Output
75
Ω
75
Ω
max: 400pF
C1
R1
R2
max: 15pF
C2
Figure 1. Load Resistance R1+R2 and Load Capacitance C1/C2.
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