參數(shù)資料
型號: AK4704
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): 12/44頁
文件大小: 440K
代理商: AK4704
ASAHI KASEI
AKM CONFIDENTIAL
[AK4704]
Rev. 0.5
2004/1
- 12 -
ANALOG CHARACTERISTICS (VIDEO)
(Ta = 25
°
C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; VVOL1/0= “00”, YC=“0” unless specified.)
Parameter
Sync Tip Clamp Voltage
at output pin.
Chrominance Bias Voltage
at output pin.
Gain
Input=0.3Vp-p, 100kHz
RGB Gain
Input=0.3Vp-p,
100kHz
Conditions
min
5.5
5.5
6.7
7.7
8.6
-0.3
-1.0
typ
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
0.3
0.5
-35
15
-
1.5
Units
V
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
kohm
Vpp
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 12MHz.
at 27MHz.
Group Delay Distortion
At 4.43MHz with respect to 1MHz.
Input Impedance
Chrominance input (internally biased)
Input Signal
f=100kHz, maximum with distortion < 1.0%,
gain=6dB.
Load Resistance
(Note: 16)
Load Capacitance
C1 (Note: 16)
C2 (Note: 16)
Dynamic Output Signal
f=100kHz, maximum with 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: 16. Refer the Figure 1.
40
-
150
-
-
ohm
pF
pF
Vpp
dB
400
15
3
-
-
-
-
-50
-
74
-
dB
-
TBD
-
%
-
TBD
-
Degree
Video Signal Output
75 ohm
75 ohm
max: 400pF
C1
R1
R2
max: 15pF
C2
Figure 1. Load Resistance R1+R2 and Load Capacitance C1/C2.
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