AK4703 Datasheet, PDF (9/38 Pages) Asahi Kasei Microsystems – AV SCART switch

ASAHI KASEI
AKM CONFIDENTIAL
[AK4703]
ANALOG CHARACTERISTICS (VIDEO)
(Ta = 25°C; VP = 12V, VD = 5V; VVD1 = VVD2 = 5V; unless otherwise specified.)
Parameter
Conditions
min
Sync Tip Clamp Voltage
at output pin.
Chrominance Bias Voltage at output pin.
Gain
Input = 0.3Vp-p, 100kHz
5.5
Interchannel Gain Mismatch TVRC, TVG, TVB. Input = 0.3Vp-p, 100kHz.
−0.3
Frequency Response
Input=0.3Vp-p, C1=C2=0pF. 100kHz to 6MHz.
at 12MHz.
−1.0
at 27MHz.
Group Delay Distortion
At 4.43MHz with respect to 1MHz.
Input Impedance
Chrominance input (internally biased)
40
Input Signal
f = 100kHz, maximum with distortion < 1.0%,
gain = 6dB.
-
Load Resistance
(Note 12)
150
Load Capacitance
C1 (Note 12)
C2 (Note 12)
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.
-
typ
0.7
2.2
6
-
−3
−35
60
-
-
-
−50
74
TBD
TBD
max
6.5
0.3
0.5
TBD
15
-
1.5
-
400
15
3
-
-
-
-
Units
V
V
dB
dB
dB
dB
dB
ns
kΩ
Vpp
Ω
pF
pF
Vpp
dB
dB
%
Degree
Note 12. Refer the Figure 1.
Video Signal Output
C2
R1
75 ohm
C1
R2
75 ohm
max: 15pF
max: 400pF
Figure 1. Load Resistance R1+R2 and Load Capacitance C1/C2.
Rev. 0.1
2004/03
-9-