AK4223 Datasheet, PDF (8/27 Pages) Asahi Kasei Microsystems – 6:2 Audio Switch and 6:2 Video Switch

[AK4223]
ANALOG CHARACTERISTICS (Video)
(Ta = 25°C; AVDD= RVDD= VVDD= 9.0V; VSS1= VSS2 = 0V; VGAIN= +6dB, VGCA=0dB; VR1/2 bit=“0”; unless
otherwise specified.)
Parameter
Conditions
min typ max Units
Sync tip clamp level
VGAIN=+3dB, +6dB
200 mV
(Note 11)
VGAIN=-3dB, 0dB
500 mV
Gain
VGCA=+1dB 6dB
-
7
-
dB
Input=0.3Vp-p, 100kHz
3dB
-
4
-
dB
0dB
-
1
-
dB
-3dB
-
-2
-
dB
VGCA=0dB
6dB
5.6
6
6.4
dB
3dB
2.6
3
3.4
dB
0dB
-0.4
0
0.4
dB
-3dB
-3.4
-3
-2.6
dB
VGCA=-1dB
6dB
-
5
-
dB
3dB
-
2
-
dB
0dB
-
-1
-
dB
-3dB
-
-4
-
dB
VGCA step
-
0.1
-
dB
Frequency Response
Response at 6MHz
-1.0
+1.0 dB
Input=0.3Vpp, Sin Wave Response at 27MHz
-
-35
-
dB
(0dB at 100kHz)
Group Delay Distortion |GD3MHz – GD6MHz|
10
40
ns
Input Impedance
300
kΩ
Input Signal
1.5 Vpp
Inter channel Isolation
f=4.43MHz, 1Vpp input
-
52
dB
S/N
Reference Level = 0.7Vp-p,
-
65
dB
BW= 100kHz to 6MHz.
Differential Gain
0.7Vpp 5steps modulated staircase.
+0.4
-
%
Chrominance & burst are 280mVpp, 4.43MHz.
Differential Phase
0.7Vpp 5steps modulated staircase.
+1
- Degree
Chrominance & burst are 280mVpp, 4.43MHz.
Load Resistance
VR1/2 bit = “0”, R1+R2 (Figure 4)
140 150 160
Ω
VR1/2 bit = “1”, R1 (Figure 5)
100
-
-
kΩ
Load Capacitance
VR1/2 bit = “0”, (Figure 4)
C1
1.5
nF
C2
15
pF
VR1/2 bit = “1”, (Figure 5)
C1+C2
15
pF
CMRR
f=20kHz, 1Vp-p input
34
55
dB
Note 11. At the measurement point A in Figure 3. Idling DC output level is 200mV(max) when VGAIN=+6dB or +3db,
and 500mV(max) when VGAIN=0dB or -3dB.
VOUT
Measurment point A
75Ω
75Ω
Pedestal Volltage
a
0V
a: 100mV(max): VGAIN=+3dB, +6dB
Figure 3. Measurement Point
MS1251-E-00
8
2010/10