[AK4250]
ANALOG CHRACTERISTICS
(Ta=25°C; VDD =3.0V; VSS = 0V; unless otherwise specified)
Parameter
Conditions
min
typ
max
Units
V Input Characteristics
Input Voltage
-
-
1.5
Vpp
Input Sync Chip Clamp Voltage (Note
3)
-0.386 -0.286 -0.186
V
V Output Characteristics
4)
Output Gain
VIN=100kHz, 0.2Vpp
5.0
6.0
7.0
dB
Maximum output voltage
VIN=100kHz , THD=-30dB
2.52
-
-
Vpp
-
65
-
dB
S/N
BW=100kH
∼
6MHz, (Note
5)
Secondary Distortion
VIN=3.58MHz, 0.2Vpp (Sin Wave)
-
-45
-
dB
Load Resistance
140
150
-
Ω
-
-
15
pF
Load Capacitance
C1 (Figure
2)
-
-
400
pF
C2 (Figure
2)
LPF
Frequency Response
Response at 6.75MHz
-3
-0.5
-
dB
Input= 0.2Vpp, Sin Wave
Response at 27MHz
-
-40
-20
dB
(0dB at 100kHz)
Group Delay
|GD3MHz - GD6MHz|
-
10
100
nsec
Power Supplies
Power Up
Black signal is output and no load
-
10
15
mA
resistance.
Power Down
PDN pin = 0V
-
1
2
μA
Note 3. The Charge Pump circuit will not work well, if the sync chip clamp voltage input to the VIN pin is not within this
voltage range. This sync chip clamp voltage is the voltage from the pedestal voltage
Note 4. The measurement point is the point A in
Note 5. The reference signal is the 100% white signal.
Measurement Point A
75 ohm
Video Signal Output
R1
C1
C2
R2
75 ohm
Figure 2. Load Capacitance C1 and C2
DC CHRACTERISTICS
(Ta=25°C; VDD=2.7
∼
3.6V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
Symbol
VIH
VIL
min
1.5
-
typ
-
-
max
-
0.6
Units
V
V
(PDN pin)
(PDN pin)
MS0540-E-04
-4-
2010/06
AKM [ ASAHI KASEI MICROSYSTEMS ]
