ASAHI KASEI
[AK4250/52]
= Preliminary =
AK4250/52
Output Coupling Capacitor-less Video Amp with LPF
GENERAL DESCRIPTION
The AK4250/52 are a Video Amp with LPF. The output coupling capacitor can be removed because the
AK4250/52 include the negative power supply circuit. The AK4250/52 are housed in a space-saving 8-pin
USON package.
FEATURE
1. Video Function
•
A Composite Video Input
•
A Video-Amp for Composite Video Signal
AK4250: +6dB
Ak4252: +12dB
•
Low Pass Filter
•
Charge pump circuit for negative power supply
2. Ta = -40
∼
85
°C
3. Power Supply: 2.7
∼
3.6V (typ. 3.0V)
4. Power Supply Current: 10 mA
5. Package: 8 pin USON
Block Diagram
PDN
VIN
Clamp
LPF
VOUT
VDD
Charge
Pump
Clock
Generator
CP
CN
VSS
VEE
Figure 1. AK4250/52 Block Diagram
Rev.0.4
-1-
2006/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
