HD Video-Amp. AK4712 Datasheet

AK4712 Video-Amp. Datasheet pdf. Equivalent

Part AK4712
Description Stereo Cap-less LINE-Amp and HD Video-Amp
Feature [AK4712] AK4712 Stereo Cap-less LINE-Amp and HD Video-Amp GENERAL DESCRIPTION The AK4712 is a High D.
Manufacture Asahi Kasei Microsystems
Datasheet
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AK4712
[AK4712]
AK4712
Stereo Cap-less LINE-Amp and HD Video-Amp
GENERAL DESCRIPTION
The AK4712 is a High Definition A/V cap-less line driver. The AK4712 integrates the audio line driver,
SD/HD video filters and video drivers. Its A/V outputs are Ground-referenced and eliminate the need for
large A/V DC-blocking capacitors with a built-in Charge-pump circuit. The AK4712 achieves excellent A/V
performance by single 3.3V power supply. The AK4712 is ideal for a wide range of consumer HD
applications, such as portable A/V players, set-top boxes, and Blu-ray/DVD player systems. The AK4712
is offered in a space saving 28pin QFN package.
FEATURES
Audio section
† THD+N: 102dB (@2Vrms)
† Dynamic Range: 108dB (@2Vrms, A-weighted)
† Full Differential (or Single-ended) input for Decoder DAC
† Stereo Output for CINCH (2Vrms)
† Ground-Referenced Output Eliminates
DC-Blocking Capacitor and Mute Circuit
Video section
† Integrated LPF
SD: –40dB@27MHz
HD: –36dB@74.25MHz ,–40dB@54MHz or 27MHz selectable
† 6dB Gain for Outputs
† 4ch 75ohm driver
3ch for HD: Y/Pb/Pr
1ch for CINCH: CVBS
Power supply
† 3.3V+/5%
† Low Power Standby Mode
Package
† 28pin QFN (0.4mm pitch)
MS1509-E-00
-1-
2013/01



AK4712
Block Diagram
[AK4712]
RFB
RFB
CIN RIN
RIN
AINLN
CIN AINLP
RFB
RIN
CIN AINRP
RIN
CIN RIN
AINRN
ENCRCA
ENCY
AMP
Audio Block
DETN (Power Management)
Video
Detect
6dB
Video
Detect
6dB
TVOUTL
CINCH Audio
TVOUTR
RCAVOUT
CINCH Video
HDY
ENCPB
6dB
HDPB
HD Video
ENCPR
SCL
SDA/MUTEN
PDN
Register
Control
6dB
Video Block
Charge Pump
HDPR
I2CSEL
VVD
VD2
CP CN
VCP VCN VVEE
VREG
VEE
VD1
VSS
VSS
VSS
MS1509-E-00
-2-
2013/01





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