AK4705VQ

AK4705VQ Datasheet

[AK4705]

Part	Datasheet
AK4705VQ	AK4705VQ (pdf)

PDF Datasheet Preview
[AK4705] AK4705 2ch 24bit DAC with AV SCART Switch GENERAL DESCRIPTION The AK4705 offers the ideal features for digital set-top-box systems. Using AKM's multi-bit architecture for its modulator, the AK4705 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4705 integrates a combination of SCF and CTF filters, removing the need for high cost external filters and increasing performance for systems with excessive clock jitter. The AK4705 also including the audio switches, volumes, video switches, video filters, etc. designed primarily for digital set-top-box systems. The AK4705 is offered in a space saving 48-pin LQFP package. DAC Sampling Rates Ranging from 32kHz to 50kHz 64dB High Attenuation 8x FIR Digital Filter 2nd Order Analog LPF On Chip Buffer with Single-Ended Output Digital for 32k, 44.1k and 48kHz Sampling I/F Format 24bit MSB Justified, I2S, 18/16bit LSB Justified Master Clock 256fs, 384fs High Tolerance to Clock Jitter Analog Switches for SCART Audio Section THD+N Dynamic Range 96dB Stereo Analog Volume with Pop-noise Free Circuit +6dB to & Mute Analog Inputs Two Stereo Inputs TV&VCR SCART One Stereo Input Changeover to Internal DAC Analog Outputs Two Stereo Outputs TV, VCR SCART One Mono Output Modulator Pop Noise Free Circuit for Power On/Off Video Section Integrated LPF 75ohm Driver 6dB Gain for Outputs Adjustable Gain Four CVBS/Y Inputs ENCx2, TV, VCR , Three CVBS/Y Outputs RF, TV, VCR Three R/C Inputs ENCx2, VCR , Two R/C outputs TV, VCR Bi-Directional Control for VCR-Red/Chroma Two G and B Inputs ENC, VCR , One G and B Outputs TV Y/Pb/Pr Option to 6MHz VCR Input Monitor Mode for Standby Mode for Power Saving SCART Pin#16 Fast Blanking , Pin#8 Slow Blanking Control AK4702/04 Software Compatible MS0451-E-01 -1- 2007/06 Power Supply and Low Power Dissipation / Low Power Standby Mode Package Small 48-pin LQFP [AK4705] MS0451-E-01 -2- 2007/06 VD VP VSS MCLK BICK LRCK SDTI VCRINL VCRINR TVINL -6dB/0dB/ +2.44/+4dB Volume #0 +6 to -60dB 2dB/step Volume #1 TV1/0 MONO TVINR SCK SDA PDN VD VP VSS NC DACL DACR NC VCRINL VCRINR TVINL Register Control Bias Mute VCR1/0 Audio Block DAPD=“0” VMONO 0dB/+6dB +6 to -60dB 2dB/step Volume #2 Volume #1 TV1/0 MONO TVINR SCK SDA PDN Register Control Bias Mute • Ordering Guide AK4705 • Pin Layout -10 ~ +70°C 48pin LQFP 0.5mm pitch [AK4705] VCRINR VCRINL TVIN R TVIN L VCROUTR VCROUTL TVOUTR TVOUTL MONOOU T DVCOM VP PVCOM MCLK BICK SDTI LRCK VCRVOUT TVFB AK4705VQ Top View TVSB VCRSB VCRB VCRG VCRRC VCRFB VCRVIN TVVIN ENCY ENCV ENCC ENCRC ENCG ENCB REFI VVD1

PDF Datasheet Preview

[AK4705]

AK4705
2ch 24bit DAC with AV SCART Switch

GENERAL DESCRIPTION The AK4705 offers the ideal features for digital set-top-box systems. Using AKM's multi-bit architecture for its modulator, the AK4705 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4705 integrates a combination of SCF and CTF filters, removing the need for high cost external filters and increasing performance for systems with excessive clock jitter. The AK4705 also including the audio switches, volumes, video switches, video filters, etc. designed primarily for digital set-top-box systems. The AK4705 is offered in a space saving 48-pin LQFP package.

DAC Sampling Rates Ranging from 32kHz to 50kHz 64dB High Attenuation 8x FIR Digital Filter 2nd Order Analog LPF On Chip Buffer with Single-Ended Output Digital for 32k, 44.1k and 48kHz Sampling I/F Format 24bit MSB Justified, I2S, 18/16bit LSB Justified Master Clock 256fs, 384fs High Tolerance to Clock Jitter

Analog Switches for SCART Audio Section THD+N Dynamic Range 96dB Stereo Analog Volume with Pop-noise Free Circuit +6dB to & Mute Analog Inputs Two Stereo Inputs TV&VCR SCART One Stereo Input Changeover to Internal DAC Analog Outputs Two Stereo Outputs TV, VCR SCART One Mono Output Modulator Pop Noise Free Circuit for Power On/Off Video Section Integrated LPF 75ohm Driver 6dB Gain for Outputs Adjustable Gain Four CVBS/Y Inputs ENCx2, TV, VCR , Three CVBS/Y Outputs RF, TV, VCR Three R/C Inputs ENCx2, VCR , Two R/C outputs TV, VCR Bi-Directional Control for VCR-Red/Chroma Two G and B Inputs ENC, VCR , One G and B Outputs TV Y/Pb/Pr Option to 6MHz VCR Input Monitor Mode for Standby Mode for Power Saving SCART Pin#16 Fast Blanking , Pin#8 Slow Blanking Control

AK4702/04 Software Compatible

MS0451-E-01 -1-
2007/06

Power Supply and Low Power Dissipation / Low Power Standby Mode

Package Small 48-pin LQFP
[AK4705]

MS0451-E-01 -2-
2007/06

VD VP VSS

MCLK BICK LRCK SDTI

VCRINL VCRINR

TVINL
-6dB/0dB/ +2.44/+4dB

Volume #0
+6 to -60dB 2dB/step

Volume #1 TV1/0

MONO

TVINR SCK SDA PDN

VD VP VSS

NC DACL DACR NC

VCRINL VCRINR TVINL

Register Control

Bias Mute

VCR1/0

Audio Block DAPD=“0”

VMONO
0dB/+6dB
+6 to -60dB 2dB/step

Volume #2

Volume #1 TV1/0

MONO

TVINR

SCK SDA PDN

Register Control

Bias Mute
• Ordering Guide

AK4705
• Pin Layout
-10 ~ +70°C
48pin LQFP 0.5mm pitch
[AK4705]

VCRINR

VCRINL

TVIN R

TVIN L

VCROUTR

VCROUTL

TVOUTR

TVOUTL

MONOOU T

DVCOM VP

PVCOM

MCLK

BICK

SDTI

LRCK

VCRVOUT

TVFB

AK4705VQ

Top View

TVSB

VCRSB

VCRB

VCRG

VCRRC

VCRFB

VCRVIN

TVVIN

ENCY

ENCV

ENCC

ENCRC

ENCG

ENCB

REFI

VVD1

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Datasheet ID: AK4705VQ 515895