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AK4352

Asahi Kasei Microsystems
Part Number AK4352
Manufacturer Asahi Kasei Microsystems
Description 2V & Low Power Multi-Bit DAC
Published Mar 23, 2005
Detailed Description ASAHI KASEI [AK4352] AK4352 2V & Low Power Multi-Bit ∆Σ DAC GENERAL DESCRIPTION The AK4352 is an 18bit low voltage & p...
Datasheet PDF File AK4352 PDF File

AK4352
AK4352

Overview
ASAHI KASEI [AK4352] AK4352 2V & Low Power Multi-Bit ∆Σ DAC GENERAL DESCRIPTION The AK4352 is an 18bit low voltage & power stereo DAC for digital audio system.
The AK4352 uses the new developed Multi-Bit ∆Σ architecture, this new architecture achieves DR=94dB at low voltage operation.
The AK4352 includes post filter with single-ended output and does not need any external parts.
The AK4352 is suitable for the portable audio system like MD, etc as low power and small package.
FEATURES • Multi-Bit ∆Σ DAC • Sampling Rate Ranging: 8kHz ∼ 50kHz • On chip post filter • On chip Buffer with Single-ended Output • On chip Perfect filtering 8 times FIR interpolator Passband: 20kHz Passband Ripple: ± 0.
06dB Stopband Attenuation: 43dB • Digital Audio I/F format: 2’s compliment, MSB first 18bit MSB justified, 16/18bit LSB justified, I2S • Digital de-emphasis for 44.
1kHz sampling • Master clock: 256fs or 384fs • THD+N: -83dB@2V, -89dB@3V • D-Range: 94dB@2V, 96dB@3V • Output Voltage: 1.
10Vpp@2V • Low Voltage Operation: 2V (1.
8 ∼ 3.
6V) • Low power Dissipation: 6mW@2V • Very Small Package: 16pin TSSOP DIF0 DIF1 LRCK BICK SDATA VDD VSS PD Serial Input Interface 8X Interpolator ∆Σ Modulator De-emphasis Control 8X Interpolator ∆Σ Modulator Clock Divider LPF LPF VCML AOUTL AOUTR VCMR DEM MCLK CKS VREF M0040-E-02 -1- 2000/11 ASAHI KASEI [AK4352] n Ordering Guide AK4352VT AKD4352 n Pin Layout MCLK PD BICK SDATA LRCK DIF0 DIF1 DEM -40 ∼ +85°C Evaluation Board 16pin TSSOP (0.
65mm pitch) 1 16 CKS 2 15 VCML 3 14 AOUTL 4 Top 13 AOUTR View 5 12 VCMR 6 11 VREF 7 10 VDD 8 9 VSS PIN/FUNCTION No.
Pin Name 1 MCLK 2 PD 3 BICK 4 SDATA 5 LRCK 6 DIF0 7 DIF1 8 DEM 9 VSS 10 VDD 11 VREF 12 VCMR 13 AOUTR 14 AOUTL 15 VCML 16 CKS I/O Function I Master Clock Pin Power-Down Pin I When at “L”, the AK4352 is in power-down mode and is held in reset.
The AK4352 should always be reset upon power-up.
I Serial Bit Input Clock Pin This clock is used to latch audio data.
I Audio D...


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