PDF AK5388 Data sheet ( Hoja de datos )

Número de pieza	AK5388
Descripción	120dB 24-bit 192kHz 4-Channel ADC
Fabricantes	AKM
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No Preview Available ! [AK5388] AK5388 120dB 24-bit 192kHz 4-Channel ADC GENERAL DESCRIPTION The AK5388 is a 24bit, 216kHz sampling 4-channel A/D converter for high-end audio systems. The modulator in the AK5388 uses AKM’s Enhanced Dual Bit architecture, enabling the AK5388 to realize high accuracy and low cost. The AK5388 achieves 120dB dynamic range and 110dB S/(N+D), and an optional mono mode extends dynamic range to 123dB. The AK5388’s digital filter features a modified FIR architecture that minimizes group delay while maintaining excellent linear phase response. So the device is suitable for professional audio applications including recording, sound reinforcement, effects processing, sound cards, and high-end A/V receivers. The AK5388 is available in 44pin LQFP package. FEATURES Sampling Rate: 8kHz ~ 216kHz Full Differential Inputs S/(N+D): 110dB DR, S/N: 120dB(Mono Mode: 123dB) Short Delay Digital Filter (GD=12.6/fs) • Passband: 0~21.648kHz (@fs=48kHz) • Ripple: 0.01dB • Stopband: 80dB Digital HPF Power Supply: 4.75 ~ 5.25V(Analog), 3.0 ~ 3.6V(Digital) Output format: 24bit MSB justified, I2S or TDM Cascade TDM I/F: 8ch/48kHz, 4ch/96kHz, 4ch/192kHz Master & Slave Mode Overflow Flag Power Dissipation: 575 mW (@fs=48kHz) Package: 44pin LQFP AVDD1 VSS1 AVDD2 VSS6 DVDD1 VSS3 DVDD2 VSS4 VSS5 LIN1+ LIN1- RIN1+ RIN1- LIN2+ LIN2- RIN2+ RIN2- VCOM1 VCOM2 ΔΣ Modulator ΔΣ Modulator ΔΣ Modulator ΔΣ Modulator Decimation Filter Decimation Filter Decimation Filter Decimation Filter Voltage Reference Audio Interface Clock Divider LRCK BICK SDTO1 SDTO2 TDMIN MSN DIF TDM0 TDM1 HPF MONO MCLK VREFP1 VREFL1 VREFP2 VREFL2 OVF PDN CKS0 CKS2 CKS2 MS1096-E-01 -1- 2009/08 1 page [AK5388] ■ Handling of Unused Pin The unused I/O pins should be processed appropriately as below. Classification Analog Digital Pin Name LIN1+/−, RIN1+/− LIN2+/−, RIN+/− OVF TEST1 TEST2 TEST3 Setting These pins should be connected to VSS1-6 These pins should be connected to VSS1-6 This pin should be open. This pin should be connected to VSS1-6 This pin should be connected to VSS1-6 This pin should be connected to VSS1-6 (VSS1-6=0V; Note 1) ABSOLUTE MAXIMUM RATINGS Parameter Symbol min Power Supplies: Analog Analog AVDD1 AVDD2 −0.3 −0.3 Digital DVDD1 −0.3 Digital Output Buffer DVDD2 −0.3 Input Current, Any Pin Except Supplies Analog Input Voltage (Note 2) Digital Input Voltage (Note 3) Ambient Temperature (power applied) Storage Temperature IIN VINA VINA VIND VIND Ta Tstg − −0.3 −0.3 −0.3 −0.3 −10 −65 max 6.0 6.0 6.0 6.0 ±10 AVDD1+0.3 AVDD2+0.3 DVDD1+0.3 DVDD2+0.3 70 150 Units V V V V mA V V °C °C Note 1. All voltages with respect to VSS1-6 pins. Note 2. VREFP1, VREFP2, VREFL1, VREFL2, AINL1/2+, AINL1/2-, AINR1/2+ and AINR1/2- pins Note 3. PDN, CKS0, CKS1, CKS2, TDMIN, MCLK, BICK, LRCK, DIF, TDM0, TDM1, HPFE, MONO and TST1/2/3 pins WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. MS1096-E-01 -5- 2009/08 5 Page [AK5388] Parameter Audio Interface Timing (Slave mode) Normal mode (TDM1=“L”, TDM0=“L”) BICK Period Normal Speed Mode Double , Quad Speed Mode Duty Cycle LRCK Edge to BICK “↑” (Note 14) BICK “↑” to LRCK Edge (Note 14) LRCK to SDTO1/2 (MSB) (Except I2S mode) BICK “↓” to SDTO1/2 TDM256 mode (TDM1=“L”, TDM0=“H”) BICK Period Duty Cycle LRCK Edge to BICK “↑” BICK “↑” to LRCK Edge (Note 14) (Note 14) BICK “↓” to SDTO1/2 (Note 15) TDMIN Setup time TDM128 mode (TDM1=“H”, TDM0=“H”) (8KHz ≤ fs < 108KHz) BICK Period Duty Cycle LRCK Edge to BICK “↑” (Note 14) BICK “↑” to LRCK Edge (Note 14) BICK “↓” to SDTO1 (Note 15) TDM128 mode (TDM1=“H”, TDM0=“H”) (108KHz < fs ≤ 216KHz) BICK Period Duty Cycle LRCK Edge to BICK “↑” (Note 14) BICK “↑” to LRCK Edge (Note 14) SDTO1 Setup time BICK “↑ “ (Note 15) SDTO1 Hold time BICK “↑ “ (Note 15) Symbol TBCK TBCK Duty tLRB tBLR tLRS tBSD tBCK Duty tLRB tBLR tBSD tTDMS tBCK Duty tLRB tBLR tBSD tBCK Duty tLRB tBLR tBSS tBSH min 1/128fs 1/64fs 40 20 20 1/256fs 40 20 20 16 1/128fs 40 20 20 1/128fs 40 10 10 10 5 typ max Units ns ns 60 % ns ns ns 20 ns ns 60 % ns ns 20 ns ns ns 60 % ns ns 20 ns ns 60 % ns ns ns ns MS1096-E-01 - 11 - 2009/08 11 Page

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