AK4525VF Asahi Kasei Microsystems, AK4525VF Datasheet
AK4525VF
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AK4525VF Summary of contents
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ASAHI KASEI 20Bit Stereo The AK4525 has a dynamic range of 100dB and is well-suited middle-range MD, surround system, musical instruments and car audio. Analog inputs are full-differential with single-end capability. Analog outputs are single-ended. The AK4525 has X’ tal ...
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... ASAHI KASEI n Ordering Guide AK4525VF -40 +85 C AKD4525 Evaluation Board for AK4525 n Pin Layout VREFH 1 AINR+ 2 AINR- 3 AINL+ 4 AINL AGND 7 XTI 8 XTO 9 DIF0 10 DIF1 11 LRCK 12 SCLK 13 SDTI 14 n Difference with AK4522 and AK4523 AK4522 Crystal Oscillator Not available Master Mode Not available Digital Power Supply 2 ...
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ASAHI KASEI No. Pin Name I/O 1 VREFH I Positive Voltage Reference Input Pin, VA Used as a positive voltage reference by ADC & DAC. VREFH should be connected externally to filtered VA. 2 AINR+ I Rch Analog Positive Input ...
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ASAHI KASEI (AGND, DGND=0V; Note 1) Parameter Power Supplies Analog Digital |AGND-DGND| Input Current, Any Pin Except Supplies Analog Input Voltage Digital Input Voltage Ambient Temperature (power applied) Storage Temperature Notes: 1. All voltages with respect to ground. 2. AGND ...
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ASAHI KASEI (Ta=25 C; VA, VD=5.0V; AGND=DGND=0V; VREFH=VA; fs=44.1kHz; SCLK=64fs; Signal Frequency =1kHz; 20bit Data; Measurement frequency = 10Hz Parameter ADC Analog Input Characteristics: Resolution S/(N+D) (-0.5dB Input) DR (-60dB Input, A-Weighted) S/N (A-Weighted) Interchannel Isolation Interchannel Gain Mismatch Gain ...
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ASAHI KASEI (Ta=25 C; VA=4.5 5.5V; VD=3.1 Parameter ADC Digital Filter (Decimation LPF): Passband (Note 11) -0.005dB Stopband Passband Ripple Stopband Attenuation Group Delay Group Delay Distortion ADC Digital Filter (HPF): Frequency Response (Note 11) -3dB DAC Digital Filter: Passband ...
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ASAHI KASEI (Ta=25 C; VA=4.5 5.5V; VD=3.1 Parameter Master Clock Timing 256fs 384fs 512fs MCKO Output Frequency Duty Cycle Rise Time Fall time LRCK Timing Frequency Duty Cycle Serial Interface Timing Slave mode SCLK Period SCLK Pulse Width Low Pulse ...
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ASAHI KASEI n Timing Diagram LRCK tSLR SCLK tLRM SDTO tSDS SDTI LRCK tMSLR SCLK SDTO SDTI PDN SDTO MS0053-E-00 tSLKL tLRS tSDH Serial Interface Timing (Slave mode) tSDS tSDH Serial Interface Timing (Master mode) tPD tPDV Reset & Initialize ...
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ASAHI KASEI n System Clock The master clock (MCLK) can be a crystal resonator placed across the XTI and XTO pin. The relationship between the MCLK and the desired sample rate is defined in Table 1. The MCLK frequency is ...
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ASAHI KASEI n Audio Serial Interface Format Data is shifted in/out the SDTI/SDTO pins using SCLK and LRCK inputs. The AK4525 supports the master mode. In this case, SCLK and LRCK are outputs and the frequency of SCLK is fixed ...
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ASAHI KASEI LRCK( SCLK(i:64fs) SDTO( SDTI( 19:MSB, 0:LSB Lch Data LRCK( SCLK(i:32fs) SDTO( SDTI( ...
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ASAHI KASEI n De-emphasis Filter The DAC of AK4525 includes the digital de-emphasis filter (tc=50/15µs) by IIR filter. This filter corresponds to three frequencies (32kHz, 44.1kHz and 48kHz). The de-emphasis filter selected by DEM0 and DEM1 is enabled for input ...
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ASAHI KASEI n Power-Down & Reset The ADC and DAC of AK4525 are placed in the power-down mode by bringing a power down pin, PDN “L” and each digital filter is also reset at the same time.This reset should always ...
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ASAHI KASEI Figure 8 shows the system connection diagrams. This is an example which analog signal is input by single ended circuit. In case of differential input, please refer to Figure 11. An evaluation board is available which demonstrates application ...
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ASAHI KASEI 5V analog VA 5V analog VA 1. Grounding and Power Supply Decoupling The AK4525 requires careful attention to power supply and grounding arrangements. VA and VD are usually supplied from analog supply in system. Alternatively if VA and ...
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ASAHI KASEI 1.5Vpp AK4525 1.5nF 2 AINR+ 3 AINR- 1.5Vpp AINL+ 4 AINL- 5 Figure 11. Differential Input Buffer Example 4. Analog Outputs The analog outputs are also single-ended and centered around the VCOM voltage. The input signal range scales ...
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ASAHI KASEI 28pin VSOP (Unit: mm) *9.8 0.2 0.675 28 1 0.22 0.1 Seating Plane NOTE: Dimension "*" does not include mold flash. n Material & Lead finish Package molding compound: Lead frame material: Lead frame surface treatment: MS0053-E-00 PACKAGE ...
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... AKM harmless from any and all claims arising from the use of said product in the absence of such notification. MS0053-E-00 MARKING AKM AK4525VF XXXBYYYYC Date code identifier Lot number (X : Digit number Alpha character) Assembly date (Y : Digit number, C Alpha character) IMPORTANT NOTICE ...