ak4309b AKM Semiconductor, Inc., ak4309b Datasheet
ak4309b
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ak4309b Summary of contents
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... The AK4309B is a 1bit stereo DAC for multimedia audio systems. A 1bit DAC can achieve monotonicity and low distortion with no adjustment and is superior to traditional R-2R ladder based DACs. In the AK4309B, the loss of accuracy from clock jitter is also improved by using SCF techniques for on-chip post filter. The AK4309B includes continuous time filter with single end output and does not need any external parts ...
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... Pin Layout Compatibility with AK4310/09A Parameter Power Supply Digital I/F level DR Output Voltage Click Noise Function of Pin 4 Package 0177-E-00 C -10 +70 20pin SSOP(0.65mm pitch) Evaluation Board (AK4309B's board is the same as AK4310's) AK4310 AK4309A 3 5.5V 4.5 5.5V CMOS TTL 92dB 91dB 2.8Vpp 3.4Vpp High Middle PD PD ...
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... Connection RST 5 I Reset Pin When at "L", the AK4309B is in power-down mode and is held in reset. The AK4309B should always be reset upon power-up. 6 MCLK I Master Clock Input Pin An external TTL clock should be input on this pin. The fs is selected by CKS pin. ...
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... Analog output voltage scales with the voltage of VREFH at VREFL=AVSS. AOUT(typ.@0dB)=3.4Vpp*VREFH/5. * AKM assumes no responsibility for the usage beyond the conditions in this data sheet. 0177-E-00 ABSOLUTE MAXIMUM RATINGS Symbol AVDD DVDD VDA IIN VIND Ta Tstg Symbol min AVDD 4.5 DVDD 4.5 VREF 3 [AK4309B] min max Units -0.3 6.0 V -0 ±10 mA -0.3 AVDD+0 -10 70 ...
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... Power Dissipation in the power-down mode is applied with no external clocks (MCLK,BICK,LRCK held "H" or "L"). 8 . PSR is applied to AVDD,DVDD with 1kHz, 100mVpp. VREF pin is held +5V. 0177-E-00 ANALOG CHARACTERISTICS 10k ; unless otherwise specified) L min 3.23 10 (Note [AK4309B] typ max Units 16 Bits -84 - ...
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... High-Level Output Voltage (Iout=-100A) Low-Level Output Voltage (Iout=100A) Input Leakage Current 0177-E-00 FILTER CHARACTERISTICS Symbol min 22. DIGITAL CHARACTERISTICS Symbol min VIH 2.2 VIL - VOH DVDD-0.5 VOL - Iin - - 6 - [AK4309B] typ max Units 20.0 kHz - kHz kHz dB ±0.05 dB 14 ±0.5 typ max Units - - ± ...
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... SDATA Hold Time SDATA Setup Time Reset Timing RST Pulse Width (Note 12 ) Notes BICK rising edge must not occur at the same time as LRCK edge The AK4309B can be reset by bringing RST "L" to "H" only upon power up. 0177-E-00 SWITCHING CHARACTERISTICS =20pF) L Symbol ...
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... ASAHI KASEI Timing Diagram 0177-E- [AK4309B] 1997/6 ...
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... If these clocks are not provided, the AK4309B may draw excess current because the device utilizes dynamic refreshed logic internally. If the external clocks are not present, the AK4309B should be in the power-down mode(RST ="L"). After exiting reset at power-up etc., the AK4309B is in power- down mode until MCLK and LRCK are input. ...
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... System Reset The AK4309B should be reset once by bringing RST "L" upon power-up. The AK4309B is powered up and the internal timing starts clocking by LRCK " " after exiting reset and power down state by MCLK. The AK4309B is in power-down mode until LRCK is input. ...
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... No load current may be drawn from VCOM pin. All signals, especially clocks, should be kept away from the VREF and VCOM pins in order to avoid unwanted coupling into the AK4309B. 3. Analog Outputs The analog outputs are also single-ended and centered around the VCOM voltage. The output signal range is typically 3 ...
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... ASAHI KASEI 20pin SSOP (Unit: mm) NOTE: Dimension “*” does not include mold flash. Package & Lead frame material Package molding compound : Lead frame material : Lead frame surface treatment : Solder plate 0177-E-00 PACKAGE Epoxy [AK4309B] 1997/6 ...
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... ASAHI KASEI 0177-E-00 MARKING Contents of AAXXXX AA: Lot# XXXX: Date Code - 13 - [AK4309B] 1997/6 ...
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IMPORTANT NOTICE These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. AKM assumes no liability ...