參數(shù)資料
型號(hào)： AK4536
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述： 16位單聲道編解碼器ALC的
文件頁(yè)數(shù)： 33/59頁(yè)
文件大?。?/td> 403K
代理商： AK4536
ASAHI KASEI
[AK4536]
MS0174-E-00
2002/09
- 33 -
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Speaker Output
The output signal from DAC is input to the Speaker-amp via the ALC2 circuit. This Speaker-amp is a mono output
controlled by BTL and a gain of the Speaker-Amp is set by SPKG bit. When SPKG bit is “0”, output power is a maximum
of 150mW@8
and SVDD = 3.3V. When SPKG bit is “1”, output power is a maximum of 250mW@8
and SVDD =
3.3V.
Speaker blocks (MOUT, ALC2 and Speaker-amp) can be powered-up/down by controlling the PMSPK bit. When the
PMSPK bit is “0”, the MOUT, SPP and SPN pins are placed in a Hi-Z state.
When the PMSPK bit is “1” and SPPS bit is “0”, the Speaker-amp enters power-save-mode. In this mode, the SPP pin is
placed in a Hi-Z state and the SPN pin goes to SVDD/2 voltage. And then the Speaker output gradually changes to the
SVDD/2 voltage and this mode can reduce pop noise at power-up. When the AK4536 is powered-down, pop noise can be
also reduced by first entering power-save-mode.
PMSPK bit
SPPS bit
SPP pin
SPN pin
SVDD/2
SVDD/2
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Figure 29. Power-up/Power-down Timing for Speaker-Amp
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MONO LINE OUTPUT (AOUT pin)
A signal of DAC is output from AOUT pin. When the DACA bi is “0”, this output is OFF and the AOUT pin is forced to
VCOM voltage. The load resistance is 10k
(min). When PMAO bit is “0”, the mono line output enters power-down and
the output is placed in a Hi-Z state.
相關(guān)PDF資料
PDF描述
AK4536VN 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
AK4537 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VN 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
AK4538 16Bit DS CODEC with MIC/HP/SPK-AMP
AK4538VN 16Bit DS CODEC with MIC/HP/SPK-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4536VN 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP
AK4537 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VN 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VNP-L 制造商:AKM Semiconductor Inc 功能描述:AK4537VNP-L
AK4538 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
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