參數(shù)資料
型號(hào)： AK4534
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16Bit CODEC with MIC/HP/SPK-AMP
中文描述： 16位編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù)： 31/64頁
文件大?。?/td> 443K
代理商： AK4534
ASAHI KASEI
[AK4534]
MS0133-E-03
2003/5
- 31 -
n
Speaker Output
Mono signal [(L+R)/2] converted from stereo DAC output and BEEP input signal can be output via Speaker-amp which is
controlled by BTL. ALC2 circuit is available for DAC output signal. This Speaker-amp can deliver a maximum power of
300mW(typ)@THD=10%, 250mW(typ)@THD=0.1% into 8 ohm load at HVDD=3.3V. Maximum output power is
137mW(typ) when DAC output signal is output via ALC2 circuit as system design example (Figure 31). When BEEP input
is used for DAC output, maximum power becomes 300mW. Figure 16 and Figure 17 indicates connection examples for
300mW output.
Speaker blocks (MOUT2, ALC2 and Speaker-amp) can be powered up/down by controlling the PMSPK bit. When the
PMSPK bit is “0”, the MOUT2, SPP and SPN pins are placed in a Hi-Z state.
When the 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 HVDD/2 voltage. And then the Speaker output gradually changes to the HVDD/2 voltage and this
mode can reduce pop noise at power-up. When the AK4534 is powered down, pop noise can be also reduced by first
entering power-save-mode.
PMSPK bit
SPPS bit
SPP pin
SPN pin
HVDD/2
HVDD/2
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Figure 15. Power-up/Power-down Timing for Speaker-amp
[Connection Example for 300mW output]
1)
Using BEEPM pin
13k
MOUT2
0.047u
BEEPM
20k
±
30%
45%AVDD
BPMSP
SPP
SPN
SPK-Amp
AK4534
Figure 16. Connection example for 300mW output using BEEPM pin
相關(guān)PDF資料
PDF描述
AK4534VN 16Bit CODEC with MIC/HP/SPK-AMP
AK4536 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4534VN 制造商:AKM 制造商全稱:AKM 功能描述:16Bit CODEC with MIC/HP/SPK-AMP
AK4534VQ 功能描述:IC CODEC 16BIT MIC/HP/SPK-AMP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
AK4536 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP
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
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