ALC5642R-VF-CG datasheet(48/156 Pages) REALTEK

部件名	ALC5642R-VF-CG

功能描述	Multi-Channel Audio Hub/CODEC

Download	156 Pages

Scroll/Zoom	100%

制造商	REALTEK [Realtek Semiconductor Corp.]

网页	https://www.realtek.com/en/

标志

48 / 156 page

ALC5642-VF

Datasheet

Multi-Channel Audio Hub/CODEC with embedded Voice

DSP and SounzReal

TM Digital Sound Effect

36

Rev. 0.93

7.11. Speaker Amplifier Ratio Gain

Owing to speaker power (SPKVDD) and analog power (AVDD) are under different power domain. And

normally the speaker power is higher than analog power. So the audio input signal needs to be boosted or

reduced by a gain then output from speaker amplifier. When SPKVDD is dropping, the gain needs to be

reduced to prevent the signal is clipping. And when SPKVDD is rising, the gain need to be boosted to

prevent the signal is too small.

Table 15.

Ration Gain Table for SPKVDD and AVDD

AVDD = 1.8V

AC + DC

Ratio Gain

Register Setting

MX-8D[15:12]

SPKVDD

3.0 V

1.94

0000'b, 1.94x

3.3 V

2.0

0001'b, 2.00x

3.5 V

2.11

0010'b, 2.11x

3.6 V

2.22

0011'b, 2.20x

3.8 V

2.33

0100'b, 2.33x

4.0 V

2.44

0101'b, 2.44x

4.2 V

2.55

0110'b, 2.55x

4.4 V

2.66

0111'b, 2.66x

4.6 V

2.77

1000

’b, 2.77x

4.8 V

3.0

1001

’b, 3.00x

5.0 V

3.3

1010

’b, 3.30x

AVDD = 1.8V

SPKVDD = 4.2V

VMID =0.9V

VMID = 2.1V

SPKVDD = 3.6V

VMID = 1.8V

Figure 22.

Ratio Gain Behavior for SPKVDD and AVDD

类似零件编号 - ALC5642R-VF-CG

制造商	部件名	数据表	功能描述
Realtek Semiconductor C...	ALC5640	1Mb / 150P	Multi-Channel Audio Hub/CODEC
	ALC5640-VB	1Mb / 150P	Multi-Channel Audio Hub/CODEC
	ALC5640-VB-CG	1Mb / 150P	Multi-Channel Audio Hub/CODEC
	ALC5640-VB-CGT	1Mb / 150P	Multi-Channel Audio Hub/CODEC
	ALC5640R-VB-CG	1Mb / 150P	Multi-Channel Audio Hub/CODEC

More results

类似说明 - ALC5642R-VF-CG

制造商	部件名	数据表	功能描述
Realtek Semiconductor C...	ALC5645	1Mb / 188P	Multi-Channel Audio Hub/CODEC
	ALC5640	1Mb / 150P	Multi-Channel Audio Hub/CODEC
	ALC5672	1Mb / 179P	Multi-Channel Audio Hub/CODEC
Wolfson Microelectronic...	WM8994	3Mb / 359P	Multi-Channel Audio Hub CODEC for Smartphones
	WM1811A	3Mb / 328P	Multi-Channel Audio Hub CODEC for Smartphones
	WM8958	4Mb / 377P	Multi-Channel Audio Hub CODEC for Smartphones
List of Unclassifed Man...	AV2188	198Kb / 20P	Multi-Channel Audio CODEC
Asahi Kasei Microsystem...	AKD4626A-B	467Kb / 44P	Multi-channel Audio CODEC.
Wolfson Microelectronic...	WM8998	4Mb / 307P	High Performance Audio Hub CODEC
Asahi Kasei Microsystem...	AK7770EQ	412Kb / 22P	Audio DSP with Multi-Channel Audio CODEC