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PDF MT8292 Data sheet ( Hoja de datos )
| Número de pieza | MT8292 | |
| Descripción | Audio Multiplexer with Headphone Driver & PGA Output | |
| Fabricantes | MediaTek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MT8292 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Preliminary specifications are subject to change without notice
MT8292 Datasheet
Audio Multiplexer with Headphone Driver &
PGA Output
Datasheet
Product Specification
This document contains information that is proprietary to MediaTek Inc. Unauthorized
reproduction or disclosure of this information in whole or in part is prohibited.
1
2007/5 Rev 0.81
1 page  
Preliminary specifications are subject to change without notice
MT8292 Datasheet
1 General Description
1.1 Overview
The MediaTek MT8292 introduces the advantages of an input multiplexer, the headphone driver and the PGA
outputs. The MT8292 performs 8:1 stereo input multiplexer. The analog input pins can either independently
support GPIO function or provide extra GPIO pins to use.
Each of the stereo PGA outputs as well as a headphone driver can reach 2Vrms in a 9V or 12V supply
environment. On the other hand, through the two wire control, the MT8292 can control the digital function of the
host IC (ie., the MT538x for example). Together with an external audio ADC and an audio DAC, the MT8292 can
reach high voltage and gain output.
1.2 Key Features
56-pin QFN package
Allows 2Vrms input swing from analog input and supports 2Vrms PGA output
MUTE and PGA function
Headphone driver output
Stereo PGA gain control from 15dB to -36dB for each output
Headphone PGA gain from 21dB to -36dB for output
Two Wire control
General purpose I/O function
+8.2V to +13.2V analog power supply
+3.0V to +3.6V digital power supply
5
2007/5 Rev 0.81
5 Page 
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE
MT8292 Datasheet
MTK CONFIDENTIAL, NO DISCLOSURE
THD+N
-
Dynamic range
-
Output channel separation
-
Programmable gain range (analog) -
Power down current
IAVDD
IDVDD
Power supply rejection ratio
PSRR
Headphone Buffer
Gain range (analog)
-
THD+N
-
Power supply rejection ratio
SNR
Analog Input Performance
Input signal level (0dB)
SNR
Dynamic range
THD+N
Input channel separation
Power supply rejection ratio
PSRR
-
-
-
-
-
-
PSRR
Supply Current
Analog supply current
Digital supply current
-
-
1kHz 0dB analog input
1kHz, THD+N @-60dBFs
1kHz, 0dBFs
1kHz, Input
AVDD=9V or 12V
DVDD=3.3V
1kHz 100mVpp
1kHz, Input
1kHz, RL=32ohms
@Po=10mWrms
1kHz, RL=32ohms
@Po=20mWrms
20Hz to 20kHz without
supply decoupling
A-weighted
-
A-weighted
1kHz, THD+N @-60dBFs
1kHz, 0dBFs
1kHz, -3dBFs
1kHz, Input
1kHz 100mVpp
20Hz to 20kHz 100mVpp
AVDD=9V or 12V
HPVDD=9V or 12V
DVDD=3.3V
-
-
-
-36
-
-
-
-36
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-86
96
90
-
0.1
0.1
50
-
-87
-80
-50
96
2
96
100
-86
-86
90
54
50
12
10
10
- dB
- dB
- dB
15 dB
- mA
- mA
- dB
21 dB
- dB
- dB
- dB
- dB
- Vrms
- dB
- dB
- dB
- dB
- dB
- dB
- dB
- mA
- mA
- mA
11
2007/5 Rev 0.81
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MT8292.PDF ] | |
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