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参数资料
| 型号： | MAS3519F |
| 厂商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 元件分类： | Codec |
| 英文描述： | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| 中文描述： | 新加坡金融管理局35x9F的MPEG 2 / 3层，AAC音频解码器，G.729的附件A编解码器 |
| 文件页数： | 60/92页 |
| 文件大小： | 1186K |
| 代理商： | MAS3519F |
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MAS 35x9F
DATA SHEET
60
June 30, 2004; 6251-505-1DS
Micronas
4.3. Pin Descriptions
4.3.1. Power Supply Pins
The use of all power supply pins is mandatory to
achieve correct function of the MAS 35x9F.
VDD, VSS
Digital supply pins.
SUPPLY
XVDD, XVSS
Supply for digital output pins.
SUPPLY
I2CVDD
Supply for I
2
C interface circuitry. This net uses VSS or
XVSS as the ground return line.
SUPPLY
PVDD
Auxiliary pin for analog circuitry. This pin has to be
connected via a 3 nF capacitor to AVDD1. Extra care
should be taken to achieve a low-inductance PCB line.
SUPPLY
AVDD0/AVSS0
Supply for analog output amplifier.
SUPPLY
AVDD1/AVSS1
Supply for internal analog circuits (A/D, D/A convert-
ers, clock, PLL, S/PDIF input).
SUPPLY
AVDD0/AVSS0 and AVDD1/AVSS1 should receive the
same supply voltages.
4.3.2. Analog Reference Pins
AGNDC
Internal analog reference voltage. This pin serves as
the internal ground connection for the analog circuitry.
VREF
Analog reference ground. All analog inputs and out-
puts should drive their return currents using separate
traces to a ground starpoint close to this pin. Connect
to AVSS1. This reference pin should be as noise-free
as possible.
4.3.3. DC/DC Converters and
Battery Voltage Supervision
DCSG1/DCSG2
DC/DC converters switch ground. Connect using sep-
arate wide trace to negative pole of battery cell. Con-
nect also to AVSS0/1 and VSS/XVSS, VREF.
SUPPLY
DCSO1/DCSO2
DC/DC converter switch connection. If the respective
DC/DC converter is not used, this pin must be left
vacant.
SUPPLY
VSENS1/VSENS2
Sense input and power output of DC/DC converters. If
the respective DC/DC converter is not used, this pin
should be connected to a supply to enable proper
function of the PUP-signals.
IN
DCEN
Enable signal for both DC/DC converters. If none of
the DC/DC converters is used, this pin must be con-
nected to VSS.
IN
PUP
Power-up. This signal is set when the required volt-
ages are available at both DC/DC converter output
pins VSENS1 and VSENS2. The signal is cleared
when both voltages have dropped below the reset
level in the DCCF Register.
OUT
VBAT
Analog input for battery voltage supervision.
IN
4.3.4. Oscillator Pins and Clocking
XTI
XTO
The XTI pin is connected to the input of the internal
crystal oscillator, the XTO pin to its output. Each pin
should be directly connected to the crystal and to a
ground-connected capacitor (see application diagram,
Fig. 5–1 on page 89).
IN
OUT
CLKO
The CLKO can drive an output clock line.
OUT
4.3.5. Control Lines
I2CC
I2CD
Standard I
2
C control lines.
SCL
SDA
IN/OUT
IN/OUT
DVS
I
2
C device address selector. Connect this pin either to
VDD (I
2
C device address: 3E/3F
hex
) or VSS (I
2
C
device address: 3C/3D
hex
) to select a proper I
2
C
device address (see also Table 3–2 on page 23).
IN
4.3.6. Parallel Interface Lines
PI12..PI19
The PIO input pins PI12..PI19 are used as 8-bit I/O
interface to a microcontroller in order to transfer com-
pressed and uncompressed data. PI12 is the LSB,
PI19 the MSB.
IN/OUT
相关PDF资料 |
PDF描述 |
|---|---|
| MAS3529F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3539F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3549F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAS3529F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3539F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3549F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3559F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3587F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MPEG Layer 3 Audio Encoder/Decoder |
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